S-101FC
Ocean, Coastal, Ports and Harbors. Excludes Inland waters. Supports QualityOfBathymetricData and 2015 updates to FC model.
Marine Navigation
0.9.0
2017-01-31
IHO
via S-100 working group
pointOfContact
unclassified
Application Profile
name of an application profile that can be used with the online resource (ISO 19115)
applicationProfile
APPPRF
Text
Beacon shape
The shape a beacon exhibits
beaconShape
BCNSHP
Enumeration
stake, pole, perch, post
an elongated wood or metal pole, embedded in the bottom to serve as a navigational aid or a support for a navigational aid.
1
withy
a tree without roots stuck or spoiled into the bottom of the sea to serve as a navigational aid.
2
beacon tower
a solid structure of the order of 10 metres in height used as a navigational aid.
3
lattice beacon
a structure consisting of strips of metal or wood crossed or interlaced to form a structure to serve as an aid to navigation or as a support for an aid to navigation.
4
pile beacon
a long heavy timber(s) or section(s) of steel, wood, concrete, etc., forced into the seabed to serve as an aid to navigation or as a support for an aid to navigation.
5
cairn
a mound of stones, usually conical or pyramidal, raised specifically for maritime navigation.
6
buoyant beacon
a tall spar-like beacon fitted with a permanently submerged buoyancy chamber, the lower end of the body is secured to seabed sinker either by a flexible joint or by a cable under tension.
7
Building shape
The specific shape of the building.
buildingShape
BUISHP
Enumeration
high-rise building
a building having many storeys.
5
pyramid
a polyhedron of which one face is a polygon of any number of sides, and the other faces are triangles with a common vertex.
6
cylindrical
shaped like a cylinder, which is a solid geometrical figure generated by straight lines fixed in direction and describing with one of its points a closed curve, especially a circle.
7
spherical
shaped like a sphere, which is a body the surface of which is at all points equidistant from the centre.
8
cubic
a shape the sides of which are six equal squares a regular hexahedron.
9
Buoy shape
The shape a buoy exhibits
buoyShape
The principal shapes are those recommended in the International Association of Lighthouse Authorities - IALA System.
BOYSHP
Enumeration
conical (nun, ogival)
the upper part of the body above the water-line, or the greater part of the superstructure, has approximately the shape or the appearance of a pointed cone with the point upwards.
1
can (cylindrical)
the upper part of the body above the water-line, or the greater part of the superstructure, has the shape of a cylinder, or a truncated cone that approximates to a cylinder, with a flat end uppermost.
2
spherical
the upper part of the body above the water-line, or the greater part of the superstructure, has the shape of a part of a sphere.
3
pillar
the upper part of the body above the water-line, or the greater part of the superstructure is a narrow vertical structure, pillar or lattice tower.
4
spar (spindle)
the upper part of the body above the water-line, or the greater part of the superstructure, has the form of a pole, or of a very long cylinder, floating upright.
5
barrel (tun)
the upper part of the body above the water-line, or the greater part of the superstructure, has the form of a barrel or cylinder floating horizontally.
6
super-buoy
a very large buoy, generally more than 5m in diameter.
7
ice buoy
a specially constructed shuttle shaped buoy which is used in ice conditions.
8
Buried depth
The depth below the sea bed to which an object is buried.
buriedDepth
The unit of measure is defined in the HUNI subfield of the DSPM record or in the HUNITS attribute of the M_UNIT meta object class, e.g., metre (m). The resolution is 0.1 m or 0.1 ft.
BURDEP
Real
Call sign
The designated call-sign of a radio station.
callSign
CALSGN
Text
Category of airport/airfield
Classification of airport/airfield based on the primary aircraft and user group.
categoryOfAirportAirfield
CATAIR
Enumeration
military aeroplane airport
a large military airfield usually equipped with a control tower, hangars and accommodation for the receiving and discharging of passengers or cargo.
1
civil aeroplane airport
a large airfield usually equipped with a control tower, hangars and accommodation for the receiving and discharging of passengers or cargo.
2
military heliport
a landing place for helicopters controlled by the military.
3
civil heliport
a landing place for helicopters, often the roof of a building.
4
glider airfield
an area of land set aside for the take-off and landing of gliders.
5
small planes airfield
an area of land set aside for the take-off and landing of small aeroplanes.
6
emergency airfield
an area of land set aside for the take-off and landing of aeroplanes or helicopters in times of emergency.
8
Search and rescue airfield
An area of land set aside for the take-off and landing of aeroplanes or helicopters in times of search and rescue.
9
Category of anchorage
Classification of an area where diffrent usetypes of vessel can remain static.
categoryOfAnchorage
CATACH
Enumeration
unrestricted anchorage
an area in which vessels anchor or may anchor.
1
deep water anchorage
an area in which vessels of deep draught anchor or may anchor.
2
tanker anchorage
an area in which tankers anchor or may anchor.
3
explosives anchorage
an area set apart for anchored ships discharging or receiving explosives.
4
quarantine anchorage
an area where a vessel anchors when satisfying quarantine regulations.
5
sea-plane anchorage
an area in which sea-planes anchor or may anchor.
6
small craft anchorage
an area in which yachts and small boats anchor or may anchor.
7
small craft mooring area
an area in which yachts and small boats moor.
8
anchorage for periods up to 24 hours
an area in which vessels anchor or may anchor for periods of up to 24 hours.
9
anchorage for a limited period of time
an area in which vessels may anchor for a period of time not to exceed a specific limit.
10
Waiting anchorage
N/A
14
Reported anchorage
N/A
15
Category of bridge
Classification of structures spanning and providing passage over a gap or barrier, such as a river or roadway
categoryOfBridge
CATBRG
Enumeration
fixed bridge
a bridge having permanent horizontal and vertical alignment.
1
opening bridge
a bridge that is closed when set for carrying road traffic and open when set to permit marine traffic to pass through the waterway it crosses.
2
swing bridge
a movable bridge (or span thereof) which rotates in a horizontal plane about a vertical pivot to allow the passage of vessels.
3
lifting bridge
a movable bridge (or span thereof) which is capable of being lifted vertically to allow vessels to pass beneath.
4
bascule bridge
a counterpoise bridge rotated in a vertical plane about an axis at one or both ends.
5
pontoon bridge
a fixed floating bridge supported by pontoons.
6
drawBridge
a general name for bridges of which part or the entire span of the bridge may be raised or drawn aside to allow ships to pass through.
7
transporter bridge
a bridge that has towers on each side of the waterway connected by a girder system on which a carriage runs.
8
foot bridge
a bridge structure used only for pedestrian traffic.
9
viaduct
a long bridge consisting of a series of beams, spans or girders (of steel, timber or concrete) supported on towers or piers and used to carry a road, railroad, etc.
10
aqueduct
a bridge supporting an artificially elevated channel, for the conveyance of water.
11
suspension bridge
a fixed bridge consisting of either a roadway or a truss suspended from two or more cables which pass over towers and are anchored by backstays to a firm foundation.
12
Category of built-up area
Human settlement classification
categoryOfBuiltUpArea
CATBUA
Enumeration
urban area
an area predominantly occupied by man-made structures used for residential, commercial, and industrial purposes.
1
settlement
a small collection of dwellings in a remote area.
2
village
a collection of houses in a rural district, usually smaller than a town.
3
town
any considerable collection of dwellings and other buildings larger than a village, but not incorporated as a city.
4
city
a major town inhabited by a large permanent community with all essential services.
5
holiday village
a collection of smaller houses (cottages, mobile homes etc.) which is mainly populated on a seasonal basis.
6
Category of cable
Classification of the cable based on the services provided.
categoryOfCable
CATCBL
Enumeration
power line
a cable used for the supply of electricity.
1
transmission line
multiple un-insulated cables usually supported by steel lattice towers.
3
telephone
a cable used for the transmission of telephone signals.
4
telegraph
a cable used for the transmission of telegraph signals.
5
mooring cable/chain
a cable or chain used to secure a mooring buoy or other floating structure.
6
ferry
A cable or chain used to facilitate the movement of a ferry
7
Fibre optic cable
A cable made of glass or plastic fiber designed to guide light along its length, fibre optic cables are widely used in fiber-optic communication, which permits transmission over longer distances and at higher data rates than other forms of communication.
8
Category of canal
Classification of an artificial waterway used for travel, drainage, or irrigation.
categoryOfCanal
CATCAN
Enumeration
transportation
a canal used for navigation as part of a transport system.
1
drainage
a canal used to drain excess water from surrounding land.
2
irrigation
a canal used to supply water for the purpose of irrigation.
3
Category of cardinal mark
Cardinal marks are classified according to the quadrant of space they occupy.
categoryOfCardinalMark
Cardinal marks are used in conjunction with the compass to indicate where a mariner will find safe navigable water.
Cardinal marks do not have a distinctive shape but are normally pillar or spar. They are always painted in yellow and black horizontal bands and their distinctive double cone top-marks are always black. (Note that such top-marks are encoded as separate TOPMAR objects). Cardinal marks may also have a special system of flashing white lights and if such lights are fitted they are encoded as separate LIGHTS objects.
CATCAM
Enumeration
north cardinal mark
Quadrant bounded by the true bearing NW-NE taken from the point of interest it should be passed to the north side of the mark.
1
east cardinal mark
Quadrant bounded by the true bearing NE-SE taken from the point of interest it should be passed to the east side of the mark.
2
south cardinal mark
Quadrant bounded by the true bearing SE-SW taken from the point of interest it should be passed to the south side of the mark.
3
west cardinal mark
Quadrant bounded by the true bearing SW-NW taken from the point of interest it should be passed to the west side of the mark.
4
Category of checkpoint
Classification of a place where vehicles or travellers are stopped for identification or inspection
categoryOfCheckpoint
CATCHP
Enumeration
custom
an office, especially in ports, at which customs dues are collected or administrated.
1
Category of coastline
Physical condition of the coastline
categoryOfCoastline
CATCOA
Enumeration
steep coast
a coast backed by rock or earth cliffs, gives a good radar return and is useful for visual identification from a considerable distance off, where cliffs alternate with low lying coast along the shoreline.
1
flat coast
a level coast with no obvious topographic features.
2
sandy shore
a shoreline area made up of sand, i.e., loose material consisting of small but easily distinguishable, separate grains, between 0.0625 and 2.000 millimetres in diameter.
3
stony shore
a shoreline area made up of rock and rock fragments ranging in size from pebbles and gravel to boulders or large rock masses.
4
shingly shore
a shoreline area made up of rounded, often flat waterworn rock fragments larger than approximately 16 millimetres.
5
glacier, seaward end
projecting seaward extension of glacier, usually afloat.
6
mangrove
one of several genera of tropical trees or shrubs which produce many prop roots and grow along low lying coasts into shallow water.
7
marshy shore
a shoreline area made up of spongy land saturated with water.
8
coral reef
a reef, often of large extent, composed chiefly of coral and its derivatives.
9
ice coast
a vertical cliff forming the seaward edge of an ice shelf, ranging in height from 2m to 50m or more above sea level.
10
shelly shore
a shoreline area made up of shells, i.e., made up of the hard outside covering of marine animals.
11
Category of conveyor
Classification of conveyor used for moving goods from one location to another.
categoryOfConveyor
CATCON
Enumeration
aerial cableway (telepheric)
a conveyor along which material or people are transported by means of overhead cables supporting buckets, cable cars, etc.
1
belt conveyor
a conveyor along which material or people are transported by means of a moving belt.
2
Flume
An artificial channel, usually an inclined chute or trough, for carrying water to furnish power, transport logs down a mountainside, etc.
3
Lift/Elevator
any of various mechanical devices for raising objects or materials.
4
Category of crane
Classification of machines used for hoisting and moving heavy objects
categoryOfCrane
CATCRN
Enumeration
container crane/gantry
a high speed, shore-based crane used in the lift-on/lift-off operation of specially constructed containers.
2
sheerlegs
a tripodal structure used in dockyards and harbours for stepping masts or lifting loads in to and out of vessels.
3
travelling crane
a crane mounted on rails (track) that can move (usually parallel to the wharf face) in order to load and unload cargo vessels.
4
A-frame
a type of crane shaped like the letter 'A'.
5
Goliath crane
A powerful travelling crane mounted on a movable gantry of large span.
6
Category of dam
Classification of a structure acting as barrier to water flow
categoryOfDam
CATDAM
Enumeration
weir
a dam erected across a river to raise the level of the water. A fence of stakes set in a river or along the shore as a trap for fish.
1
dam
a barrier to check or confine anything in motion particularly one constructed to hold back water and raise its level to form a reservoir, or to prevent flooding.
2
flood barrage
an opening dam across a channel which, when required, is closed to control flood waters.
3
Category of distance mark
Classification of fixed and virtual distance marks
categoryOfDistanceMark
CATDIS
Enumeration
distance mark not physically installed
a point at which a distance from an origin along a feature is given for information, but at which no specific marker exists.
1
visible mark, pole
a point at which a distance from an origin along a feature is given for information and which is marked by a pole.
2
visible mark, board
a point at which a distance from an origin along a feature is given for information and which is marked by a board.
3
visible mark, unknown shape
a point at which a distance from an origin along a feature is given for information and which is physically marked, but the shape of the mark is not known or not given.
4
Category of dock
Classification of vessel dock
categoryOfDock
CATDOC
Enumeration
tidal
a dock which is open to the sea and in which the water level is affected by tides.
1
non-tidal (wet dock)
a dock in which water can be maintained at any level by closing a gate when the water is at the desired level.
2
Category of dumping ground
Classification of an area based on the type of waste being disposed of.
categoryOfDumpingGround
CATDPG
Enumeration
chemical waste dumping ground
an area at sea where chemical waste is dumped.
2
nuclear waste dumping ground
an area at sea where nuclear waste is dumped.
3
explosives dumping ground
an area at sea where explosives are dumped.
4
spoil ground
an area at sea where dredged material is deposited.
5
vessel dumping ground
an area at sea where disused vessels are scuttled.
6
Category of fence
Classification of a physical boudary
categoryOfFence
CATFNC
Enumeration
fence
a man made barrier used as an enclosure or boundary or for protection.
1
hedge
a continuous growth of shrubbery planted as a fence, a boundary or a wind break.
3
wall
a fence constructed from masonry or stone.
4
Category of ferry
Classification of the manoeuvrability of the ferry vessel, not the various types of ferry vessel.
categoryOfFerry
The value 'cable ferry' indicates a ferry that follows a fixed route guided by a cable. A cable ferry may hinder the flow of other traffic.
CATFRY
Enumeration
'free-moving' ferry
a ferry which may have routes that vary with weather, tide and traffic.
1
cable ferry
a ferry that follows a fixed route guided by a cable.
2
ice ferry
a winter-time ferry which crosses a lead.
3
High speed ferry
A high speed water vessel for civilian use
5
Category of fishing facility
Classification of fishing facility provided based on different fishing methods.
categoryOfFishingFacility
CATFIF
Enumeration
fishing stake
a pole or stake placed in shallow water to outline a fishing ground or to catch fish
1
fish trap
a structure (usually portable) for catching fish
2
fish weir
a fence of stakes or stones set in a river or along the shore to trap fish
3
tunny net
a net built at sea for catching tunny
4
Category of fog signal
Classification of the various means of generating the fog signal.
categoryOfFogSignal
The classification 'horn' is the generic term for fog signals 'nautophone', 'reed' and 'tyfon'.
CATFOG
Enumeration
explosive
a signal produced by the firing of explosive charges.
1
diaphone
a diaphone uses compressed air and generally emits a powerful low-pitched sound, which often concludes with a brief sound of suddenly lowered pitch, termed the 'grunt'.
2
siren
a siren uses compressed air and exists in a variety of types which differ considerably in their sound and power.
3
nautophone
a horn having a diaphragm oscillated by electricity
4
reed
a reed uses compressed air and emits a weak, high pitched sound.
5
tyfon
a diaphragm horn which operates under the influence of compressed air or steam
6
bell
a ringing sound with a short range.
7
whistle
a distinctive sound made by a jet of air passing through an orifice.
8
gong
a sound produced by vibration of a disc when struck.
9
horn
a horn uses compressed air or electricity to vibrate a diaphragm and exists in a variety of types which differ greatly in their sound and power.
10
Category of fortified structure
Classification of the diffrent types of fortified structure
categoryOfFortifiedStructure
CATFOR
Enumeration
castle
a large fortified building or structure
1
fort
a fortified enclosure, building, or position able to be defended against an enemy
2
battery
a fortified structure on which artillery is mounted
3
blockhouse
a concrete structure strengthened to give protection against enemy fire, with apertures to allow defensive gunfire
4
martello tower
a round fort for coastal defence.
5
redoubt
an outwork or fieldwork usually square or polygonal and without flanking defences.
6
Fortified submarine shelter
A fortified pen to hold submarines
8
Rampart
anything serving as a bulwark or defense.
9
Category of gate
Classification of a structure that can be swung, drawn, or lowered to block an entrance or a passageway
categoryOfGate
CATGAT
Enumeration
gate in general
1
flood barrage gate
an opening gate used to control flood water.
2
caisson
a steel structure used for closing the entrance of locks, wet and dry docks.
3
lock gate
lock gates are the massive hinged doors at each end of a lock.
4
dyke gate
an opening gate in a dyke.
5
sluice
a sliding gate or other contrivance for changing the level of a body of water by controlling the flow into or out of it.
6
Category of harbour facility
Classification of habour use
categoryOfHarbourFacility
A terminal provides facilities for handling particular forms of cargo (IHO Dictionary, S-32, 5th Edition, 5343).
CATHAF
Enumeration
RoRo-terminal
a terminal for roll-on roll-off ferries.
1
ferry terminal
a terminal for passenger and vehicle ferries.
3
fishing harbour
a harbour with facilities for fishing boats.
4
yacht harbour/marina
a harbour with facilities for small boats and yachts
5
naval base
a centre of operations for naval vessels
6
tanker terminal
a terminal for the bulk handling of liquid cargoes.
7
passenger terminal
a terminal for the loading and unloading of passengers.
8
shipyard
a place where ships are built or repaired
9
container terminal
a terminal for container ships.
10
bulk terminal
a terminal for the handling of bulk materials such as iron ore, coal, etc.
11
syncrolift
a platform powered by synchronous electric motors used to lift vessels (larger than boats) in and out of the water.
12
straddle carrier
a wheeled vehicle designed to lift and carry containers or vessels within its own framework.
13
Service harbour
A harbour within the floating equipment (dredges, tugs...) of harbour services are stationed.
14
Pilotage service
N/A
15
Category of hulk
Classification of an old or unseaworthy ship used for a new fuction.
categoryOfHulk
CATHLK
Enumeration
floating restaurant
a permanently moored floating structure, such as an old ship, used as a restaurant.
1
historic ship
a ship of historical interest permanently moored as a tourist attraction.
2
museum
a permanently moored floating structure, such as an old ship, used as a museum.
3
accommodation
a permanently moored floating structure, such as an old ship, used for accommodation.
4
floating breakwater
a permanently moored floating structure, often constructed from old ships, used as a breakwater.
5
Category of ice
Classification of ice
categoryOfIce
Ice is the topic of another group and is subject to a future extension to this document.
CATICE
Enumeration
fast ice
sea ice which remains fast, generally in the position where originally formed, and which may attain a considerable thickness.
1
glacier
a mass of snow and ice continuously moving from higher to lower ground or, if afloat, continuously spreading.
5
polar ice
sea ice that is more than one year old (in contrast to winter ice). The WMO code defines polar ice as any sea ice more than one year old and more than 3 metres thick.
8
Category of installation buoy
Classification of fixed installation buoy
categoryOfInstallationBuoy
CATINB
Enumeration
catenary anchor leg mooring(CALM)
incorporates a large buoy which remains on the surface at all times and is moored by 4 or more anchors. Mooring hawsers and cargo hoses lead from a turntable on top of the buoy, so that the buoy does not turn as the ship swings to wind and stream.
1
single buoy mooring (SBM)
a mooring structure used by tankers to load and unload in port approaches or in offshore oil and gas fields.
2
Category of landmark
Classification of prominent cultural and natural features in the landscape
categoryOfLandmark
CATLMK
Enumeration
cairn
a mound of stones, usually conical or pyramidal, raised as a landmark or to designate a point of importance in surveying.
1
cemetery
an area of land for burying the dead.
2
chimney
a vertical structure containing a passage or flue for discharging smoke and gases.
3
dish aerial
a parabolic aerial for the receipt and transmission of high frequency radio signals.
4
flagstaff (flagpole)
a staff or pole on which flags are raised.
5
flare stack
a tall structure used for burning-off waste oil or gas.
6
mast
a straight vertical piece of timber or a hollow cylinder.
7
wind sock
a tapered fabric sleeve mounted so as to catch and swing with the wind, thus indicating the wind direction.
8
monument
a structure erected or maintained as a memorial to a person or event.
9
column (pillar)
a cylindrical or slightly tapering body of considerably greater length than diameter erected vertically.
10
memorial plaque
a slab of metal, usually ornamented, erected as a memorial to a person or event.
11
obelisk
a tapering shaft usually of stone or concrete, square or rectangular in section, with a pyramidal apex.
12
statue
a representation of a human, animal or fantasy figure in marble, bronze, etc.
13
cross
a monument, or other structure in form of a cross.
14
dome
a landmark comprising a hemispherical or spheroidal shaped structure
15
radar scanner
a device used for directing a radar beam through a search pattern
16
tower
a relatively tall structure which may be used for observation, support, storage or communication etc.
17
windmill
a wind driven system of vanes attached to a tower like structure (excluding wind-generated power plants).
18
windmotor
a modern structure for the use of windpower.
19
spire/minaret
a tall conical or pyramid-shaped structure often built on the roof or tower of a building, especially a church or mosque.
20
large rock or boulder on land
an isolated rocky formation or a single large stone
21
Triangulation mark
A recoverable point on the earth, whose geographic position has been determined by angular methods with geodetic instruments. A triangulation point is a selected point, which has been marked with a station mark, or it is a conspicuous natural or artificial feature. Also called trigonometric station or triangulation station.
22
Boundary Mark
A marker identifying the location of a surveyed boundary line.
23
Observation wheel
A bloody big Ferris Wheel
24
torii
a form of decorative gateway or portal, consisting of two upright wooden posts connected at the top by two horizontal crosspieces, commonly found at the entrance to Shinto temples.
25
Category of land region
General terms for describing landscapes.
categoryOfLandRegion
CATLND
Enumeration
fen
a type of bog, especially a low-lying area, wholly or partly covered with water and dominated by grasslike plants, grasses, sedges and reeds.
1
marsh
an area of wet, often spongy ground that is subject to frequent flooding or tidal inundations, but not considered to be continually under water. It is characterized by the growth of non woody plants and by the lack of trees.
2
moor/bog
wet spongy ground consisting of decaying vegetation, which retains stagnant water, too soft to bear the weight of any heavy body.
3
heathland
a tract of wasteland peat bog, usually covered by a low scrubby growth, but may have scattered small open water holes.
4
mountain range
a series of connected and aligned mountains or mountain ridges.
5
lowlands
low and relatively level land at a lower elevation than adjoining areas.
6
canyon lands
a relatively narrow, deep depression with steep sides, the bottom of which generally has a continuous slope.
7
paddy field
a piece of land set aside for crops which are periodically flooded (e.g. rice paddy).
8
agricultural land
areas used for cultivation of the soil, the breeding of livestock etc. and general farming.
9
savanna/grassland
a large area of relatively flat natural pasture.
10
parkland
a piece of ground kept for ornament and/or recreation or maintained in its natural state as a public property or area.
11
swamp
an area of spongy land saturated with water. It may have a shallow covering of water, usually with a considerable amount of vegetation appearing above the surface.
12
landslide
(or landslip). The sliding down of a mass of land on a mountain or cliff-side land which has so fallen.
13
lava flow
the substance that results from the cooling of molten rock.
14
saltpan
shallow pools of brackish water used for the natural evaporation of sea water to obtain salt.
15
moraine
Any accumulation of loose material deposited by a glacier
16
crater
bowl-shaped cavity, at the summit or on the side of a volcano.
17
cave
a natural subterranean chamber or series of chambers open to the earths surface.
18
rock column or pinnacle
any high tower or spire-shaped pillar of rock, alone or cresting a summit.
19
Category of lateral mark
Classification of lateral buoys
categoryOfLateralMark
There are two international buoyage regions, A and B, between which lateral marks differ. The buoyage region is encoded using the separate attribute MARSYS. When top-marks, retro reflectors and/or lights are fitted to these marks, they are encoded as separate objects.
CATLAM
Enumeration
port-hand lateral mark
indicates the port boundary of a navigational channel or suggested route when proceeding in the 'conventional direction of buoyage'.
1
starboard-hand lateral mark
indicates the starboard boundary of a navigational channel or suggested route when proceeding in the 'conventional direction of buoyage'.
2
preferred channel to starboard lateral mark
at a point where a channel divides, when proceeding in the 'conventional direction of buoyage', the preferred channel (or primary route) is indicated by a modified port-hand lateral mark.
3
preferred channel to port lateral mark
at a point where a channel divides, when proceeding in the 'conventional direction of buoyage', the preferred channel (or primary route) is indicated by a modified starboard-hand lateral mark.
4
Category of light
Classification of diffrent light types
categoryOfLight
Marine light (a light intended primarily for marine navigation) is not included in the above list. All lights are considered to be marine lights unless the attribute 'category of light' indicates otherwise.
CATLIT
Enumeration
directional function
a light illuminating a sector of very narrow angle and intended to mark a direction to follow.
1
leading light
a light associated with other lights so as to form a leading line to be followed.
4
aero light
an aero light is established for aeronautical navigation and may be of higher power than marine lights and visible from well offshore.
5
air obstruction light
a light marking an obstacle which constitutes a danger to air navigation.
6
fog detector light
a light used to automatically determine conditions of visibility which warrant the turning on or off of a sound signal.
7
flood light
a broad beam light used to illuminate a structure or area.
8
strip light
a light whose source has a linear form generally horizontal, which can reach a length of several metres.
9
subsidiary light
a light placed on or near the support of a main light and having a special use in navigation.
10
spotlight
a powerful light focused so as to illuminate a small area.
11
front
term used with leading lights to describe the position of the light on the lead as viewed from seaward.
12
rear
term used with leading lights to describe the position of the light on the lead as viewed from seaward.
13
upper
term used with leading lights to describe the position of the light on the lead as viewed from seaward.
14
lower
term used with leading lights to describe the position of the light on the lead as viewed from seaward.
15
moire effect
a short range (up to 2km) type of directional light. Sodium lighting gives a yellow background to a screen on which a vertical black line will be seen by an observer on the centre line.
16
emergency light
a light available as a backup to a main light which will be illuminated should the main light fail.
17
bearing light
a light which enables its approximate bearing to be obtained without the use of a compass.
18
horizontally disposed
a group of lights of identical character and almost identical position, that are disposed horizontally.
19
vertically disposed
a group of lights of identical character and almost identical position, that are disposed vertically.
20
Category of marine farm/culture
Classification of an area of water devoted to the raising, breeding, or production of a specific aquatic animal
categoryOfMarineFarmCulture
CATMFA
Enumeration
crustaceans
hard shelled animals, for example crabs or lobsters.
1
oysters/mussels
edible bivalve molluscs.
2
fish
vertebrate cold blooded animal with gills, living in water.
3
seaweed
the general name for marine plants of the Algae class which grow in long narrow ribbons.
4
pearl culture farm
an area where pearls are artificially cultivated.
5
cay
a small insular feature usually with scant vegetation usually of sand or coral. Often applied to smaller coral shoals.
20
Category of military practice area
Classification of area by military use.
categoryOfMilitaryPracticeArea
CATMPA
Enumeration
torpedo exercise area
an area within which exercises are carried out with torpedoes.
2
submarine exercise area
an area within which submarine exercises are carried out.
3
firing danger area
areas for bombing and missile exercises.
4
mine laying practice area
an area within which mine laying exercises are carried out.
5
small arms firing range
an area for shooting pistols, rifles and machine guns etc. at a target.
6
Category of mooring/warping facility
A place or structure to which a vessel can be secured
categoryOfMooringWarpingFacility
CATMOR
Enumeration
dolphin
a post or group of posts, which may support a deck, used for mooring or warping a vessel.
1
deviation dolphin
a post or group of posts, which a vessel may swing around for compass adjustment.
2
bollard
small shaped post, mounted on a wharf or dolphin used to secure ship's lines.
3
tie-up wall
a tie-up wall is a section of wall designated for tying-up vessels awaiting transit. Bollards and mooring devices are available for both large and small ships.
4
post or pile
a long heavy timber or section of steel, wood, concrete, etc., forced into the seabed to serve as a mooring facility.
5
chain/wire/cable
a connection between two independent objects e.g. a buoy and pile or between two buoys used as a mooring facility.
6
mooring buoy
a buoy secured to the bottom by permanent moorings with means for mooring a vessel by use of its anchor chain or mooring lines.
7
Category of navigation line
Classification of route guidence given to vessels
categoryOfNavigationLine
CATNAV
Enumeration
clearing line
a straight line that marks the boundary between a safe and a dangerous area or that passes clear of a navigational danger.
1
transit line
a line passing through one or more fixed marks.
2
leading line bearing a recommended track
a line passing through one or more clearly defined objects, along the path of which a vessel can approach safely up to a certain distance off.
3
Category of obstruction
Classification of objects that impead movement
categoryOfObstruction
CATOBS
Enumeration
snag/stump
a tree, branch or broken pile embedded in the ocean floor, river or lake bottom and not visible on the surface, forming thereby a hazard to vessels.
1
wellhead
a submarine structure projecting some distance above the seabed and capping a temporarily abandoned or suspended oil or gas well.
2
diffuser
a structure on an outfall through which liquids are discharged. The structure will usually project above the level of the outfall and can be an obstruction to navigation.
3
crib
a permanent structure set in the water, framed with wooden beams and filled with rocks or boulders. They are used to anchor log booms or support other constructions, e.g. submerged outfalls, diffusers etc. They may always be dry, submerged or cover and uncover.
4
fish haven
areas established by private interests, usually sport fishermen, to simulate natural reefs and wrecks that attract fish. The reefs are constructed by dumping assorted junk in areas which may be of very small extent or may stretch a considerable distance along a depth contour.
5
foul area
an area of numerous unidentified dangers to navigation. The area serves as a warning to the mariner that all dangers are not identified individually and that navigation through the area may be hazardous. Commonly used to encode areas behind danger lines on navigation charts.
6
foul ground
areas over which it is safe to navigate but which should be avoided for anchoring, taking the ground or ground fishing.
7
ice boom
floating barriers, anchored to the bottom, used to deflect the path of floating ice in order to prevent the obstruction of locks, intakes, etc., and to prevent damage to bridge piers and other structures.
8
ground tackle
equipment such as anchors, concrete blocks, chains and cables, etc., used to position floating structures such as trot and mooring buoys etc.
9
boom
a floating barrier used to protect a river or harbour mouth or to create a sheltered area for storage purposes.
10
Fishing net
a piece of open-meshed material made of twine, cord, or somthing similar, used for catching fish
11
Wave energy device
A device to extract energy from the surface motion of ocean waves or from pressure fluctuations below the surface.
12
Subsurface ocean data acqusition system
Ocean Data Acquisition System
13
Artificial reef
A reef made of artificial materials to attract sea life.
14
Template
N/A
15
Manifold
N/A
16
Submerged pingo
a hill of soil-covered ice pushed up by hydrostatic pressure in an area of permafrost that is located underwater.
17
Remains of a platform
The distributed remains of a platform
18
Scientific Instrument
An instrument used for scientific purposes
19
Underwater turbine
any of various machines having a rotor, usually with vanes or blades, driven by the pressure, momentum, or reactive thrust of a moving fluid, as steam, water, hot gases, or air, either occurring in the form of free jets or as a fluid passing through and entirely filling a housing around the rotor and is located underwater
20
Category of offshore platform
Classification of an offshore raised structure
categoryOfOffshorePlatform
CATOFP
Enumeration
oil derrick/rig
a temporary mobile structure, either fixed or floating, used in the exploration stages of oil and gas fields.
1
production platform
a term used to indicate a permanent offshore structure equipped to control the flow of oil or gas. It does not include entirely submarine structures.
2
observation/research platform
a platform from which one's surroundings or events can be observed, noted or recorded such as for scientific study.
3
articulated loading platform (ALP)
a metal lattice tower, buoyant at one end and attached at the other by a universal joint to a concrete filled base on the sea bed. The platform may be fitted with a helicopter platform, emergency accommodation and hawser/hose retrieval.
4
single anchor leg mooring (SALM)
a rigid frame or tube with a buoyancy device at its upper end , secured at its lower end to a universal joint on a large steel or concrete base resting on the sea bed, and at its upper end to a mooring buoy by a chain or wire.
5
mooring tower
a platform secured to the sea bed and surmounted by a turntable to which ships moor.
6
artificial island
a man-made structure usually built for the exploration or exploitation of marine resources, marine scientific research, tidal observations, etc.
7
floating production, storage and offloading vessel (FPSO)
an offshore oil/gas facility consisting of a moored tanker/barge by which the product is extracted, stored and exported.
8
accommodation platform
a platform used primarily for eating, sleeping and recreation purposes.
9
navigation, communication and control buoy (NCCB)
a floating structure with control room, power and storage facilities, attached to the sea bed by a flexible pipeline and cables.
10
Floating oil tank
N/A
11
Category of offshore production area
An area where offshore production occurs
categoryOfOffshoreProductionArea
Enumeration
Offshore wind farm
A collection of wind motors that are collected and are organized as a single power generation unit.
1
Wave farm
A collection of collocated devices which harness wave energy and are organized as a single power generation unit.
2
Current farm
A collection of collocated devices which harness tidal energy and are organized as a single power generation unit.
3
Tank farm
A collection of collocated large-capacity tanks in which petroleum, natural gas, or liquid petrochemicals are stored.
4
Seabed material extraction area
An area in which materials forming, or under, the seabed are removed
5
Category of oil barrier
Classification of barriers used to prevent the unwanted spread of oil across the sea surface.
categoryOfOilBarrier
CATOLB
Enumeration
oil retention (high pressure pipe)
a pipe with holes from which air blows. When the air bubbles reach the surface they form a barrier which prevents the spread of oil.
1
floating oil barrier
a floating tube shaped structure, with a curtain (2 metre) hanging under it, below the surface, which prevents the spread of oil.
2
Category of pile
Classification of pile, driven into the earth as a foundation or support for a structure
categoryOfPile
CATPLE
Enumeration
stake
an elongated wood or metal pole embedded in the bottom to serve as a marker or support.
1
post
a vertical piece of timber, metal or concrete forced into the earth or sea bed.
3
tripodal
a single structure comprising 3 or more piles held together (sections of heavy timber, steel or concrete), and forced into the earth or sea bed.
4
Piling
A number of piles, usually in a straight line, and usually connected or bolted together
5
Area of piles
A number of piles, usually in a straight line, but not connected by structural members
6
pipe
a hollow cylinder of metal, wood, or other material, used for the conveyance of water, gas, steam, petroleum, etc.
7
Category of pilot boarding place
categoryOfPilotBoardingPlace
CATPIL
Enumeration
boarding by pilot-cruising vessel
pilot boards from a cruising vessel.
1
boarding by helicopter
pilot boards by helicopter which comes out from the shore.
2
pilot comes out from shore
pilot boards from a vessel which comes out from the shore on request.
3
Category of pipeline/pipe
Classsification of a pipe systems use
categoryOfPipelinePipe
CATPIP
Enumeration
outfall pipe
a pipe (generally a sewer or drainage pipe) discharging in to the sea or a river.
2
intake pipe
a pipe taking water from a river or other body of water, to drive a mill or supply a canal, waterworks, etc.
3
bubbler system
a submerged pipe from which warm water bubbles, preventing the surrounding water from freezing.
5
supply pipe
a pipe used for supplying of gas or liquid product.
6
Category of production area
Classification of an area set aside for heavy industry
categoryOfProductionArea
CATPRA
Enumeration
quarry
an excavation in solid rock from which building stone, limestone, etc. is removed.
1
mine
an excavation in the earth for the purpose of extracting earth materials.
2
stockpile
a reserve stock of material, equipment or other supplies.
3
power station area
a stationary plant containing apparatus for large-scale conversion of some form of energy (hydraulic, steam, chemical, nuclear, etc.) into electrical energy.
4
refinery area
a system of process units used to convert crude petroleum into fuels, lubricants and other petroleum-derived products.
5
timber yard
a storage area for wood used for building, carpentry or joinery.
6
factory area
a group of buildings where goods are manufactured.
7
tank farm
an area in which a number of large-capacity storage tanks are located, generally used for crude oil or petroleum products.
8
wind farm
an area in which numerous wind motors are located.
9
slag heap/spoil heap
hill of refuse from a mine, industrial plant etc. on land
10
Production Plant
A plant where production takes place
11
Category of pylon
Classification of the pylon based on the service its supporting.
categoryOfPylon
CATPYL
Enumeration
power transmission pylon/pole
a vertical construction consisting, for example, of a steel framework or of pre-stressed concrete, to support a power transmission cable or line.
1
telephone/telegraph pylon/pole
a pylon or pole used to support a telephone or telegraph line.
2
aerial cableway/sky pylon
a tower or pylon supporting steel cables which convey cars, buckets, or other suspended carrier units.
3
bridge pylon/tower
a tower, abutment or pylon from which a bridge deck is suspended.
4
bridge pier
a support in the form of a pillar or pier for the spans of a bridge.
5
Category of radar station
Classification of radar station based on the services offered.
categoryOfRadarStation
CATRAS
Enumeration
radar surveillance station
a radar station established for traffic surveillance.
1
coast radar station
a shore-based station which the mariner can contact by radio to obtain a position.
2
Category of radar transponder beacon
Classification of radar transponder beacon based on fuctionality.
categoryOfRadarTransponderBeacon
CATRTB
Enumeration
ramark, radar beacon transmitting continuously
a radar marker beacon which continuously transmits a signal appearing as a radial line on a radar screen, the line indicating the direction of the beacon. Ramarks are intended primarily for marine use. The name 'ramark' is derived from the words radar marker.
1
racon, radar transponder beacon
a radar beacon which returns a coded signal which provides identification of the beacon, as well as range and bearing. The range and bearing are indicated by the location of the first character received on the radar screen. The name 'racon' is derived from the words radar beacon.
2
leading racon/radar transponder beacon
a radar beacon that may be used (in conjunction with at least one other radar beacon) to indicate a leading line.
3
Category of radio station
Classification of radio services offered by a radio station.
categoryOfRadioStation
A radiobeacon is a radio transmitter which emits a distinctive or characteristic signal on which a bearing may be taken.
CATROS
Enumeration
circular (non-directional) marine or aero-marine radiobeacon
a radio station which need not necessarily be manned, the emissions of which, radiated around the horizon, enable its bearing to be determined by means of the radio direction finder of a ship.
1
directional radiobeacon
a special type of radiobeacon station the emissions of which are intended to provide a definite track for guidance.
2
rotating pattern radiobeacon
a special type of radiobeacon station emitting a beam of waves to which a uniform turning movement is given, the bearing of the station being determined by means of an ordinary listening receiver and a stop watch. Also referred to as a rotating loop radiobeacon.
3
Consol beacon
a type of long range position fixing beacon.
4
radio direction-finding station
a radio station intended to determine only the direction of other stations by means of transmission from the latter.
5
coast radio station providing QTG service
a radio station which is prepared to provide QTG service, that is to say, to transmit upon request from a ship, a radio signal, the bearing of which can be taken by that ship.
6
aeronautical radiobeacon
a radio beacon designed for aeronautical use.
7
Decca
the Decca Navigator System is a high accuracy, short to medium range radio navigational aid intended for coastal and landfall navigation.
8
Loran C
Loran-C is a low frequency electronic position fixing system using pulsed transmissions at 100 Khz.
9
Differential GPS
a radiobeacon transmitting DGPS correction signals.
10
Toran
Toran is an electronic position fixing system used mainly by aircraft.
11
Omega
Omega is a long-range radio navigational aid which operates within the VLF frequency band. The system comprises eight land based stations.
12
Syledis
Syledis is a ranging position fixing system operating at 420-450MHz over a range of up to 400Km.
13
Chiaka (Chayka)
Chiaka is a low frequency electronic position fixing system using pulsed transmissions at 100 Khz.
14
Radio telephone station
The equipment needed at one station to carry on two way voice communication by radio waves only.
19
AIS base station
N/A
20
Category of recommended track
Classification of track based on defining navigational marks
categoryOfRecommendedTrack
CATTRK
Enumeration
based on a system of fixed marks
a straight route (known as a recommended track, range or leading line), which comprises at least two structures (usually beacons or daymarks) and/or natural features, which may carry lights and/or top-marks. The structures/features are positioned so that when observed to be in line, a vessel can follow a known bearing with safety.
1
not based on a system of fixed marks
a route (known as a recommended track or preferred route) which is not based on a series of structures or features in line.
2
Category of rescue station
Classification of aid station based on life saving equipment
categoryOfRescueStation
CATRSC
Enumeration
rescue station with lifeboat
a place where equipment for saving life at sea is maintained the type of lifeboat may vary from fast, long distance boats to inflatable inshore boats.
1
rescue station with rocket
rocket - a pyrotechnic projectile used for signalling or for life-saving purposes.
2
refuge for ship-wrecked mariners
shelter or protection from danger or distress at sea.
4
refuge for intertidal area walkers
shelter or protection from danger in areas exposed to extreme and sudden tides or tidal streams.
5
lifeboat lying at a mooring
a place where a lifeboat is moored ready for use.
6
aid radio station
a radio station reserved for emergency situations, might also be a public telephone.
7
first aid equipment
a place where first aid equipment is available.
8
Category of restricted area
The official legal status of each kind of restricted area defines the kind of restriction(s), e.g., the restriction for a 'game preserve' may be 'entering prohibited', the restriction for an 'anchoring prohibition area' is 'anchoring prohibited'.
categoryOfRestrictedArea
CATREA
Enumeration
offshore safety zone
the area around an offshore installation within which vessels are prohibited from entering without permission special regulations protect installations within a safety zone and vessels of all nationalities are required to respect the zone.
1
nature reserve
a tract of land managed so as to preserve it's flora, fauna, physical features, etc.
4
bird sanctuary
a place where birds are bred and protected.
5
game reserve
a place where wild animals or birds hunted for sport or food are kept undisturbed for private use.
6
seal sanctuary
a place where seals are protected.
7
degaussing range
an area, usually about two cables diameter, within which ships' magnetic fields may be measured sensing instruments and cables are installed on the sea bed in the range and there are cables leading from the range to a control position ashore.
8
military area
an area controlled by the military in which restrictions may apply.
9
historic wreck area
an area around certain wrecks of historical importance to protect the wrecks from unauthorized interference by diving, salvage or deposition (including anchoring).
10
navigational aid safety zone
an area around a navigational aid which vessels are prohibited from entering.
12
minefield
an area laid and maintained with explosive mines for defence or practice purposes.
14
swimming area
an area in which people may swim and therefore vessel movement may be restricted.
18
waiting area
an area reserved for vessels waiting to enter a harbour.
19
research area
an area where marine research takes place.
20
dredging area
an area where dredging is taking place.
21
fish sanctuary
a place where fish are protected.
22
ecological reserve
a tract of land managed so as to preserve the relation of plants and living creatures to each other and to their surroundings.
23
no wake area
an area in which a vessels' speed must be reduced in order to reduce the size of the wake it produces.
24
swinging area
an area where vessels turn.
25
water skiing area
an area within which people may water ski and therefore vessel movement may be restricted.
26
environmentally sensitive sea area (ESSA)
a generic term which may be used to describe a wide range of areas,
considered sensitive for a variety of environmental reasons.
27
particularly sensitive sea area (PSSA)
an area that needs special protection through action by IMO because of its
significance for regional ecological, socio-economic or scientific reasons and because it may be vulnerable to damage by international shipping activities.
28
Disengagement area
An area near a fairway where vessels can go to clear the way or make an about turn and possibly return to a waiting area when nautical conditions impose it.
29
Port security area
N/A
30
coral sanctuary
a place where coral is protected
31
recreation area
An area within which recreational activities regularly take place and therefore vessel
movement may be restricted.
32
Category of road
Classification of a road based on size
categoryOfRoad
CATROD
Enumeration
motorway
a main road with separate carriageways and limited access, specially constructed and controlled for fast motor traffic.
1
major road
a hard surfaced (metalled) road a main through route.
2
minor road
a secondary road for local traffic.
3
track/path
track - a rough path or way formed by use path - a way or track laid down for walking or made by continual treading.
4
major street
a main road, in an urban area, for through traffic.
5
minor street
a secondary road, in an urban area, for local traffic.
6
crossing
a place where roads, etc. intersect.
7
Category of runway
Classification of runway based on primary aircraft type.
categoryOfRunway
CATRUN
Enumeration
aeroplane runway
a level stretch of land where aeroplanes take of and land.
1
helicopter landing pad
a site on which helicopters may land and take off.
2
Category of sea area
Classification of an area based on its physical characteristics
categoryOfSeaArea
CATSEA
Enumeration
gat
a natural or artificial passage or channel through shoals or steep banks, or across a line of banks lying between two channels.
2
bank
an elevation over which the depth of water is relatively shallow, but normally sufficient for safe surface navigation.
3
deep
in oceanography, an obsolete term which was generally restricted to depths greater than 6,000 m.
4
bay
an indentation in the coastline.
5
trench
a long narrow, characteristically very deep and asymmetrical depression of the sea floor, with relatively steep sides.
6
basin
a depression, characteristically in the deep sea floor, more or less equidimensional in plan and of variable extent.
7
flat
a level tract of land, as the bed of a dry lake or an area frequently uncovered at low tide. Usually in plural.
8
reef
rock lying at or near the sea surface that may constitute a hazard to surface navigation.
9
ledge
a rocky formation continuous with and fringing the shore.
10
canyon
a relatively narrow, deep depression with steep sides, the bottom of which generally has a continuous slope, developed characteristically on some continental slopes.
11
narrows
a navigable narrow part of a bay, strait, river, etc.
12
shoal
an offshore hazard to surface navigation that is composed of unconsolidated material.
13
knoll
a relatively small isolated elevation of a rounded shape.
14
ridge
(a) A long, narrow elevation with steep sides. (b) A long, narrow elevation often separating ocean basins. (c) The linked major mid-oceanic mountain systems of global extent.
15
seamount
a large isolated elevation, greater than 1000m in relief above the sea floor, characteristically of conical form.
16
pinnacle
any high tower or spire-shaped pillar or rock or coral, alone or cresting a summit. It may extend above the surface of the water. It may or may not be a hazard to surface navigation.
17
abyssal plain
an extensive, flat, gently sloping or nearly level region at abyssal depths.
18
plateau
a flat or nearly flat area of considerable extent, dropping off abruptly on one or more sides.
19
spur
a subordinate elevation, ridge or rise projecting outward from a larger feature.
20
shelf
a zone adjacent to a continent (or around an island) and extending from the low water line to a depth at which there is usually a marked increase of slope towards oceanic depths.
21
trough
a long depression of the sea floor characteristically flat bottomed and steep sided and normally shallower than a trench.
22
saddle
a broad pass, resembling in shape a riding saddle, in a ridge or between contiguous seamounts.
23
abyssal hills
a tract, on occasion extensive, of low (100-500m) elevations on the deep sea floor.
24
apron
a gently dipping featureless surface, underlain primarily by sediment, at the base of any steeper slope.
25
archipelagic apron
a gentle slope with a generally smooth surface on the sea floor, characteristically found around groups of islands or seamounts.
26
borderland
a region adjacent to a continent, normally occupied by or bordering a shelf, that is highly irregular with depths well in excess of those typical of a shelf.
27
continental margin
the zone, generally consisting of shelf, slope and rise, separating the continent from the abyssal plain or deep sea floor.
28
continental rise
a gentle slope rising from the oceanic depths towards the foot of a continental slope.
29
escarpment
an elongated and comparatively steep slope separating or gently sloping areas.
30
fan
a relatively smooth, fan-like, depositional feature normally sloping away from the outer termination of a canyon or canyon system.
31
fracture zone
an extensive linear zone of irregular topography of the sea floor, characterized by steep-sided or asymmetrical ridges, troughs or escarpments.
32
gap
a narrow break in a ridge or a rise.
33
guyot
a seamount having a comparatively smooth flat top.
34
hill
a small isolated elevation (see also abyssal hills).
35
hole
a local depression, often steep sided, of the sea floor.
36
levee
a depositional embankment bordering a canyon, valley or deep-sea channel.
37
median valley
the axial depression of the mid-oceanic ridge system.
38
moat
an annular depression that may not be continuous, located at the base of many seamounts, islands and other isolated elevations.
39
mountains
a large and complex grouping of ridges and seamounts.
40
peak
a prominent elevation either pointed or of a very limited extent across the summit.
41
province
a region identifiable by a group of similar physiographic features whose characteristics are markedly in contrast with surrounding areas.
42
rise
(a) A broad elevation that rises gently and generally smoothly from the sea floor. (b) The linked major mid-oceanic mountain systems of global extent.
43
sea channel
a continuously sloping, elongated narrow depression commonly found in fans or abyssal plains and customarily bordered by levees on one or both sides.
44
seamount chain
several seamounts in linear or orcuate alignment.
45
shelf-edge
a narrow zone at the seaward margin of a shelf along which is a marked increase of slope.
46
sill
a sea floor barrier of relatively shallow depth restricting water movement between basins.
47
slope
the slope seaward from the shelf edge to the upper edge of a continental rise or the point where there is a general reduction in slope.
48
terrace
a relatively flat horizontal or gently inclined surface, sometimes long and narrow, which is bounded by a steeper ascending slope on one side and by a steeper descending slope on the opposite side.
49
valley
a relatively shallow, wide depression, the bottom of which usually has a continuous gradient. This term is generally not used for features that have canyon-like characteristics for a significant portion of their extent.
50
canal
an artificial water course used for navigation.
51
lake
a large body of water entirely surrounded by land.
52
river
a relatively large natural stream of water.
53
reach
a straight section of a river, especially a navigable river between two bends or an arm of the sea extending into the land
54
Intertidal cay
A small low island in an intertidal area
55
Submarine volcano
a vent in the earth's crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals that is located underwater
56
Category of shoreline construction
Classification of shoreline construction based on use
categoryOfShorelineConstruction
CATSLC
Enumeration
breakwater
a structure protecting a shore area, harbour, anchorage, or basin from waves.
1
groyne (groin)
a low artificial wall-like structure of durable material extending from the land to seaward for a particular purpose, such as to prevent coast erosion
2
mole
a form of breakwater alongside which vessels may lie on the sheltered side only in some cases it may lie entirely within an artificial harbour, permitting vessels to lie along both sides.
3
pier (jetty)
a long, narrow structure extending into the water to afford a berthing place for vessels, to serve as a promenade, etc.
4
promenade pier
a pier built only for recreational purposes.
5
wharf (quay)
a structure serving as a berthing place for vessels.
6
training wall
a wall or bank, often submerged, built to direct or confine the flow of a river or tidal current, or to promote a scour action.
7
rip rap
A layer of broken rock, cobbles, boulders, or fragments of sufficient size to resist the erosive forces of flowing water and wave action.
8
revetment
facing of stone or other material, either permanent or temporary, placed along the edge of a stream, river or canal to stabilize the bank and to protect it from the erosive action of the stream.
9
sea wall
an embankment or wall for protection against waves or tidal action along a shore or water front.
10
landing steps
steps at the shoreline as the connection between land and water on different levels.
11
ramp
a sloping structure that can either be used, as a landing place, at variable water levels, for small vessels, landing ships, or a ferry boat, or for hauling a cradle carrying a vessel, which may include rails.
12
slipway
the prepared and usually reinforced inclined surface on which keel- and bilge-blocks are laid for supporting a vessel under construction.
13
fender
a protective structure designed to cushion the impact of a vessel and prevent damage.
14
solid face wharf
a wharf consisting of a solid wall of concrete, masonry, wood etc., such that the water cannot circulate freely under the wharf. The type of construction affects ship-handling for example, a solid face wharf may give shelter from tidal streams, but under certain circumstances a cusion of water may build up between such a wharf and a ship attempting to berth at it, causing difficulties in ship handling.
15
open face wharf
a wharf supported on piles or other structures which allow free circulation of water under the wharf.
16
log ramp
an inclined plane used to dump logs into the water for transport, or to haul logs out of the water for processing.
17
Swimming facility
An artificial pool or swimming enclosure, especially one in the open air, which may be
constructed of wire mesh or heavy netting supported by cables, buoys or piles, for swimming in.
20
Category of signal station, traffic
Classification of station based on the traffic service provided
categoryOfSignalStationTraffic
CATSIT
Enumeration
port control
a signal station for the control of vessels within a port.
1
port entry and departure
a signal station for the control of vessels entering or leaving a port.
2
International Port Traffic
a signal station displaying International Port Traffic signals.
3
berthing
a signal station for the control of vessels when berthing.
4
dock
a signal station for the control of vessels entering or leaving a dock.
5
lock
a signal station for the control of vessels entering or leaving a lock.
6
flood barrage
a signal station for the control of vessels wishing to pass through a flood control barrage.
7
bridge passage
a signal station for the control of vessels wishing to pass under a bridge.
8
dredging
a signal station indicating when dredging is in progress.
9
traffic control light
visual signal lights placed in a waterway to indicate to shipping the movements authorised at the time at which they are shown.
10
Category of signal station, warning
Classification of station based on the warning service provided
categoryOfSignalStationWarning
CATSIW
Enumeration
danger
a signal or message warning of the presence of a danger to navigation.
1
maritime obstruction
a signal or message warning of the presence of a maritime obstruction.
2
cable
a signal or message warning of the presence of a cable.
3
military practice
a signal or message warning of activity in a military practice area.
4
distress
a station that may receive or transmit distress signals.
5
weather
a visual signal displayed to indicate a weather forecast.
6
storm
a signal or message conveying information about storm conditions.
7
ice
a signal or message conveying information about ice conditions.
8
time
an accurate signal marking a specified time or time interval. It is used primarily for determining errors of timepieces. Such signals are usually sent from an observatory by radio or telegraph, but visual signals are used at some ports.
9
tide
a signal or message conveying information on tidal conditions in the area in question.
10
tidal stream
a signal or message conveying information on condition of tidal currents in the area in question.
11
tide gauge
a device for measuring the height of tide. A graduated staff in a sheltered area where visual observations can be made or it may consist of an elaborate recording instrument making a continuous graphic record of tide height against time. Such an instrument is usually actuated by a float in a pipe communicating with the sea through a small hole which filters out shorter waves.
12
tide scale
a visual scale which directly shows the height of the water above chart datum or a local datum.
13
diving
a signal or message warning of diving activity
14
water level gauge
a device for measuring and conveying information about the water level (non-tidal) in the area in question.
15
Category of silo/tank
Classification based on the product
categoryOfSiloTank
CATSIL
Enumeration
silo in general
a generally cylindrical tower used for storing fodder or grain.
1
tank in general
a fixed structure for storing liquids.
2
grain elevator
a storage building for grain. Usually a tall frame, metal or concrete structure with an especially compartmented interior.
3
water tower
a tower with an elevated container used to hold water.
4
Category of slope
Classification of a stretch of ground forming a natural or artificial incline
categoryOfSlope
CATSLO
Enumeration
cutting
an excavation through high ground for a road, canal, etc.
1
embankment
an artificial elevation constructed from earth, stone, etc. carrying a road, railway or similar or serving to dam water.
2
dune
a mound, ridge or hill of drifted material on the sea coast or in a desert.
3
hill
a small isolated elevation, smaller than a mountain.
4
pingo
a dome-shaped hill formed in a permafrost area when the hydrostatic pressure of freezing ground water causes the upheaval of a layer of frozen ground.
5
cliff
land rising abruptly for a considerable distance above the water or surrounding land.
6
scree
rocky debris on the side or at the foot of a mountain forming a steep stony slope.
7
Category of small craft facility
Classification of services and facilities for the small craft user
categoryOfSmallCraftFacility
CATSCF
Enumeration
visitor's berth
a berth set aside for the use of visiting vessels.
1
nautical club
a club for mariners generally associated with other small craft facilities.
2
boat hoist
a hoist for lifting boats out of the water.
3
sailmaker
a place where sails are made or may be taken for repair.
4
boatyard
a place on shore where boats may be built, stored and repaired.
5
public inn
a public house providing food, drink and accommodation.
6
restaurant
a commercial establishment serving food.
7
chandler
a dealer in ships' supplies.
8
provisions
a place where food and other such supplies are available.
9
doctor
a place where a doctor is available to provide medical attention.
10
pharmacy
a place where medical drugs are dispensed.
11
water tap
a place where fresh water is available.
12
fuel station
a place where fuel is available.
13
electricity
a place where a connection to an electrical supply is available.
14
bottle gas
a place where bottled gas is available.
15
showers
a place where showers are available.
16
launderette
a place where there are facilities for washing clothes.
17
public toilets
a place where toilets are available for public use.
18
post box
a place where mail may be posted.
19
public telephone
a place where a telephone is available for public use.
20
refuse bin
a place where refuse may be dumped.
21
car park
a place where cars may be parked.
22
parking for boats and trailers
a place on shore where boats and/or trailers may be parked.
23
caravan site
a place where caravans may be parked or where caravan accommodation is provided.
24
camping site
a place where visitors may pitch tents and camp.
25
sewerage pump-out station
a place where sewerage may be pumped off a vessel.
26
emergency telephone
a place where a telephone is available for emergency use only.
27
landing/launching place for boats
a place where boats may be landed or launched.
28
visitors mooring
a mooring set aside for the use of visiting vessels.
29
scrubbing berth
a place where vessels may berth for the purpose of careening.
30
picnic area
a place where people may go to eat a picnic.
31
mechanics workshop
a place where mechanical repairs can be undertaken to engines or other vessel equipment.
32
guard and/or security service
a place where a vessel is patrolled by a security service or stored in a secure lockup.
33
Category of special purpose mark
Classification of an aid to navigation which signifies some special purpose
categoryOfSpecialPurposeMark
A mark may be a beacon, a buoy, a signpost or may take another form.
CATSPM
Enumeration
firing danger mark
a mark used to indicate a firing danger area, usually at sea.
1
target mark
any object toward which something is directed. The distinctive marking or instrumentation of a ground point to aid its identification on a photograph.
2
marker ship mark
a mark marking the position of a ship which is used as a target during some military exercise.
3
degaussing range mark
a mark used to indicate a degaussing range.
4
barge mark
a mark of relevance to barges.
5
cable mark
a mark used to indicate the position of submarine cables or the point at which they run on to the land.
6
spoil ground mark
a mark used to indicate the limit of a spoil ground
7
outfall mark
a mark used to indicate the position of an outfall or the point at which it leaves the land.
8
ODAS
Ocean Data Acquisition System
9
recording mark
a mark used to record data for scientific purposes.
10
seaplane anchorage mark
a mark used to indicate a seaplane anchorage.
11
recreation zone mark
a mark used to indicate a recreation zone.
12
private mark
a privately maintained mark.
13
mooring mark
a mark indicating a mooring or moorings.
14
LANBY
a large buoy designed to take the place of a lightship where construction of an offshore light station is not feasible.
15
leading mark
aids to navigation or other indicators so located as to indicate the path to be followed. Leading marks identify a leading line when they are in transit.
16
measured distance mark
a mark forming part of a transit indicating one end of a measured distance.
17
notice mark
a notice board or sign indicating information to the mariner.
18
TSS mark
a mark indicating a traffic separation scheme.
19
anchoring prohibited mark
a mark indicating an anchoring prohibited area.
20
berthing prohibited mark
a mark indicating that berthing is prohibited.
21
overtaking prohibited mark
a mark indicating that overtaking is prohibited.
22
two-way traffic prohibited mark
a mark indicating a one-way route.
23
'reduced wake' mark
a mark indicating that vessels must not generate excessive wake.
24
speed limit mark
a mark indicating that a speed limit applies.
25
stop mark
a mark indicating the place where the bow of a ship must stop when traffic lights show red.
26
general warning mark
a mark indicating that special caution must be exercised in the vicinity of the mark.
27
'sound ships siren' mark
a mark indicating that a ship should sound its siren or horn.
28
restricted vertical clearance mark
a mark indicating the minimum vertical space available for passage.
29
maximum vessel's draught mark
a mark indicating the maximum draught of vessel permitted.
30
restricted horizontal clearance mark
a mark indicating the minimum horizontal space available for passage.
31
strong current warning mark
a mark warning of strong currents.
32
berthing permitted mark
a mark indicating that berthing is allowed.
33
overhead power cable mark
a mark indicating an overhead power cable.
34
'channel edge gradient' mark
a mark indicating the gradient of the slope of a dredge channel edge.
35
telephone mark
a mark indicating the presence of a telephone.
36
ferry crossing mark
a mark indicating that a ferry route crosses the ship route often used with a 'sound ship's siren' mark.
37
pipeline mark
a mark used to indicate the position of submarine pipelines or the point at which they run on to the land.
39
anchorage mark
a mark indicating an anchorage area.
40
clearing mark
a mark used to indicate a clearing line.
41
control mark
a mark indicating the location at which a restriction or requirement exists.
42
diving mark
a mark indicating that diving may take place in the vicinity.
43
refuge beacon
a mark providing or indicating a place of safety.
44
foul ground mark
a mark indicating a foul ground.
45
yachting mark
a mark installed for use by yachtsmen.
46
heliport mark
a mark indicating an area where helicopters may land.
47
GPS mark
a mark indicating a location at which a GPS position has been accurately determined.
48
seaplane landing mark
a mark indicating an area where sea-planes land.
49
entry prohibited mark
a mark indicating that entry is prohibited.
50
work in progress mark
a mark indicating that work (generally construction) is in progress.
51
mark with unknown purpose
a mark whose detailed characteristics are unknown.
52
wellhead mark
a mark indicating a borehole that produces or is capable of producing oil or natural gas.
53
channel separation mark
a mark indicating the point at which a channel divides separately into two channels.
54
marine farm mark
a mark indicating the existence of a fish, mussel, oyster or pearl farm/ culture.
55
artificial reef mark
a mark indicating the existence or the extent of an artificial reef.
56
Ice mark
A mark, used year round, that may be submerged when ice passes through the area
57
Nature reserve mark
A mark used to define the boundary of a nature reserve.
58
Fish Aggregating Device (FAD) mark
N/A
59
Wreck mark
A mark used to indicate the existence of a wreck
60
Customs mark
N/A
61
Causeway mark
A mark used to indicate the existence of a causeway.
62
Wave recorder
N/A
63
jetski prohibited
A mark indicating a jetski prohibited area
64
Category of Temporal Variation
An assessment of the likelihood of change within an area since last
survey.
categoryOfTemporalVariation
Enumeration
Extreme event
No new hydrographic survey conducted after an event (e.g. hurricane, earthquake,
volcanic eruption, landslide, etc), which is considered likely to have changed the seafloor significantly.
1
Likely to change
Continuous or frequent change (e.g. river siltation, sand waves, seasonal storms, ice
bergs, etc).
2
Likely to change but significant shoaling no expected
Likely to change but significant shoaling unlikely
3
Unlikely to change
Significant change to the seafloor is not expected.
4
Unassessed
Temporal variation not assessed or cannot be determined.
5
Category of Tidal stream
Classification of the alternating horizontal movement of water associated with the rise and fall of the tide caused by tide producing forces.
categoryOfTidalStream
CAT_TS
Enumeration
flood stream
the horizontal movement of water associated with the rising tide.
1
ebb stream
the horizontal movement of water associated with falling tide.
2
Other tidal flow
any other horizontal movement of water associated with tides, e.g., rotary flow.
3
Category of Traffic Separation Scheme
International classification of traffic separation scheme
categoryOfTrafficSeparationScheme
CATTSS
Enumeration
IMO - adopted
a defined Traffic Separation Scheme that has been adopted as an IMO routing measure.
1
not IMO - adopted
a defined Traffic Separation Scheme that has not been adopted as an IMO routing measure.
2
Category of vegetation
Classification of the plant life of an area or region
categoryOfVegetation
CATVEG
Enumeration
grass
vegetation belonging to a group of plants with green blades that are eaten by cattle, sheep, etc.
1
bush
a shrub or clump of shrubs with stems of moderate length.
3
deciduous wood
a wood with trees that shed their leaves annually.
4
coniferous wood
a wood with evergreen trees of a group usually bearing cones, including yews, cedars and redwoods.
5
Wood in general (inc mixed wood)
Growing trees densely occupying a tract of land
6
mangroves
one of several genera of tropical trees or shrubs which produce many prop roots and grow along low lying coasts into shallow water.
7
mixed crops
a mixture of arable crops.
10
reed
any of various water or marsh plants with a firm stem.
11
moss
any small cryptogamous plant of the class Musci, growing in dense clusters on the surface of the ground in bogs, on trees, stones, etc.
12
tree in general
a woody perennial plant, having a self supporting main stem or trunk.
13
evergreen tree
a tree which keeps its foliage all year round.
14
coniferous tree
a cone-bearing, needle-leaved or scale-leaved evergreen tree.
15
palm tree
a tropical or sub-tropical tree, shrub or vine having a tall, unbranched, columnar trunk. The trunk is crowned by a tuft or large, pleated fan or feather shaped leaves with stout sheathing and often prickly petioles (stalks), the persistent bases of which frequently clothe the trunk.
16
nipa palm tree
a rare palm tree with regular branching involving equal or sub-equal division of the apex that results in forking.
17
casuarina tree
a tree characterized by slender, green, often drooping branches that are deeply grooved and that bear, at intervals, whorls of tine leaves.
18
eucalypt tree
an instance of a large genus of mostly very large trees (90 metres).
19
deciduous tree
a tree which sheds its foliage for part of the year (generally in winter).
20
mangrove tree
one of several genera of tropical trees or shrubs which produce many prop roots and grow along low lying coasts in to shallow waters.
21
filao tree
a variety of tropical or sub-tropical tree.
22
Category of water turbulence
Classification of an unstable sea state
categoryOfWaterTurbulence
CATWAT
Enumeration
breakers
waves breaking on the shore, over a reef, etc. Breakers may be roughly classified into three kinds, although the categories may overlap: spilling breakers break gradually over a considerable distance plunging breakers tend to curl over and break with a crash and surging breakers peak up, but then instead of spilling or plunging they surge up on the beach face. The French word 'brisant' is also used for the obstacle causing the breaking of the wave.
1
eddies
circular movements of water usually formed where currents pass obstructions, between two adjacent currents flowing counter to each other, or along the edge of a permanent current.
2
overfalls
short, breaking waves occurring when a strong current passes over a shoal or other submarine obstruction or meets a contrary current or wind.
3
tide rips
small waves formed on the surface of water by the meeting of opposing tidal currents or by a tidal current crossing an irregular bottom.
4
bombora
a wave that forms over a submerged offshore reef or rock, sometimes (in very calm weather or at high tide) nearly swelling but in other conditions breaking heavily and producing a dangerous stretch of broken water the reef or rock itself.
5
Category of weed/kelp
Classification of marine vegetation
categoryOfWeedKelp
CATWED
Enumeration
kelp
a giant plant sometimes 60 metres long with no roots, it is anchored by hold-fasts or tendrils up to 10 metres long, that cling to rock. Gas filled bubbles on fronds act as floats keeping the kelp just below the surface.
1
seaweed
general name for marine plants of the algae class which grow in long narrow ribbons.
2
seagrass
any grasslike marine alga. Eelgrass is one of the best known seagrasses.
3
sargasso
a certain type of sea weed, or more generally, a large floating mass of this sea weed.
4
Category of wreck
Classification of a wrecked or ruined ship.
categoryOfWreck
CATWRK
Enumeration
non-dangerous wreck
a wreck which is not considered to be dangerous to surface navigation.
1
dangerous wreck
a wreck which is considered to be dangerous to surface navigation.
2
distributed remains of wreck
(foul ground) an area over which it is safe to navigate but which should be avoided for anchoring, taking the ground or ground fishing.
3
wreck showing mast/masts
wreck of which only the mast(s) is visible at the sounding datum indicated.
4
wreck showing any portion of hull or superstructure
wreck of which any portion of the hull or superstructure is visible at the sounding datum indicated.
5
Colour
The property possessed by an object of producing different sensations on the eye as a result of the way it reflects or emits light.
colour
COLOUR
Enumeration
white
1
black
2
red
3
green
4
blue
5
yellow
6
grey
7
brown
8
amber
9
violet
10
orange
11
magenta
12
pink
13
Colour pattern
A regular repeated design containing more than one colour
colourPattern
COLPAT
Enumeration
horizontal stripes
straight bands or stripes of differing colours painted horizontally.
1
vertical stripes
straight bands or stripes of differing colours painted vertically.
2
diagonal stripes
straight bands or stripes of differing colours painted diagonally (ie not horizontally or vertically).
3
squared
often referred to as checker plate, where alternate colours are used to create squares similar to a chess or draught board. The pattern may be straight or diagonal.
4
stripes (direction unknown)
straight bands or stripes of differing colours painted in an unknown direction.
5
border stripe
a band or stripe of colour which is displayed around the outer edge of the object, which may also form a border to an inner pattern or plain colour.
6
Single colour
One solid colour of uniform coverage
7
rectagle
A four-sided shape that is made up of two pairs of parallel lines and that has four right angles, on a different coloured background.
8
triangle
a shape that is made up of three lines and three angles, on a different coloured background.
9
Communication channel
A channel number assigned to a specific radio frequency, frequencies or frequency band.
communicationChannel
The expected input is the specific VHF-Channel. The attribute 'communication channel' encodes the various VHF-channels used for communication.
COMCHA
StructuredText
Condition
The various conditions of buildings and other constructions.
condition
The default 'condition' should be considered to be completed, undamaged and working normally. This attribute should, therefore, only be used to indicate objects whose condition is anything other than 'normal'.
CONDTN
Enumeration
under construction
a structure that is in the process of being built.
1
ruined
a structure in a decayed or deteriorated condition resulting from neglect or disuse, or a damaged structure in need of repair.
2
under reclamation
an area of the sea that is being reclaimed as land, usually by the dumping of earth and other material.
3
wingless
a windmill or windmotor from which the turbine blades are missing.
4
planned construction
an area where a future construction is planned.
5
contact instructions
Instructions provided on how to contact a particular person, organisation or service.
contactInstructions
CONINS
Text
Data assessment
The categorisation of the assessment level of bathymetric data for an
area.
dataAssessment
Enumeration
assessed
The quality of the bathymetric data has been assessed.
1
Oceanic
The quality of oceanic bathymetric data has been assessed or is not required.
2
Unassessed
Not having been assessed
3
Date disused
The date that an entity ceases to be used.
dateDisused
Date
Date end
The latest date on which an object (e.g., a buoy) will be present.
dateEnd
This attribute is to be used to indicate the removal or cancellation of an object at a specific date in the future. See also 'periodic date end' (PEREND).
DATEND
StructuredText
Date fixed
The date of an event.
dateFixed
Date
Date start
The earliest date on which an object (e.g., a buoy) will be present.
dateStart
This attribute is to be used to indicate the deployment or implementation of an object at a specific date in the future. See also 'periodic date start' (PERSTA).
DATSTA
StructuredText
Date variable
A day which is not fixed in the Gregorian calendar.
dateVariable
The string encodes a recurring day each year that is not fixed in the Gregorian calendar.
E.g. "Fourth Thursday in November";
"Easter Sunday"
Text
Default clearance depth
The depth value determined for an underwater hazard of unknown
depth, based on the depth of the surrounding area.
defaultClearanceDepth
Integer
Depth range maximum value
The maximum (deepest) value of a depth range.
depthRangeMaximumValue
Where the area dries, the value is negative. The unit of measure is defined in the DUNI subfield of the DSPM record or in the DUNITS attribute of the M_UNIT meta object class, e.g., metre (m). The resolution is 0.1 m or 0.1 fm or 0.1 ft.
DRVAL2
Real
Depth range minimum value
The minimum (shoalest) value of a depth range.
depthRangeMinimumValue
Where the area dries, the value is negative. The unit of measure is defined in the DUNI subfield of the DSPM record or in the DUNITS attribute of the M_UNIT meta object class, e.g., metre (m). The resolution is 0.1 m or 0.1 fm or 0.1 ft.
DRVAL1
Real
Display Name
A statement expressing if a feature name is to be displayed in certain system
display settings or not.
displayName
Where it is allowable to encode multiple instances of feature name for a single feature instance, only one
feature name instance can indicate that the name is to be displayed (display name set to True).
Boolean
Distance of Unit Measurement
a specified amount of a quantity, as of length, by comparison with which any other quantity of the same kind is measured or estimated
distanceOfUnitMeasurement
Enumeration
Metres
The fundamental unit of length in the metric system.
1
Kilometers
a unit of length, the common measure of distances equal to 1000 meters, and equivalent to 3280.8 feet or 0.621 mile.
3
Statute miles
The legal name for a mile
4
Nautical miles
a unit of distance used chiefly in navigation, equal to 6080.20 feet (1853.25 meters) in the U.S., now replaced by the international nautical mile.
5
Feet
feet
6
Dredged Date
The date that dredging occurred.
dredgedDate
The attribute dredged date indicates the latest date of dredging (which may be the latest known date if the
dredged area is not maintained), or the date of the latest control survey confirming the depth in a
maintained dredged area.
Date
Elevation
The altitude of the ground level of an object, measured from a specified vertical datum.
elevation
The unit of measure is defined in the HUNI subfield of the DSPM record or in the HUNITS attribute of the M_UNIT meta object class, e.g., metre (m). The resolution is 0.1 m or 0.1 ft.
ELEVAT
Real
Estimated range of transmission
The estimated range of a non-optical electromagnetic transmission.
estimatedRangeOfTransmission
The estimated range (distance) assumes 'in vacuo' transmission and a standard antenna height of 5 metres. Thus it gives a hint to the mariner whether he is likely to receive transmission at a certain distance from an object carrying this attribute.
ESTRNG
Real
Exhibition condition of light
The outward display of the light
exhibitionConditionOfLight
EXCLIT
Enumeration
light shown without change of character
a light shown throughout the 24 hours without change of character.
1
daytime light
a light which is only exhibited by day.
2
fog light
a light which is exhibited in fog or conditions of reduced visibility.
3
night light
a light which is only exhibited at night.
4
Exposition of sounding
Indicates objects with a 'value of sounding' not within the range of depth of the surrounding depth area.
expositionOfSounding
These objects could be a potential danger for navigation.
EXPSOU
Enumeration
within the range of depth of the surrounding depth area
the depth corresponds to the depth range of the surrounding depth area. i.e. the depth is not shoaler than the minimum depth of the surrounding depth area or deeper than the maximum depth of the surrounding depth area.
1
shoaler than the range of depth of the surrounding depth area
the depth is shoaler than the minimum depth of the surrounding depth area.
2
deeper than the range of depth of the surrounding depth area
the depth is deeper than the maximum depth of the surrounding depth area.
3
Flare angle
The angle about which the light flare symbol is rotated to be displayed in ECDIS.
flareAngle
The flare angle is calculated by ENC production software systems.
Integer
Flare Stack
A statement expressing whether an offshore platform has a stack used for
burning-off waste oil or gas or not.
flareStack
Boolean
Flip bearing
The bearing at which text is re-located to the opposite side of a feature when
screen display is oriented away from true north.
flipBearing
Integer
frequency shore station receives
The shore station receiver frequency expressed in kHz to one decimal place. Units: kHz, Resolution: 0.1, Format: XXXXXX
Examples:
4379.1 kHz becomes 043791
13162.8 kHz becomes 131628
frequencyShoreStationReceives
FRQRXV
Integer
frequency shore station transmits
The shore station transmitter frequency expressed in kHz to one decimal place. Units: kHZ, Resolution: 0.1, Format: XXXXXX
Examples:
4379.1 kHz becomes 043791
13162.8 kHz becomes 131628
frequencyShoreStationTransmits
FRQTXM
Integer
Full seafloor coverage achieved
Expression stating if full seafloor coverage has been achieved in the area covered by hydrographic surveys.
fullSeafloorCoverageAchieved
full seafloor coverage achieved applies to both the spatial completeness of feature detection and to the spatial completeness of the measurement of the regular seafloor. The former is further specified by the complex attribute features detected, the latter by the attributes depth range maximum value and depth range minimum value
Boolean
Function
A specific role that describes a feature
function
FUNCTN
Enumeration
harbour-master's office
the office of the local official who has charge of mooring and berthing of vessels, collecting harbour fees, etc.
2
customs office
an office which is charged with enforcing customs regulations.
3
health office
the office which is charged with the administration of health laws and sanitary inspections.
4
hospital
an institution or establishment providing medical or surgical treatment for the ill or wounded.
5
post office
the public department, agency or organisation responsible primarily for the collection, transmission and distribution of mail.
6
hotel
an establishment, especially of a comfortable or luxurious kind, where paying visitors are provided with accommodation, meals and other services.
7
railway station
a building with platforms where trains arrive, load, discharge and depart.
8
police station
the office of the local police force.
9
water-police station
the headquarters of a local water-police force.
10
pilot office
the office or headquarters of pilots the place where the services of a pilot may be obtained.
11
pilot lookout
a distinctive structure on shore from which personnel keep watch upon events at sea or along the coast.
12
bank office
an office for custody, deposit, loan, exchange or issue of money.
13
headquarters for district control
the quarters of an executive officer (director, manager, etc.) with responsibility for an administrative area.
14
transit shed/warehouse
a building or part of a building for storage of wares or goods.
15
factory
a building or buildings with equipment for manufacturing a workshop.
16
power station
a stationary plant containing apparatus for large scale conversion of some form of energy (such as hydraulic, steam, chemical or nuclear energy) into electrical energy.
17
administrative
a building for the management of affairs.
18
educational facility
a building concerned with education (e.g. school, college, university, etc.)
19
church
a building for public Christian worship.
20
chapel
a place for Christian worship other than a parish, cathedral or church, especially one attached to a private house or institution.
21
temple
a building for public Jewish worship.
22
pagoda
a Hindu or Buddhist temple or sacred building.
23
shinto shrine
a building for public Shinto worship.
24
buddhist temple
see pagoda.
25
mosque
a Muslim place of worship.
26
marabout
a shrine marking the burial place of a Muslim holy man.
27
lookout
keeping a watch upon events at sea or along the coast.
28
communication
transmitting and/or receiving electronic communication signals.
29
television
broadcast of television signals.
30
radio
broadcast of radio signals.
31
radar
a method, system or technique of using beamed, reflected, and timed radio waves for detecting, locating, or tracking objects, and for measuring altitudes.
32
light support
supporting a light
33
microwave
broadcasting and receiving signals using microwaves.
34
cooling
dissipating heat.
35
observation
a place from which the surroundings can be observed but at which a watch is not habitually maintained.
36
time ball
a visual time signal in form of a ball
37
clock
visual time signal.
38
control
used to control the flow of air, rail, or marine traffic.
39
airship mooring
a facility to secure an airship.
40
stadium
a large usually unroofed building with tiers of seats for spectators
41
bus station
a location at which buses arrive and from which they depart.
42
Passenger Terminal Building
A building within a terminal for the loading and unloading of passengers.
43
Sea rescue control
A unit responsible for promoting efficient organization of search and rescue services and for coordinating the conduct of search and rescue operations within a search and rescue region.
44
Observatory
A building designed and equipped for making observations of astronomical, meteorological, or other natural phenomena.
45
Ore crusher
A building or structure used to crush ore.
46
Boathouse
a building or shed, usually built partly over water, for sheltering a boat or boats.
47
Pumping Station
A facility to move solids, liquids or gases by means of pressure or suction
48
Height
The value of the vertical distance to the highest point of the object, measured from a specified vertical datum.
height
Height must not be used for floating objects. The unit of measure is defined in the HUNI subfield of the DSPM record or in the HUNITS attribute of the M_UNIT meta object class, e.g., metre (m). The resolution is 0.1 m or 0.1 ft.
HEIGHT
Real
Horizontal clearance lenght
The length of a feature, such as a lock or basin, which is
available for safe navigation. This may, or may not, be the same as the total physical length of the feature.
horizontalClearanceLength
Real
Horizontal clearance value
The width of an object, such as a canal or a tunnel, which is available for safe navigation. This may, or may not, be the same as the total physical width of the object.
horizontalClearanceValue
The unit of measure is defined in the HUNI subfield of the DSPM record or in the HUNITS attribute of the M_UNIT meta object class, e.g., metre (m). The resolution is 0.1 m or 0.1 ft.
HORCLR
Real
Horizontal clearance width
The width of a feature, such as a lock or basin, which is
available for safe navigation. This may, or may not, be the same as the total physical width of the feature.
horizontalClearanceWidth
Real
Horizontal distance uncertainty
The best estimate of the horizontal accuracy of horizontal clearance and distances.
horizontalDistanceUncertainty
The expected input is the radius of the two-dimensional error. The error is assumed to be positive and negative. The plus/minus character shall not be encoded. The unit of measure is defined in the HUNI subfield of the DSPM record or in the HUNITS attribute of the M_UNIT meta object class, e.g., metre (m). The resolution is 0.1 m or 0.1 ft.
HORACC
Real
Horizontal length
A measurement of the longer of two linear axis.
horizontalLength
The unit of measure is defined in the HUNI subfield of the DSPM record or in the HUNITS attribute of the M_UNIT meta object class, e.g., metre (m). The resolution is 0.1 m or 0.1 ft.
HORLEN
Real
Horizontal Position Uncertainty
The best estimate of the accuracy of a position. The expected input is the maximum of the two-dimensional error. The error is assumed to be positive and negative. The plus/minus character shall not be encoded.
horizontalPositionUncertainty
The unit of measure is defined in the PUNI subfield of the DSPM record, e.g., metre (m). The resolution is 0.1 m or 0.1 mm.
POSACC
Real
Horizontal width
A measurement of the shorter of two linear axis.
horizontalWidth
The unit of measure is defined in the HUNI subfield of the DSPM record or in the HUNITS attribute of the M_UNIT meta object class, e.g., metre (m). The resolution is 0.1 m or 0.1 ft.
HORWID
Real
Ice factor
The value of the maximum variation in the vertical clearance of an overhead cable due to an accumulation of ice.
iceFactor
The unit of measure is defined in the HUNI subfield of the DSPM record or in the HUNITS attribute of the M_UNIT meta object class, e.g., metre (m). The resolution is 0.1 m or 0.1 ft.
ICEFAC
Real
In dispute
A statement expresses if an area is in a jurisdictional dispute.
inDispute
Boolean
In the water
An indication if the feature is located in or over navigable water.
inTheWater
A True value is an indication that the feature is to be included in the ECDIS Base Display viewing group.
Boolean
is MRCC
A True value is an indication that the encoded coastguard station performs the function
of a Maritime Rescue and Coordination Centre.
isMRCC
Boolean
Jurisdiction
The jurisdiction applicable to an administrative area.
jurisdiction
JRSDTN
Enumeration
international
involving more than one country covering more than one national area.
1
national
an area administered or controlled by a single nation.
2
national sub-division
an area smaller than the nation in which it lies.
3
language
The method of human communication, either spoken or written, consisting of the use of words in a structured and conventional way.
language
The language is encoded by a character code following ISO 639-3.
Text
Least Depth of detected features measured
Expression stating if the least depth of
detected features in an area was measured.
leastDepthOfDetectedFeaturesMeasured
-A feature in this context is any object, whether manmade or not, projecting above the sea floor, which may be a danger for surface navigation (reference: IHO publication S-44).
- least depth of detected features measured does not describe the least depth of features that were actually detected during a hydrographic survey, but the ability of the survey to detect the least depth of features with a maximum uncertainty as defined in IHO publication S-44.
Boolean
Lifting capacity
The specific safe lifting capacity of an object.
liftingCapacity
LIFCAP
Real
Light characteristic
The typical behaviour associated with the light
lightCharacteristic
A selection of the above characteristics is defined and illustrated diagrammatically in IHO Chart Specifications, M-4, 471.2.
LITCHR
Enumeration
fixed
a signal light that shows continuously, in any given direction, with constant luminous intensity and colour.
1
flashing
a rhythmic light in which the total duration of light in a period is clearly shorter than the total duration of darkness and all the appearances of light are of equal duration.
2
long-flashing
a flashing light in which a single flash of not less than two seconds duration is regularly repeated.
3
quick-flashing
a light exhibiting without interruption very rapid regular alternations of light and darkness.
4
very quick flashing
a flashing light in which flashes are repeated at a rate of not less than 80 flashes per minute but less than 160 flashes per minute.
5
ultra quick flashing
a flashing light in which flashes are repeated at a rate of not less than 160 flashes per minute.
6
isophased
a light with all durations of light and darkness equal.
7
occulting
a rhythmic light in which the total duration of light in a period is clearly longer than the total duration of darkness and all the eclipses are of equal duration.
8
interrupted quick flashing
a quick light in which the sequence of flashes is interrupted by regularly repeated eclipses of constant and long duration.
9
interrupted very quick flashing
a light in which the very rapid alterations of light and darkness are interrupted at regular intervals by eclipses of long duration.
10
interrupted ultra quick flashing
a light in which the ultra quick flashes (160 or more per minute) are interrupted at regular intervals by eclipses of long duration.
11
morse
a rhythmic light in which appearances of light of two clearly different durations are grouped to represent a character or characters in the Morse code.
12
fixed/flash
13
flash/long-flash
14
occulting/flash
15
fixed/long-flash
16
occulting alternating
17
long-flash alternating
18
flash alternating
19
group alternating
20
quick-flash plus long-flash
25
very quick-flash plus long-flash
26
ultra quick-flash plus long-flash
27
alternating
a signal light that shows, in any given direction, two or more colours in a regularly repeated sequence with a regular periodicity.
28
fixed and alternating flashing
29
Light visibility
The specific visibility of a light, with respect to the light's intensity and ease of recognition.
lightVisibility
LITVIS
Enumeration
high intensity
non-marine lights with a higher power than marine lights and visible from well off shore (often 'Aero' lights).
1
low intensity
non-marine lights with lower power than marine lights.
2
faint
a decrease in the apparent intensity of a light which may occur in the case of partial obstructions.
3
intensified
a light in a sector is intensified (i.e. has longer range than other sectors).
4
unintensified
a light in a sector is unintensified (i.e. has shorter range than other sectors).
5
visibility deliberately restricted
a light sector is deliberately reduced in intensity, for example to reduce its effect on a built-up area.
6
obscured
said of the arc of a light sector designated by its limiting bearings in which the light is not visible from seaward.
7
partially obscured
this value specifies that parts of the sector are obscured.
8
visible in line of range
Lights that must in line to be visible
9
Line spacing maximum
The maximum distance between hydrographic survey lines.
lineSpacingMaximum
Integer
Line spacing minimum
The minimum distance between hydrographic survey lines.
lineSpacingMinimum
SDISMN
Integer
linkage
location (address) for on-line access using a URL/URI address or similar addressing scheme. (Adapted from ISO 19115:2014.)
linkage
LINKGE
StructuredText
Magnetic anomaly value minimum
negative value of the deviation from the normal
magnetic variation.
magneticAnomalyValueMinimum
The deviation is assumed to be negative.
Real
Magentic anomoly value maximum
The maximum value of the deviation from the normal magnetic variation.
magneticAnomolyValueMaximum
The deviation is assumed to be positive and negative. The plus/minus character shall not be encoded.
VALLMA
Real
Major light
A statement expressing if a light is considered to be a major light in terms of
ECDIS display in a particular area.
majorLight
The attribute major light is only intended to provide an indication to the ECDIS that the light is considered
to be an important light in terms of its display. As such this is a cartographic attribute to aid the compiler in
determining the most appropriate display for a light; it is not intended to be used as a formal classification
method for lights.
Boolean
Marks navigational - System of
The system of navigational buoyage a region complies with.
marksNavigationalSystemOf
MARSYS
Enumeration
IALA A
navigational aids conform to the International Association of Lighthouse Authorities - IALA A system.
1
IALA B
navigational aids conform to the International Association of Lighthouse Authorities - IALA B system.
2
no system
navigational aids do not conform to any defined system.
9
other system
navigational aids conform to a defined system other than International Association of Lighthouse Authorities -IALA.
10
CEVNI
CEVNI (European Code for Navigation on Inland Waterways) is the European code for rivers, canals land lakes in most of Europe.
11
Maximum Display Scale
The largest intended viewing scale for the data.
maximumDisplayScale
Integer
Maximum permitted draught
The maximum draught of a vessel permitted along a route, in
a channel or dock, at a berth, or over a submerged feature.
maximumPermittedDraught
Real
Measured distance
An accurately defined distance along a course at sea.
measuredDistance
Integer
Measurement distance maximum
The maximum spacing of the principal measurement
lines of a hydrographic survey.
measurementDistanceMaximum
Real
Measurement distance minimum
The minimum spacing of the principal measurement lines
of a hydrographic survey.
measurementDistanceMinimum
Real
Minimum display scale
The smallest intended viewing scale for the data.
minimumDisplayScale
Integer
MMSI Code
The Maritime Mobile Service Identity (MMSI) Code is formed of a series of nine
digits which are transmitted over the radio path in order to uniquely identify ship stations, ship earth stations,
coast stations, coast earth stations, and group calls. These identities are formed in such a way that the
identity or part thereof can be used by telephone and telex subscribers connected to the general
telecommunications network principally to call ships automatically. (Adapted from Appendix 43 of the
International Telecommunications Union Radio Regulations).
mmsiCode
Integer
Moire effect
A short range (up to 2km) type of directional light. Sodium lighting gives a
yellow background to a screen on which a vertical black line will be seen by an observer on the centre line.
(S-57 Edition 3.1, Appendix A ? Chapter 2, Page 2.49, November 2000).
moireEffect
Boolean
Multiplicity known
The number of features of identical character that exist as a co-located
group is or is not known. (Adapted from S-57 Edition 3.1, Appendix A ? Chapter 2, Page 2.150, November
2000).
multiplicityKnown
Boolean
name
The individual name of a feature. (S-57 Edition 3.1, Appendix A ? Chapter 2, Page
2.158, November 2000).
name
Replaces the use of OBJNAM and NOBJNM.
Text
name of resource
name of the online resource (ISO 19115, adapted)
nameOfResource
NAMRES
Text
Nationality
The nationality of the specific object.
nationality
NATION
StructuredText
Nature of construction
The buildings primary construction material
natureOfConstruction
NATCON
Enumeration
masonry
constructed of brick or stone.
1
concreted
constructed of concrete, a material made of sand and gravel that is united by cement into a hardened mass used for roads, foundations, etc.
2
loose boulders
constructed from large stones or blocks of concrete, often placed loosely for protection against waves or water turbulence.
3
hard surface
constructed with a surface of hard material, usually a term applied to roads surfaced with asphalt or concrete.
4
unsurfaced
constructed with no extra protection, usually a term applied to roads not surfaced with a hard material.
5
wooden
constructed from wood.
6
metal
constructed from metal.
7
glass reinforced plastic (GRP)
constructed from a plastic material strengthened with fibres of glass.
8
painted
the application of paint to some other construction or natural feature.
9
framework
constructed from a lattice framework of, often diagonal, intersecting struts.
10
Latticed
a structure of crossed wooden or metal strips usually arranged to form a diagonal pattern of open spaces between the strips.
11
Glass
1. any artificial or natural substance having similar properties and composition, as fused borax, obsidian, or the like.
2. something made of such a substance, as a windowpane.
12
fiberglass
Constructed from fiberglass
13
plastic
Constructed from plastic
14
Nature of surface
The general material which the land surface or the sea bed is composed.
natureOfSurface
Mixed bottom: where the seabed comprises a mixture of material, the main constituent is given first e.g., fine sand with mud and shells would be indicated as 4,1,17. Mud, sand, stone, rock are terms used for the general description. Clay, silt, gravel, pebbles, cobbles are more specific terms related to particle size.
NATSUR
Enumeration
mud
soft, wet earth.
1
clay
(particles of less than 0.002mm) stiff, sticky earth that becomes hard when baked.
2
silt
(particles of 0.002-0.0625mm) when dried on hand will rub off easily.
3
sand
(particles of 0.0625-2.0mm) tiny grains of crushed or worn rock.
4
stone
a general term for rock fragments ranging in size from pebbles and gravel to boulders or a large rock mass.
5
gravel
(particles of 2.0-4.0mm) small stones with coarse sand.
6
pebbles
(particles of 4.0-64.0mm) small stones made smooth and round by being rolled in water.
7
cobbles
(particles of 64.0-256.0mm) stones worn round and smooth by water and used for paving.
8
rock
any formation of natural origin that constitutes an integral part of the lithosphere. The natural occurring material that forms firm, hard, and solid masses.
9
lava
the fluid or semi-fluid matter flowing from a volcano. The substance that results from the cooling of the molten rock. Part of the ocean bed is composed of lava.
11
coral
hard calcareous skeletons of many tribes of marine polyps.
14
shells
exoskeletons of various water dwelling animals.
17
boulder
a rounded rock with diameter of 256 mm or larger.
18
Nature of surface - qualifying terms
The nature of various forms of natural surface materials in terms of their size, morphology and consistency.
natureOfSurfaceQualifyingTerms
NATQUA
Enumeration
fine
falls within the smallest size continuum for a particular nature of surface term.
1
medium
falls within the moderate size continuum for a particular nature of surface term.
2
coarse
falls within the largest size continuum for a particular nature of surface term.
3
broken
fractured or in pieces.
4
sticky
having an adhesive or glue like property.
5
soft
not hard or firm.
6
stiff
not pliant thick, resistant to flow.
7
volcanic
composed of or containing material ejected from a volcano.
8
calcareous
composed of or containing calcium or calcium carbonate.
9
hard
firm usually refers to an area of the sea floor not covered by unconsolidated sediment.
10
Number of features
The number of features of identical character that exist as a co-located
group.
numberOfFeatures
Real
Online Function
online function
onlineFunction
ONLFUN
Enumeration
download
online instructions for transferring data from one storage device or system to another. (ISO 19115:2014)
1
offline access
online instructions for requesting the resource from the provider (ISO 19115:2014)
3
order
online order process for obtaining the resource (ISO 19115:2014).
4
search
online search interface for seeking out information about the resource (ISO 19115:2014).
5
complete metadata
complete metadata provided (ISO 19115:2014).
6
browse graphic
browse graphic provided (ISO 19115:2014).
7
upload
online resource upload capability provided (ISO 19115:2014).
8
email service
online email service provided (ISO 19115:2014)
9
browsing
online browsing provided (ISO 19115:2014)
10
file access
online file access provided (ISO 19115:2014).
11
information
online information about the resource (ISO 19115:2014)
2
Orientation uncertainty
The best estimate of the accuracy of a bearing.
orientationUncertainty
Real
Orientation Value
The angular distance measured from true north to the major axis of the object.
orientationValue
ORIENT
Real
Pictorial representation
Indicates whether a pictorial representation of the object is available.
pictorialRepresentation
The 'pictorial representation' could be a drawing or a photo. The string encodes the file name of an external graphic file (pixel/vector).
PICREP
Text
Product
The various substances which are transported, stored or exploited.
product
PRODCT
Enumeration
oil
a thick, slippery liquid that will not dissolve in water, usually petroleum based in the context of storage tanks.
1
gas
a substance with particles that can move freely, usually a fuel substance in the context of storage tanks.
2
water
a colourless, odourless, tasteless liquid that is a compound of hydrogen and oxygen.
3
stone
a general term for rock fragments.
4
coal
a hard black mineral that is burned as fuel.
5
ore
a solid rock or mineral from which metal is obtained.
6
chemicals
any substance obtained by or used in a chemical process.
7
drinking water
water that is suitable for human consumption.
8
milk
a white fluid secreted by female mammals as food for their young.
9
bauxite
a mineral from which aluminum is obtained.
10
coke
a solid substance obtained after gas and tar have been extracted from coal, used as a fuel.
11
iron ingots
an oblong lump of cast iron metal.
12
salt
sodium chloride obtained from mines or by the evaporation of sea water.
13
sand
tiny grains of crushed or worn rock.
14
timber
wood prepared for use in building or carpentry.
15
sawdust/wood chips
powdery fragments of wood made in sawing timber or coarse chips produced for use in manufacturing pressed board.
16
scrap metal
discarded metal suitable for being reprocessed.
17
liquified natural gas (LNG)
a compressed gas consisting of flammable light hydrocarbons and derived from natural gas.
18
liquified petroleum gas (LPG)
a compressed gas consisting of flammable light hydrocarbons and derived from petroleum.
19
wine
the fermanted juice of grapes.
20
cement
a substance made of powdered lime and clay, mixed with water.
21
grain
a small hard seed, especially that of any cereal plant such as wheat, rice, corn, rye etc.
22
Electricity
Electric charge or current
23
Ice
Frozen water
24
clay
(Particles of less than 0.002mm); stiff, sticky earth that becomes hard when baked.
25
protocol
connection protocol to be used. Example: ftp, http get KVP, http POST, etc. (ISO 19115)
protocol
PROTCL
Text
protocol request
Request used to access the resource. Structure and content depend on the protocol and standard used by the online resource, such as Web Feature Service standard. (ISO 19115, adapted)
protocolRequest
PROTRQ
Text
Quality of horizontal measurement
The degree of reliability attributed to a position
qualityOfHorizontalMeasurement
QUAPOS
Enumeration
surveyed
the position(s) was(were) determined by the operation of making measurements for determining the relative position of points on, above or beneath the earth's surface. Survey implies a regular, controlled survey of any date.
1
unsurveyed
survey data is does not exist or is very poor.
2
inadequately surveyed
position data is of a very poor quality.
3
approximate
a position that is considered to be less than third-order accuracy, but is generally considered to be within 30.5 metres of its correct geographic location. Also may apply to an object whose position does not remain fixed.
4
position doubtful
an object whose position has been reported but which is considered to be doubtful.
5
unreliable
an object's position obtained from questionable or unreliable data.
6
reported (not surveyed)
an object whose position has been reported and its position confirmed by some means other than a formal survey such as an independent report of the same object.
7
reported (not confirmed)
an object whose position has been reported and its position has not been confirmed.
8
estimated
the most probable position of an object determined from incomplete data or data of questionable accuracy.
9
precisely known
a position that is of a known value, such as the position of an anchor berth or other defined object.
10
calculated
a position that is computed from data.
11
Quality of vertical measurement
The reliability of the value of a sounding.
qualityOfVerticalMeasurement
QUASOU
Enumeration
depth known
the depth from chart datum to the bottom is a known value.
1
Depth or least depth unknown
the depth from chart datum to the bottom is unknown.
2
doubtful sounding
a depth that may be less than indicated.
3
unreliable sounding
a depth that is considered to be an unreliable value.
4
no bottom found at value shown
upon investigation the bottom was not found at this depth.
5
least depth known
the shoalest depth over a feature is of known value.
6
least depth unknown, safe clearance at depth shown
the least depth over a feature is unknown, but there is considered to be safe clearance at this depth.
7
value reported (not surveyed)
depth value obtained from a report, but not fully surveyed.
8
value reported (not confirmed)
depth value obtained from a report, which it has not been possible to confirm.
9
maintained depth
the depth at which a channel is kept by human influence, usually by dredging.
10
not regularly maintained
depths may be altered by human influence, but will not be routinely maintained.
11
Radar Conspicuous
Relating to a features ability to be detected by radar
radarConspicuous
CONRAD
Boolean
radarWaveLength
The distance between two successive peaks (or other points of identical phase) on an electromagnetic wave in the radar band of the electromagnetic spectrum.
radarWaveLength
The attribute 'radar transponder beacon wavelength' encodes the specific wavelength at which a radar transponder beacon transmits. Radar transponder beacons generally work on the following wavelengths: 3cm (X) Band, 10cm (S) Band. Nevertheless, wavelengths outside the marine band are used.
RADWAL
StructuredText
Radius
The vector extending from the centre to the periphery of a circular or spherical object.
radius
The unit of measure is defined in the HUNI subfield of the DSPM record or in the HUNITS attribute of the M_UNIT meta object class, e.g., metre (m). The resolution is 0.1 m or 0.1 ft.
RADIUS
Real
Reference Location
Information relating to the point of origin for a measured distance as
indicated on a distance mark.
referenceLocation
Text
Reference year for magnetic variation
The reference calendar year for magnetic variation values.
referenceYearForMagneticVariation
RYRMGV
StructuredText
Regulation Citation
The regulation citation for a feature
regulationCitation
Text
Reported Date
The date that the item was observed, done, or investigated
reportedDate
Date
Restriction
The official legal statute of each kind of restricted area.
restriction
Defines the kind of restriction(s), e.g., the restriction for 'a game preserve' may be 'entry prohibited', the restriction for an 'anchoring prohibition' is 'anchoring prohibited'. The complete information about the restriction(s), actually held in handbooks or other publications, may be encoded by the attribute 'TXTDSC'. A short explanation may be given by the use of the attribute 'INFORM'.
RESTRN
Enumeration
anchoring prohibited
an area within which anchoring is not permitted.
1
anchoring restricted
a specified area designated by appropriate authority, within which anchoring is restricted in accordance with certain specified conditions.
2
fishing prohibited
an area within which fishing is not permitted.
3
fishing restricted
a specified area designated by appropriate authority, within which fishing is restricted in accordance with certain specified conditions.
4
trawling prohibited
an area within which trawling is not permitted.
5
trawling restricted
a specified area designated by appropriate authority, within which trawling is restricted in accordance with certain specified conditions.
6
entry prohibited
an area within which navigation and/or anchoring is prohibited.
7
entry restricted
a specified area designated by appropriate authority, within which navigation is restricted in accordance with certain specified conditions.
8
dredging prohibited
an area within which dredging is not permitted.
9
dredging restricted
a specified area designated by appropriate authority, within which dredging is restricted in accordance with certain specified conditions.
10
diving prohibited
an area within which diving is not permitted.
11
diving restricted
a specified area designated by appropriate authority, within which diving is restricted in accordance with certain specified conditions.
12
no wake
mariners must adjust the speed of their vessels to reduce the wave or wash which may cause erosion or disturb moored vessels.
13
area to be avoided
an IMO designated area to be avoided, defined as a routeing measure.
14
construction prohibited
the erection of permanent or temporary fixed structures or artificial islands is prohibited.
15
discharging prohibited
an area within which discharging or dumping is prohibited
16
discharging restricted
a specified area designated by an appropriate authority, within which discharging or dumping is restricted in accordance with specified conditions.
17
industrial or mineral exploration/development prohibited
an area within which industrial or mineral exploration and development are prohibited.
18
industrial or mineral exploration/development restricted
a specified area designated by an appropriate authority, within which industrial or mineral exploration and development is restricted in accordance with certain specified conditions.
19
drilling prohibited
an area within which excavating a hole on the sea-bottom with a drill is prohibited.
20
drilling restricted
a specified area designated by an appropriate authority, within which excavating a hole on the sea-bottom with a drill is restricted in accordance with certain specified conditions.
21
removal of historical artifacts prohibited
an area within which the removal of historical artifacts is prohibited.
22
cargo transhipment (lightering) prohibited
an area in which cargo transhipment (lightering) is prohibited.
23
dragging prohibited
an area in which the dragging of anything along the bottom, e.g. bottom trawling, is prohibited.
24
stopping prohibited
an area in which a vessel is prohibited from stopping.
25
landing prohibited
an area in which landing is prohibited.
26
speed restricted
an area within which speed is restricted.
27
Swimming prohibited
An area in which swimming is prohibited
38
Scale minimum
The minimum scale at which the object may be used, e.g., for ECDIS presentation.
scaleMinimum
The modulus of the scale is indicated, that is 1:1 250 000 is encoded as 1250000.
SCAMIN
Integer
Scale value Maximum
The largest scale for the range of survey scale as used in source diagram information.
scaleValueMaximum
The modulus of the scale is indicated, that is 1:25 000 is encoded as 25000.
SCVAL1
Integer
Scale value Minimum
The smallest scale for the range of survey scale as used in source diagram information.
scaleValueMinimum
The modulus of the scale is indicated, that is 1:250 000 is encoded as 250000.
SCVAL2
Integer
Sector bearing
A sector is the part of a circle between two straight lines drawn from the centre to the circumference. Sector bearing specifies the limit of the sector.
sectorBearing
A sector is the part of a circle between two straight lines drawn from the centre to the circumference (Advanced Learner's Dictionary, 2nd Edition). The values given to the common limits of adjacent sectors should be identical. The orientation of bearing is from seaward to the central object. This conforms with the method used in 'List of Lights' publications. A generic term such as 'to shore' cannot be used; a specific bearing must be encoded. Where a light sector limit is defined as 'to the shore', it should be encoded using a value that ensures that, when the limit is drawn, it will fall entirely on land.
Real
Sector Extension
distance in screen millimeters (mm) by which a sector is extended
from its origin.
sectorExtension
? The sector extension is calculated by ENC production software systems.
Integer
Sector line length
A sector is the part of a circle between two straight lines drawn from the centre to the circumference. Sector line length specifies the displayed length of the line, in ground units, defining the limit of the sector.
sectorLineLength
A sector is the part of a circle between two straight lines drawn from the centre to the circumference (Advanced Learner's Dictionary, 2nd Edition). The values given to the common limits of adjacent sectors should be identical. The orientation of bearing is from seaward to the central object. This to the method used in 'List of Lights' publications. A generic term such as 'to shore' cannot be used; a specific bearing must be encoded. Where a light sector limit is defined as 'to the shore', it should be encoded using a value that ensures that, when the limit is drawn, it will fall entirely on land.
SECTR2
Integer
Signal duration
The time occupied by a single instance of light/sound or eclipse/silence in a
signal sequence.
signalDuration
Real
Signal frequency
The frequency of a signal.
signalFrequency
SIGFRQ
Integer
Signal generation
The mechanism used to generate a fog signal.
signalGeneration
SIGGEN
Enumeration
automatically
signal generation is initiated by a self regulating mechanism such as a timer or light sensor.
1
by wave action
the signal is generated by the motion of the sea surface such as a bell in a buoy.
2
by hand
the signal is generated by a manually operated mechanism such as a hand cranked siren.
3
by wind
the signal is generated by the motion of air such as a wind driven whistle.
4
radio activated
activated by radio signal
5
call activated
activated by making a call to a manned station
6
Signal group
The number of signals, the combination of signals or the morse character(s) within one period of full sequence.
signalGroup
SIGGRP
StructuredText
Signal period
The time occupied by an entire cycle of intervals of light and eclipse.
signalPeriod
SIGPER
Real
Signal sequence
The sequence of times occupied by intervals of light and eclipse for all 'light characteristics' except for occulting where the sequence of times is occupied by intervals of eclipse and light.
signalSequence
The 'signal sequence' for all 'light characteristics' except for occulting is indicated using a fixed format to encode the value of intervals of light (L) and eclipse (E).
SIGSEQ
StructuredText
Signal Status
The indication of an element of a signal sequence being a period of light or
eclipse.
signalStatus
Enumeration
Lit/Sound
The indication of an element of a signal sequence being a period of light or sound
1
Eclipsed/silent
he indication of an element of a signal sequence being a period of eclipse or silence.
2
significant features detected
A statement expressing if significant features have or have not been detected in the course of a survey.
significantFeaturesDetected
A feature in this context is any object, whether manmade or not, projecting above the sea floor, which may be a danger for surface navigation (reference: IHO publication S-44). Significant features detected does not describe if significant features were actually detected during a hydrographic survey, but whether the survey had the capacity to detect significant features.
Boolean
Size of features detected
The size of detected bathymetric features in an area.
sizeOfFeaturesDetected
Real
source
The publication, document, or reference work from which information comes or is acquired.
source
Text
Speed maximum
Rate of motion. The terms speed and velocity are often used interchangeably, but speed is a scalar, having magnitude only, while velocity is a vector quantity, having both magnitude and direction.
Speed maximum is the maximum rate of travel that can occur.
speedMaximum
Real
Speed minimum
Rate of motion. The terms speed and velocity are often used interchangeably, but speed is a scalar, having magnitude only, while velocity is a vector quantity, having both magnitude and direction.
Speed minimum is the minimum rate of travel that can occur.
speedMinimum
Real
Station Name
The name of the reference tide station with reference water level for tidal
stream panel observations.
stationName
Text
Station Number
The identification number of the reference tide station with reference water
level for tidal stream panel observations.
stationNumber
Integer
Status
The condition of an object at a given instant in time
status
STATUS
Enumeration
permanent
intended to last or function indefinitely.
1
occasional
acting on special occasions happening irregularly.
2
recommended
presented as worthy of confidence, acceptance, use, etc.
3
not in use
no longer used for the purpose intended disused.
4
periodic/intermittent
recurring at intervals.
5
reserved
set apart for some specific use.
6
temporary
meant to last only for a time.
7
private
not in public ownership or operation.
8
mandatory
compulsory enforced.
9
extinguished
no longer lit
11
illuminated
lit by floodlights, strip lights, etc.
12
historic
famous in history of historical interest.
13
public
belonging to, available to, used or shared by, the community as a whole and not restricted to private use.
14
synchronized
occur at a time, coincide in point of time, be contemporary or simultaneous.
15
watched
looked at or observed over a period of time especially so as to be aware of any movement or change.
16
un-watched
usually automatic in operation, without any permanently-stationed personnel to superintend it.
17
existence doubtful
an object that has been reported but has not been definitely determined to exist.
18
on request
when you ask for it
19
drop away
to become lower in level
20
rising
to become higher in level
21
increasing
a rise in amount, number or degree
22
decreasing
to go down to a lower level
23
strong
not easily broken or destroyed
24
good
in a satisfactory condition to use
25
moderately
fairly but not very
26
poor
not as good as it could be or should
27
Buoyed
Marked by buoys
28
Fully operational
entire observation platform is operating in accordance with, or exceeding, manufacturer specifications
29
Partially operational
At least one instrument that is part of an observation platform is not operating to manufacturer specification.
30
Drifting
Floating platform at the mercy of environmental elements, whether intentional or not.
31
Broken
Some or all instruments associated with an observation platform are damaged.
32
Offline
Observation platform is intentionally not reporting an environmental observation.
33
Discontinued
observation station, suite of instruments, or an individual instrument, for a particular location, has been removed and is no longer at the particular location.
34
Manual Observation
Observations made by a human observer.
35
Unknown Status
status of an observation platform, suite of instruments, or individual instrument is not known or unspecified.
36
confirmed
made certain as to truth, accuracy, validity, availability, etc
37
candidate
Item selected for an action
38
under modification
Item that is in the process of being modified
39
Under removal / deletion
Item in the process of being removed or deleted
41
Removed / deleted
Item that has been removed or deleted
42
candidate for modification
Item selected for modification
43
Surrounding depth
The depth value determined for seabed around an underwater hazard of
unknown depth, based on the depth of the surrounding area.
surroundingDepth
The value for surrounding depth is determined from the attribute depth range minimum value for the
surrounding encoded Depth Area. For an area feature covered by more than one depth
area, the surrounding depth is determined as the depth range minimum attribute value of the deeper of the depth areas covering the feature.
Real
Survey authority
The authority which was responsible for the survey.
surveyAuthority
The attribute 'survey authority' encodes the name of the source survey authority.(Example: Hydrographic Service, Royal Australian Navy Port of Melbourne Authority)
SURATH
Text
Survey type
Classification of the diffrent survey types
surveyType
SURTYP
Enumeration
reconnaissance/sketch survey
a survey made to a lower degree of accuracy and detail than the chosen scale would normally indicate.
1
controlled survey
a thorough survey usually conducted with reference to guidelines.
2
examination survey
a survey principally aimed at the investigation of underwater obstructions and dangers.
4
passage survey
a survey where soundings are acquired by vessels on passage.
5
remotely sensed
a survey where features have been positioned and delimited using remote sensing techniques.
6
Full Coverage
A survey achieving 100% coverage using systematic, controlled techniques providing full seafloor coverage or full coverage to a defined depth and an investigation of all contacts.
7
Systematic Survey
A controlled survey but full coverage may not have been achieved.
8
Non-systematic Survey
A survey of lower quality than a full coverage and systematic survey. Such surveys may be further categorised as reconnaissance, sketch, track, passage, remotely sensed and spot-sounding surveys.
9
inadequately surveyed
A survey that is not to modern standards, or which, due to its age, scale, or positional or vertical uncertainties is not suitable to the type of navigation expected in the area.
10
spot-sounding survey
A survey that uses a regular (e.g. grid) or irregular pattern of soundings obtained one at a time, and normally with very wide spacing.
11
accoustically swept survey
A controlled, systematic survey to standard accuracy; using modern survey echo sounder
with sonar sweep.
12
mechanically swept survey
Swept areas where the clearance depth is accurately known but the actual seabed depth is not accurately known.
13
Swept Date
The date that the area was swept by a survey.
sweptDate
Date
Technique of vertical measurement
Survey method used to obtain depth information
techniqueOfVerticalMeasurement
TECSOU
Enumeration
found by echo-sounder
the depth was determined by using an instrument that determines depth of water by measuring the time interval between emission of a sonic or ultrasonic signal and return of its echo from the bottom.
1
found by side-scan-sonar
the depth was computed from a record produced by active sonar in which fixed acoustic beams are directed into the water perpendicularly to the direction of travel to scan the bottom and generate a record of the bottom configuration.
2
found by multi-beam
the depth was determined by using a wide swath echo sounder that uses multiple beams to measure depths directly below and transverse to the ship's track.
3
found by diver
the depth was determined by a person skilled in the practice of diving.
4
found by lead-line
the depth was determined by using a line, graduated with attached marks and fastened to a sounding lead.
5
swept by wire-drag
the given area was determined to be free from navigational dangers to a certain depth by towing a buoyed wire at the desired depth by two launches, or a least depth was identified using the same technique.
6
found by laser
the depth was determined by using an instrument that measures distance by emitting timed pulses of laser light and measuring the time between emission and reception of the reflected pulses.
7
swept by vertical acoustic system
the given area has been swept using a system comprised of multiple echo sounder transducers attached to booms deployed from the survey vessel.
8
found by electromagnetic sensor
the depth was determined by using an instrument that compares electromagnetic signals.
9
photogrammetry
the depth was determined by applying mathematical techniques to photographs.
10
satellite imagery
the depth was determined by using instruments placed aboard an artificial satellite.
11
found by levelling
the depth was determined by using levelling techniques to find the elevation of the point relative to a datum.
12
swept by side-scan-sonar
the given area was determined to be free from navigational dangers to a certain depth by towing a side-scan-sonar.
13
computer generated
the sounding was determined from a bottom model constructed using a computer.
14
found by LIDAR
The depth was measured by using an instrument that measures distance by emitting timed pulses of laser light and measuring the time between emission and reception of the reflected pulses. (Adapted from IHO Dictionary ? S-32).
15
Telecommunication identifier
An identifier, such as words, numbers, letters, symbols, or any combination of those used to establish a contact to a particular person, organisation or service.
telecommunicationIdentifier
Text
Text
text
A non-formatted digital text string.
? This attribute should be used, for example, to hold the information that is shown on paper charts by short cautionary or explanatory notes. Therefore, text populated in text must not exceed 300 characters.
? Text may be in English, or in a national language defined by the attribute language (see clause X.X).
? No formatting of text is possible within text. If formatted text, or text strings exceeding 300 characters, is required, then the complex attribute textual description must be used.
Text
Text Justification
The alignment of text on a page or screen.
textJustification
Enumeration
Left
of, relating to, or located on or near the side of a person or thing that is turned toward the west when the subject is facing north (opposed to right ).
1
Centered
equidistant from all bordering or adjacent areas; situated in the center
2
Right
of, relating to, or located on or near the side of a person or thing that is turned toward the east when the subject is facing north (opposed to left ).
3
Text type
The attribute from which a text string is derived
textType
Enumeration
Feature Name
The type of attribute that will be passed via the text string.
1
Light Characteristic
The attribute information that will passed through the text string.
2
Tidal stream - panel values
The identification of the reference station with reference water level and the direction of the flow and the springs rate from 6 hours before to 6 hours after high water (HW) or low water (LW) at the reference station, at hourly intervals.
tidalStreamPanelValues
The relationship to a reference station is encoded using a collection object.
TS_TSP
StructuredText
Topmark/daymark shape
The shape a topmark or day mark exhibits
topmarkDaymarkShape
TOPSHP
Enumeration
cone, point up
is where the vertex points up. A cone is a solid figure generated by straight lines drawn from a fixed point (the vertex) to a circle in a plane not containing the vertex. Cones are commonly used as International Association of Lighthouse Authorities - IALA topmarks lateral.
1
cone, point down
is where the vertex points down. A cone is a solid figure generated by straight lines drawn from a fixed point (the vertex) to a circle in a plane not containing the vertex. Cones are commonly used as International Association of Lighthouse Authorities - IALA topmarks lateral.
2
sphere
a body the surface of which is at all points equidistant from the centre. Spheres are commonly used as International Association of Lighthouse Authorities - IALA topmarks safe water.
3
2 spheres
two black spheres are commonly used as an International Association of Lighthouse Authorities - IALA topmark (isolated danger).
4
cylinder (can)
a solid geometrical figure generated by straight lines fixed in direction and describing with one of point a closed curve, especially a circle (in which case the figure is circular cylinder, it's ends being parallel circles). Cylinders are commonly used as International Association of Lighthouse Authorities - IALA topmarks lateral.
5
board
usually of rectangular shape, made from timber or metal and used to provide a contrast with the natural background of a daymark. The actual daymark is often painted on to this board.
6
x-shape (St. Andrew's cross)
having a shape or a cross-section like the capital letter X. An x-shape as an International Association of Lighthouse Authorities - IALA topmark should be 3 dimensional in shape. It is made of at least three crossed bars.
7
upright cross (St. George's Cross)
a cross with one vertical member and one horizontal member, i.e. similar in shape to the character '+'.
8
cube, point up
a cube standing on one of its vertexes. A cube is a solid contained by six equal squares a regular hexahedron (The New Shorter Oxford English Dictionary. 1993. vol 2)
9
2 cones, point to point
2 cones, one above the other, with their vertices together in the centre.
10
2 cones, base to base
2 cones, one above the other, with their bases together in the centre and their vertices pointing up and down.
11
rhombus
a plane figure having four equal sides and equal opposite angles (two acute and two obtuse) an oblique equilateral parallelogram.
12
2 cones (points upward)
13
2 cones (points downward)
14
besom, point up (broom or perch)
besom: a bundle of rods or twigs. perch: a staff placed on top of a buoy, rock or shoal as a mark for navigation.
15
besom, point down (broom or perch)
besom: a bundle of rods or twigs. perch: a staff placed on top of a buoy, rock or shoal as a mark for navigation.
16
flag
a flag mounted on a short pole.
17
sphere over rhombus
A sphere located above a rhombus.
18
square
a plane figure with four right angles and four equal straight sides
19
horizontal rectangle
where the two longer opposite sides are standing horizontally. A rectangle is a plane figure with four right angles and four straight sides, opposite sides being parallel and equal in length
20
vertical rectangle
where the two longer opposite sides are standing vertically. A rectangle is a plane figure with four right angles and four straight sides, opposite sides being parallel and equal in length
21
trapezium, up
which stands on its longer parallel side. A trapezium is a quadrilateral having one pair of opposite sides parallel.
22
trapezium, down
which stands on its shorter parallel side. A trapezium is a quadrilateral having one pair of opposite sides parallel.
23
triangle, point up
A triangle, point up. A triangle is a figure having three angles and three sides.
24
triangle, point down
A triangle, point down. A triangle is a figure having three angles and three sides.
25
circle
a perfectly round plane figure whose circumference is everywhere equidistant from its centre.
26
two upright crosses (one over the other)
two upright crosses, generally vertically disposed one above the other.
27
triangle pointing up over a circle
a triangle, vertex uppermost, located above a circle.
29
upright cross over a circle
an upright cross located above a circle.
30
rhombus over a circle
a rhombus located above a circle.
31
circle over a triangle pointing up
a circle located over a triangle, vertex uppermost.
32
other shape (see INFORM)
33
tubular
Having the form of or consisting of a tube.
34
Traffic flow
trafficFlow
The direction of travel
TRAFIC
Enumeration
inbound
traffic flow in a general direction toward a port or similar destination.
1
outbound
traffic flow in a general direction away from a port or similar point of origin.
2
one-way
traffic flow in one general direction only.
3
two-way
traffic flow in two generally opposite directions.
4
Underlying layer
The position of the seabed type within the layers of the seabed.
underlyingLayer
Integer
Value of annual change in magnetic variation
The annual change in magnetic variation values.
valueOfAnnualChangeInMagneticVariation
A positive value, i.e., unsigned, indicates a change in an easterly direction and a negative value indicates a change in a westerly direction. Distinguished from 'value of magnetic variation'.
VALACM
Real
Value of depth contour
The depth of a sea bottom contour.
valueOfDepthContour
Drying contours are indicated by a negative value. The unit of measure is defined in the DUNI subfield of the DSPM record or in the DUNITS attribute of the M_UNIT meta object class, e.g., metre (m). The resolution is 0.1 m or 0.1 fm or 0.1 ft.
VALDCO
Real
Value of magnetic variation
The magnetic variation value.
valueOfMagneticVariation
A positive value, i.e., unsigned, indicates variation in an easterly direction and a negative value indicates variation in a westerly direction. Distinguished from 'value of annual change in magnetic variation'.
VALMAG
Real
Value of maximum range
The extreme distance at which an object can be seen or a signal detected.
valueOfMaximumRange
This attribute does not apply to lights where the attribute 'value of nominal range' should be used.
VALMXR
Real
Value of nominal range
The nominal range at which an object can be seen or a signal detected.
valueOfNominalRange
The nominal range is normally the luminous range of a light in a homogeneous atmosphere in which the meteorological visibility is 10 sea miles (IHO Hydrographic Dictionary, S-32, 5th Edition, 4218).
VALNMR
Real
Value of sounding
The value of the measurement of a sounding relative to the chart datum.
valueOfSounding
A drying height is indicated by a negative value. The unit of measure is defined in the DUNI subfield of the DSPM record or in the DUNITS attribute of the M_UNIT meta object class, e.g., metre (m). The resolution is 0.1 m or 0.1 fm or 0.1 ft.
VALSOU
Real
Vertical clearance value
The vertical clearance measured from the plane towards the object overhead.
verticalClearanceValue
In the case of cables carrying high voltages an additional clearance of from 2 to 5 metres may be needed to avoid an electrical discharge. When known, the authorized safe clearance (known in the UK as the Safe Overhead Clearance) which is the physical clearance minus a safety margin shall be stated (IHO Chart Specifications, M-4). See also 'vertical clearance safe'. The unit of measure is defined in the HUNI subfield of the DSPM record or in the HUNITS attribute of the M_UNIT meta object class, e.g., metre (m). The resolution is 0.1 m or 0.1 ft.
VERCLR
Real
Vertical datum
Vertical datum used for measuring elevations of points on the earth's surface. Its the datum to which both heights and soundings are referred.
verticalDatum
When the vertical datum is unknown, such as water areas above locks, the value 'local datum' is to be used, and further details may be encoded using 'INFORM'. The +0.3m approximation quoted in the 'approximate' levels is somehow arbitrary and follows the British example of their definition for 'approximate LAT'.
VERDAT
Enumeration
mean low water springs
(MLWS) - the average height of the low waters of spring tides.
1
mean lower low water springs
(MLLWS) - the average height of lower low water springs at a place.
2
mean sea level
(MSL) - the average height of the surface of the sea at a tide station for all stages of the tide over a 19-year period, usually determined from hourly height readings measured from a fixed predetermined reference level.
3
lowest low water
an arbitrary level conforming to the lowest tide observed at a place, or some what lower.
4
mean low water
(MLW) - the average height of all low waters at a place over a 19-year period.
5
lowest low water springs
an arbitrary level conforming to the lowest water level observed at a place at spring tides during a period of time shorter than 19 years.
6
approximate mean low water springs
an arbitrary level, usually within ' 0.3m from that of mean low water springs (MLWS).
7
Indian spring low water
(ISLW) - an arbitrary tidal datum approximating the level of the mean of the lower low water at spring tides.
8
low water springs
an arbitrary level, approximating that of mean low water springs (MLWS).
9
approximate lowest astronomical tide
an arbitrary level, usually within ' 0.3m from that of lowest astronomical tide (LAT).
10
nearly lowest low water
an arbitrary level approximating the lowest water level observed at a place, usually equivalent to the Indian spring low water (ISLW).
11
mean lower low water
(MLLW) - the average height of the lower low waters at a place over a 19-year period.
12
low water
an approximation of mean low water adopted as the reference level for a limited area, irrespective of better determinations at a later date.
13
approximate mean low water
an arbitrary level, usually within ' 0.3m from that of mean low water (MLW).
14
approximate mean lower low water
an arbitrary level, usually within ' 0.3m from that of mean lower low water (MLLW).
15
mean high water
(MHW) - the average height of all high waters at a place over a 19-year period.
16
mean high water springs
(MHWS) - the average height of the high waters of spring tides.
17
high water
the highest level reached at a place by the water surface in one tidal cycle.
18
approximate mean sea level
an arbitrary level, usually within ' 0.3m from that of mean sea level (MSL).
19
high water springs
an arbitrary level, approximating that of mean high water springs (MHWS).
20
mean higher high water
(MHHW) - the average height of higher high waters at a place over a 19-year period.
21
equinoctial spring low water
the level of low water springs near the time of an equinox.
22
lowest astronomical tide
(LAT) - the lowest tide level which can be predicted to occur under average meterological conditions and under any combination of astronomical conditions.
23
local datum
an arbitrary datum defined by a local harbour authority, from which levels and tidal heights are measured by this authority.
24
international great lakes datum 1985
(IGLD 1985) - a vertical reference system with its zero based on the mean water level at Rimouski/Pointe-au-P??re, Quebec, over the period 1970 to 1988.
25
mean water level
the average of all hourly water levels over the available period of record.
26
lower low water large tide
(LLWLT) - the average of the lowest low waters, one from each of 19 years of observations.
27
higher high water large tide
(HHWLT) - the average of the highest high waters, one from each of 19 years of observations.
28
nearly highest high water
an arbitrary level approximating the highest water level observed at a place, usually equivalent to the high water springs.
29
highest astronomical tide (HAT)
the highest tidal level which can be predicted to occur under average meteorological conditions and under any combination of astronomical conditions.
30
Vertical length
The total vertical length of an object.
verticalLength
For floating objects: the vertical distance from the surface of water to the highest point of that object. For fixed objects: the vertical distance from seabed or ground to the highest point of that object. For objects on top of other objects: the vertical distance from the lowest to the highest point of that object. Vertical length measurements do not require a datum. The unit of measure is defined in the HUNI subfield of the DSPM record or in the HUNITS attribute of the M_UNIT meta object class, e.g., metre (m). The resolution is 0.1 m or 0.1 ft.
VERLEN
Real
Vertical uncertainty
The best estimate of the vertical uncertainty of heights, vertical distances and vertical clearances, excluding sounding measurements. The one-dimensional error. The error is assumed to be positive and negative. The plus/minus character shall not be encoded.
verticalUncertainty
e.g., metre (m). The resolution is 0.1 m or 0.1 ft.
VERACC
Real
Virtural AIS aid to navigation type
A purpose of a virtual AIS Aid to navigation.
virturalAISAidToNavigationType
Enumeration
North Cardinal
An agreed system of visual aids to navigation used to indicate the relative position of an obstruction (e.g. shoal, wreck) on the compass scale (cardinal points).
1
East Cardinal
An agreed system of visual aids to navigation used to indicate the relative position of an obstruction (e.g. shoal, wreck) on the compass scale (cardinal points).
2
Yards
a common unit of linear measure in English-speaking countries, equal to 3 feet or 36 inches, and equivalent to 0.9144 meter
2
South Cardinal
An agreed system of visual aids to navigation used to indicate the relative position of an obstruction (e.g. shoal, wreck) on the compass scale (cardinal points).
3
West Cardinal
An agreed system of visual aids to navigation used to indicate the relative position of an obstruction (e.g. shoal, wreck) on the compass scale (cardinal points).
4
Port lateral
An agreed system of visual aids to navigation generally used to indicate the course of a navigable waterway.
5
Starboard lateral
An agreed system of visual aids to navigation generally used to indicate the course of a navigable waterway.
6
Preferred channel to port
An agreed system of visual aids to navigation generally used to indicate the course of a navigable waterway.
7
Preferred channel to starboard
An agreed system of visual aids to navigation generally used to indicate the course of a navigable waterway.
8
Isolated Danger
A mark (or buoy) used alone to indicate a dangerous reef or shoal. The mark (or buoy) may be passed on either hand.
9
safe water
A buoy indicating that it is safe to transit.
10
Special purpose
A special purpose aid is primarily used to indicate an area or feature, the nature of which is apparent from reference to a chart, Sailing Directions or Notice to Mariners
11
Emergency wreck marking
To mark a new wreck.
12
Visually Conspicuous
Relating to a features ability to be clearly seen and identified
visuallyConspicuous
CONVIS
Enumeration
visually conspicuous
term applied to an object either natural or artificial which is distinctly and notably visible from seaward.
1
not visually conspicuous
an object which is visible from seaward, but is not conspicuous.
2
Prominent
An object which is visible from seaward and may be used as a fixing mar, but is not conspicuous
3
Water level effect
The effect of the surrounding water on an object.
waterLevelEffect
WATLEV
Enumeration
partly submerged at high water
partially covered and partially dry at high water.
1
always dry
not covered at high water under average meteorological conditions.
2
always under water/submerged
remains covered by water at all times under average meteorological conditions.
3
covers and uncovers
expression intended to indicate an area of a reef or other projection from the bottom of a body of water which periodically extends above and is submerged below the surface. Also referred to as 'dries or uncovers'.
4
awash
flush with, or washed by the waves at low water under average meteorological conditions.
5
subject to inundation or flooding
an area periodically covered by flood water, excluding tidal waters.
6
floating
resting or moving on the surface of a liquid without sinking
7
above mean water level
above a water level called \"mean water\" which is the arithmetic mean value of all water levels within a certain period of time
8
below mean water level
below a water level called \"mean water\" which is the arithmetic mean value of all water levels within a certain period of time
9
waterway distance
The distance measured from an origin of a river or canal
waterwayDistance
wtwdis
Real
Directional character Complex
A directional light is a light illuminating a sector of very narrow angle
and intended to mark a direction to follow.
directionalCharacter
0
1
0
1
Feature Name
The complex attribute provides the name of an entity, defines the national language of the name, and provides the option to display the name at various system display settings.
featureName
0
1
0
1
1
1
Features detected Complex
The uniform assessment of detected features.
featuresDetected
1
1
1
1
0
1
Fixed date range
The complex attribute describes single fixed period, as the date range between its sub-attributes.
fixedDateRange
The sub-attributes date start and date end must be encoded using 4 digits for the calendar year (YYYY)
and, optionally, 2 digits for the month (MM) (e.g. April = 04) and 2 digits for the day (DD). When no specific
month and/or day is required/known, the values are replaced with dashes (-).
0
1
0
1
Horizontal clearance fixed Complex
The horizontal clearance measured between to points for a fixed span.
horizontalClearanceFixed
0
1
0
1
Horizontal clearance open Complex
The horizontal clearance measured between two points for an opening span.
horizontalClearanceOpen
0
1
0
1
Information
Textual information about the feature.
information
This complex attribute should be used, for example, to hold the information that is shown on paper charts by
cautionary and explanatory notes.
No formatting of text is possible within information. If formatted text is required, then an associated text file
referenced by the complex attribute textual description must be used.
INFORM
0
1
0
1
Light sector Complex
A sector is the part of a circle between two straight lines drawn from the centre
to the circumference.
lightSector
0
1
1
3
456
9
10
11
0
1
1
2
345678910111213
0
1
2
345
6
8
9
0
1
1
2
345678
0
1
2
345678
0
1
1
2
345678
Measured distance value Complex
The distance value indicated on a distance mark, or the distance between two measured distance marks.
measuredDistanceValue
1
1
1
3
45
0
1
1
3
45
1
1
1
3
45
Multiplicity of features Complex
The number of features of identical character that exist as a colocated group.
mulitplicityOfFeatures
1
1
0
1
Orientation Complex
The angular distance measured from true north to the major axis of the feature.
orientation
0
1
1
1
Periodic date range
The complex attribute describes the active period for a seasonal feature (e.g. a buoy), as the dates between its sub-attributes.
periodicDateRange
1
1
1
1
Rhythm of light
The complex attribute describes the rhythm of a light (or a light sector).
rhythmOfLight
0
1
1
2
34
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
25
26
27
28
29
0
1
2
34
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
25
26
27
28
29
0
1
1
2
34
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
25
26
27
28
29
0
1
2
34
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
25
26
27
28
29
0
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
25
26
27
28
29
0
1
0
1
0
1
Sector characteristic
The complex attribute describes the characteristics of a light sector.
sectorCharacteristic
0
1
1
2
345
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
25
26
27
28
29
0
1
1
2
345678910111213141516171819
20
25
26
27
28
29
0
1
1
2
345678910111213141516171819
20
25
26
27
28
29
0
1
1
2
345678910111213141516171819
20
25
26
27
28
29
0
1
1
2
345678910111213141516171819
20
25
26
27
28
29
Sector information Complex
Additional textual information about a light sector.
sectorInformation
0
1
0
1
Sector limit
A sector is the part of a circle between two straight lines drawn from the centre to the circumference.
The sector limit specifies the limits of the sector In a clockwise direction around the central feature (for example a light).
sectorLimit
1
1
1
1
Sector limit one
A sector is the part of a circle between two straight lines drawn from the centre to the circumference.
Sector limit one specifies the first limit of the sector. The order of sector limit one and sector limit two is clockwise around the central feature (for example a light).
sectorLimitOne
1
1
0
1
Sector limit two
A sector is the part of a circle between two straight lines drawn from the centre to the circumference.
Sector limit two specifies the second limit of the sector. The order of sector limit one and sector limit two is clockwise around the central feature (for example a light).
sectorLimitTwo
1
1
0
1
Shape Information
Textual information about the shape of a non-standard topmark.
shapeInformation
No formatting of text is possible within shape information. If formatted text is required, then an associated
text file referenced by the complex attribute textual description must be used
0
1
1
1
Signal sequence complex
The sequence of times occupied by intervals of light and eclipse for all
“light characteristics”.
signalSequence
1
1
1
1
1
2
Speed
Rate of motion. The terms speed and velocity are often used interchangeably, but speed is a scalar, having magnitude only, while velocity is a vector quantity, having both magnitude and direction.
speed
1
1
0
1
Surface characteristics
The general nature of the material of which the land surface or the
seabed is composed.
surfaceCharacteristics
0
1
1
2
345678911
14
17
18
0
3
1
2
345678910
0
1
1
2
345678910
Survey Date Range
The complex attribute describes the period of the hydrographic survey, as the time between its
sub-attributes.
surveyDateRange
The sub-attributes date start and date end must be encoded using 4 digits for the calendar year (YYYY)
and, optionally, 2 digits for the month (MM) (e.g. April = 04) and 2 digits for the day (DD). When no specific
month and/or day is required/known, indication of the month and/or day is replaced with dashes (-).
1
1
0
1
Telecommunications
A means or channel of communicating at a distance by electrical or electromagnetic means such as telegraphy, telephony, or broadcasting.
telecommunications
If no value is populated for the sub-attribute telecommunication service, this means the service is by voice communication.
0
1
1
1
Topmark
A characteristic shape secured at the top of a buoy or beacon to aid in its
identification.
topmark
0
1
1
2
34
5
6
7
8
9
10
11
12
13
1
1
1
2
34
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
29
30
31
32
33
0
1
2
345678910111213141516171819
20
21
22
23
24
25
26
27
29
30
31
32
33
update description
The textual description of changes included in an update.
updateDescription
- The sub-attribute text is populated with a brief description of the changes made when the Update is applied,
e.g.: Navigational aids inserted
Changes to depths alongside and new pontoons added
0
1
1
1
Value of local magnetic anomaly
The value of the deviation from the normal magnetic variation.
valueOfLocalMagneticAnomaly
1
1
0
1
Vertical clearance closed Complex
The vertical clearance of a feature in closed condition (e.g. a
closed lifting bridge) measured from the horizontal plane towards the feature overhead.
verticalClearanceClosed
1
1
0
1
Vertical clearance fixed Complex
The vertical clearance measured from the horizontal plane towards
a fixed (non-opening) feature overhead.
verticalClearanceFixed
In the case of cables carrying high voltages an additional clearance of from 2 to 5 metres may be needed to
avoid an electrical discharge. When known, the authorised safe clearance (known in the UK as the Safe
Overhead Clearance) which is the physical clearance minus a safety margin shall be stated, using the
attribute vertical clearance safe. vertical clearance fixed must not be used to populate authorized safe clearances
1
1
0
1
Vertical clearance open Complex
The vertical clearance of a feature in opened condition (e.g. an
open lifting bridge) measured from the horizontal plane towards the feature overhead.
verticalClearanceOpen
1
1
0
1
Vertical Clearance Safe Complex
The safe vertical clearance of a feature measured from the
horizontal plane towards the feature overhead.
verticalClearanceSafe
0
1
0
1
Vessel speed limit
The maximum allowed rate of travel for a vessel in an area in knots.
vesselSpeedLimit
frequency pair
A pair of frequencies for transmitting and receiving radio signals. The shore station transmits and receives on the frequencies indicated.
frequencyPair
FRQPAR
0
1
0
0
online resource
Information about online sources from which a resource or data can be obtained (ISO 19115, adapted).
onlineResource
ONLRES
1
1
0
0
0
0
0
0
0
0
0
1
3
45678910112
0
0
1
3
45678910112
Provided by
a pointer to a specific feature(s) for which further information is required.
providedBy
Provides
acts as the authority and provider of a specified service.
provides
Supported by
a pointer to the master feature that equipment feature(s) are supported by.
supportedBy
Supports
a pointer to the equipment feature(s) supported by a master feature.
supports
Component of
a pointer to a part in a whole-part relationship.
componentOf
Consists of
a pointer to the aggregate in a whole-part relationship.
consistsOf
Additional information
an information association for the binding between at least one instance of a geo feature and an instance of an information type.
additionalInformation
Structure/equipment
a feature association for the binding between a navigation aid equipment feature and the structure that supports it.
structureEquipment
Aids to navigation association
a feature association for the binding between navigational aids and the traffic systems (such as routeing measures) that they define.
aidsToNavigationAssociation
ASL aggregation
a feature association for the binding between an Archipelagic Sea Lane and its component features.
ASLAggregation
Bridge aggregation
feature association for the binding between a bridge and its component features.
bridgeAggregation
Bridge association
a feature association for the binding between a bridge and equipment features on the bridge (e.g. lights).
bridgeAssociation
Caution area association
a feature association for the binding between a caution area and the traffic systems (such as routeing measures) to which the cautionary information applies.
cautionAreaAssociation
Deep Water route aggregation
a feature association for the binding between a Deep Water route and its component features.
deepWaterRouteAggregation
Island aggregation
a feature association for the binding between a named group if islands.
islandAggregation
Range system aggregation
a feature association for the binding between navigational tracks and the navigational aids that define the tracks.
rangeSystemAggregation
Traffic Separation Scheme aggregation
a feature association for the binding between a Traffic Separation Scheme or a Traffic Separation Scheme System and its component features.
trafficSeparationSchemeAggregation
Two-way route aggregation
a feature association for the binding between a two-way route and its component features.
twoWayRouteAggregation
Contact Details
Information on how to reach a person or organisation by postal, internet, telephone, telex and radio systems.
ContactDetails
0
1
0
0
1
0
1
0
1
0
0
0
Service Hours
The time when a regular service is available and known exceptions.
ServiceHours
0
1
0
0
Non-Standard Working Day
Days when many services are not available. Often days of festivity or recreation when normal working hours are limited, especially a national or religious festival, etc.
NonStandardWorkingDay
0
0
0
1
0
0
Nautical Information
Nautical information about a related area or facility.
NauticalInformation
0
1
0
1
0
1
Spatial Quality
Unspecified.
SpatialQuality
0
1
0
1
1
2
3
4
5
6
9
10
11
0
1
Quality of non-bathymetric data
An area within which a uniform assessment of the quality of the non-bathymetric data exists
QualityOfNonBathymetricData
1
1
1
2
3
4
5
0
1
1
1
0
1
0
1
0
1
Meta
surface
Data Coverage
A geographical area that describes the coverage and extent of spatial objects.
DataCoverage
This object class is intended to support an indication of coverage.
1
1
1
1
Meta
surface
Navigational system of marks
An area within which a specific system of navigational marks applies and/or a common direction of buoyage.
NavigationalSystemOfMarks
1
1
1
2
9
11
Meta
surface
Local direction of buoyage
An area within which the navigational system of marks has been established in relation to a specific direction.
LocalDirectionOfBuoyage
0
1
1
1
Geographic
surface
Quality of Bathymetric Data
An area within which a uniform assessment of the quality of the bathymetric data exists.
QualtiyOfBathymetricData
1
1
1
2
3
4
5
1
1
1
2
3
0
1
0
1
1
1
1
1
1
1
1
1
1
1
Meta
Sounding datum
An area of uniform sounding datum.
SoundingDatum
1
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Meta
surface
Vertical datum of data
An area of uniform vertical datum.
VerticalDatumOfData
1
1
3
16
17
18
19
20
21
24
25
26
28
29
30
Meta
surface
Quality of Survey
An area within which a uniform assessment of the reliability of source survey information exists.
QualityOfSurvey
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
3
4
6
0
1
2
3
4
6
7
8
9
10
11
0
1
0
1
1
1
1
1
1
1
2
4
5
6
7
8
9
10
11
12
13
0
1
2
3
4
5
6
8
9
10
11
12
13
15
Meta
Update information
Update Information metadata feature is used to represent a change to the information shown.
UpdateInformation
1
0
1
0
1
Meta
point
curve
surface
Magnetic variation
The angle between the magnetic and geographic (true) north at a location, expressed in degrees east or west from the direction of true north.
MagneticVariation
1
1
1
1
0
1
1
1
Geographic
point
curve
surface
Local magnetic anomaly
An anomaly of the magnetic field of the Earth, extending over a relatively small area, due to local magnetic influences.
LocalMagneticAnomaly
0
0
1
1
1
0
1
Geographic
point
curve
surface
Coastline
The line where shore and water meet. Although the terminology of coasts and shores is rather confused, shoreline and coastline are generally used as synonyms.
Coastline
0
1
1
2
6
7
8
10
0
1
2
3
4
6
7
8
11
13
0
1
0
0
1
2
3
4
5
6
8
9
11
14
17
0
1
0
1
1
2
3
Geographic
curve
Land area
The solid portion of the Earth's surface, as opposed to sea, water.
LandArea
0
1
1
3
5
0
0
1
18
0
1
Geographic
0
1
point
curve
surface
Island Group
A group of islands, including archipelago's.
IslandGroup
0
Geographic
2
2
noGeometry
Land elevation
An elevation is the vertical distance of a point or a level, on, or affixed to, the surface of the earth, measured from a specified vertical datum.
LandElevation
This object class is used to encode both spot heights and land (height) contours.
1
1
0
0
1
1
2
3
0
1
Geographic
point
curve
River
A relatively large natural stream of water.
River
The object 'river' describes the area of the river, the object 'river bank' its banks.
0
0
1
5
0
1
Geographic
curve
surface
Rapids
Portions of a stream with accelerated current where it descends rapidly but without a break in the slope of the bed sufficient to form a waterfall. Usually used in the plural.
Rapids
0
0
1
0
1
Geographic
point
curve
surface
Waterfall
A sudden descent of water over a step in the bed of a river.
Waterfall
In place names commonly shortened to fall or falls, e.g. Niagara Falls.
0
0
1
0
1
1
2
3
0
1
Geographic
point
curve
Lake
A large body of water entirely surrounded by land.
Lake
0
1
0
0
1
0
1
5
Geographic
surface
Land region
An area of natural scenery on land. It is defined by its geographical characteristics and may be known by its proper name.
LandRegion
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
0
0
1
2
3
4
5
6
7
8
9
11
14
17
18
0
1
1
6
0
1
Geographic
point
curve
surface
Vegetation
Collections of, or individual plants.
Vegetation
1
1
3
4
5
6
7
11
13
14
15
16
17
18
19
20
21
22
0
1
0
0
1
0
1
0
1
1
2
3
0
1
Geographic
point
curve
surface
Ice area
An area of ice over land or water.
IceArea
1
1
1
5
8
0
1
0
0
1
0
0
1
0
1
5
18
0
1
0
1
1
2
3
0
1
Geographic
surface
Sloping ground
An inclined surface.
SlopingGround
0
1
1
2
3
4
5
6
7
0
1
2
3
4
6
7
8
11
13
0
0
4
5
6
7
9
11
0
1
0
1
1
2
3
0
1
Geographic
point
surface
Slope topline
The upper marking of a slope, e.g. the ridge line or the separation line between two different gradients.
SlopeTopline
0
1
1
2
6
0
1
2
3
4
6
7
8
11
13
0
1
0
0
4
5
6
7
9
11
0
1
0
1
1
2
3
0
1
Geographic
curve
Tideway
A natural water course in intertidal areas where water flows during the ebb or flow.
Tideway
A channel through which a tidal current runs.
0
0
1
Geographic
curve
surface
Built-up area
An area containing a concentration of buildings and the supporting road or rail infrastructure.
BuiltUpArea
0
1
1
2
3
4
5
6
0
1
1
2
5
0
0
1
0
1
0
1
0
1
1
2
3
0
1
Geographic
point
surface
Building, single
A relatively permanent structure, roofed and usually walled. It is designed for some particular use which it may be important to indicate.
BuildingSingle
This object class is used to encode single buildings, including those with a particular function or service of major interest.
0
1
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
1
1
2
5
0
1
0
0
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
44
45
46
47
48
0
1
0
1
0
1
2
6
7
8
12
0
4
7
8
12
13
14
0
1
0
1
0
1
0
1
3
16
17
18
19
20
21
24
25
26
28
29
30
0
1
0
1
1
2
3
0
1
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
0
1
point
surface
Airport/airfield
An area containing at least one runway, used for landing, take-off, and movement of aircraft.
AirportAirfield
0
1
2
3
4
5
6
8
9
0
1
1
2
3
5
0
0
1
0
1
2
4
5
6
7
8
12
14
0
1
Geographic
point
surface
Runway
A defined rectangular area, on a land aerodrome, prepared for the landing and take-off run of aircraft along its length.
Runway
A site on which helicopters may land and take off (IHO Dictionary, S-32, 5th Edition, 2232).
0
1
2
0
1
1
2
3
5
0
0
1
2
4
5
6
7
0
0
1
0
1
2
4
5
6
7
8
12
14
0
1
Geographic
point
curve
surface
Bridge
A structure erected over a depression or an obstacle such as a body of water, railroad, etc. to provide a roadway for vehicles, pedestrians or to carry utility services.
Bridge
A bridge may consist of portions which cover the land and the water.
0
1
1
2
3
4
5
6
7
8
9
10
11
12
0
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
1
1
2
5
0
0
1
0
1
0
1
2
6
7
11
0
1
0
1
0
1
2
4
5
7
12
0
1
1
2
3
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
1
1
1
curve
surface
noGeometry
Span fixed
A fixed component of the deck of a bridge spanning successive bridge piers.
(Adapted from Defence Geospatial Information Working Group;
SpanFixed
0
1
1
1
0
1
3
16
17
18
19
20
21
24
25
26
28
29
30
0
1
Geographic
0
1
1
1
1
1
1
1
1
1
1
1
1
curve
surface
Span opening
An opening component of the deck of a bridge spanning successive bridge piers.
SpanOpening
0
1
1
1
1
1
0
1
3
16
17
18
19
20
21
24
25
26
28
29
30
0
1
0
1
0
1
Geographic
0
1
1
1
1
1
1
1
1
1
1
1
1
curve
surface
Conveyor
A mechanical apparatus for moving bulk material or people from place to place (as by a moving belt or chain of receptacles).
Conveyor
0
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0
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1
Geographic
1
1
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1
1
1
1
1
1
1
curve
surface
Cable, overhead
An overhead cable is an assembly of wires or fibres, or a wire rope or chain, which is supported by structures such as poles or pylons and passing over or nearby navigable waters.
CableOverhead
The cable supports are encoded as pylon/bridge supports (PYLONS).
0
1
1
3
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5
0
1
1
5
0
1
0
1
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0
1
0
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1
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28
0
1
0
1
0
1
3
16
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1
1
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0
1
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1
Geographic
1
curve
Pipeline, overhead
An overhead pipeline is a pipeline supported by pylons and passing over or nearby navigable waters.
PipelineOverhead
A pipeline is a string of interconnected pipes used for the transport of matter, nowadays mainly oil or gas (IHO Dictionary, S-32, 5th Edition, 3857).
0
1
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6
0
1
1
5
0
0
1
0
1
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22
0
1
0
1
0
1
4
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1
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1
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0
1
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
curve
Pylon/bridge support
A vertical construction consisting, for example, of a steel framework or pre-stressed concrete to carry cables, a bridge, etc.
PylonBridgeSupport
1
1
1
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0
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1
1
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1
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0
0
1
0
1
0
1
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7
11
0
1
0
1
0
4
12
0
1
0
1
1
2
3
0
1
1
2
3
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6
0
1
0
1
Geographic
0
1
1
1
1
1
1
1
1
1
1
1
1
point
surface
Fence/Wall
A natural or man-made barrier used as an enclosure or boundary or for protection.
FenceWall
0
1
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9
10
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13
0
1
1
2
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0
1
1
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5
0
1
0
0
1
0
1
2
3
6
7
11
0
1
0
1
0
1
7
12
13
0
1
0
1
1
2
3
0
1
0
1
3
4
Geographic
curve
Railway
A rail or set of parallel rails on which a train or tram runs.
Railway
0
1
1
2
5
0
0
1
0
1
0
1
4
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12
13
14
0
1
Geographic
curve
Road
A road is an open way for the passage of vehicles.
Road
0
1
1
2
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6
0
1
1
2
5
0
0
1
2
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5
0
1
0
1
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6
7
8
12
13
14
0
1
Geographic
curve
surface
Tunnel
A passage that is open to the atmosphere at both ends, buried under the sea bed or laid over the sea floor or bored under the ground or through mountains.
Tunnel
0
1
1
2
5
0
0
1
0
1
0
1
3
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6
8
14
0
1
0
1
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16
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25
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0
1
Geographic
curve
surface
Landmark
A prominent object at a fixed location which can be used in determining a location or a direction.
Landmark
1
1
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0
16
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41
0
1
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8
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0
1
1
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1
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0
1
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0
1
0
1
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6
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11
12
0
1
0
1
0
2
4
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7
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12
13
14
0
1
1
1
1
2
3
0
1
0
1
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
0
1
point
curve
surface
Silo/tank
An enclosed container, used for storage.
SiloTank
0
1
5
6
7
8
9
0
1
1
2
3
4
0
1
2
3
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6
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8
9
10
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12
13
0
1
1
2
3
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6
0
1
1
2
5
0
1
0
0
1
0
1
2
6
7
8
0
1
2
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5
6
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8
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13
14
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23
0
1
0
1
0
4
12
13
0
1
0
1
1
2
3
0
1
0
1
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
0
1
point
surface
Wind turbine
A structure consisting of a tower with rotating blades situated
in the sea. Wind turbines convert kinetic energy and electricity.
WindTurbine
0
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
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5
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0
1
1
4
5
0
1
0
0
1
0
1
0
1
0
2
6
7
8
11
0
1
0
1
0
1
2
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7
8
12
13
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28
0
1
0
1
3
16
17
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19
20
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24
25
26
28
29
30
0
1
0
1
1
2
3
0
1
2
7
0
1
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
point
Fortified structure
A structure for the military defence of a site.
FortifiedStructure
A fortified structure is often disused, decayed or used for non-defence purpose. Such structures range from major castles and forts to minor lookout posts.
0
1
1
2
3
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8
9
0
1
1
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0
1
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1
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1
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1
0
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12
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14
28
0
1
0
1
1
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0
1
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
0
1
point
curve
surface
Production/storage area
An area on land for the exploitation or storage of natural resources.
ProductionStorageArea
1
1
1
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11
0
1
1
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1
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0
1
0
1
0
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0
1
0
1
1
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3
0
1
Geographic
point
surface
Checkpoint
An official place to register, declare or check goods and people.
Checkpoint
The object 'checkpoint' does not include facilities such as buildings, gates or other installations.
0
1
1
0
0
1
2
5
7
9
12
0
1
Geographic
point
surface
Hulk
A permanently moored ship.
Hulk
0
1
2
3
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7
0
1
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8
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1
1
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1
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0
0
1
0
1
0
1
0
1
0
1
0
1
1
2
3
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
point
surface
Pile
A long heavy timber or section of steel, wood, concrete, etc. forced into the earth which may serve as a support, as for a pier, or a free standing pole within a marine environment.
Pile
0
1
1
3
4
5
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7
0
1
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3
4
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8
9
10
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12
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0
1
1
2
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5
6
0
1
1
2
5
0
0
1
0
1
0
1
0
1
0
1
4
6
7
8
12
14
0
1
0
1
1
2
3
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
1
1
1
1
0
1
point
curve
surface
Dyke
A dyke (or dike) is an artificial embankment to contain or hold back water.
Dyke
0
1
1
2
3
5
0
1
0
1
2
3
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5
6
7
0
1
0
1
0
1
0
1
1
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0
1
0
1
0
Geographic
curve
surface
Shoreline construction
A fixed (not afloat) artificial structure between the water and the land, i.e. a man-made coastline.
ShorelineConstruction
0
1
1
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1
1
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0
1
1
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5
0
0
1
0
1
0
1
0
1
0
1
0
1
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11
0
1
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1
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0
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1
1
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0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
point
curve
surface
Causeway
A raised way across low or wet ground or water.
Causeway
0
1
1
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5
0
0
1
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7
0
1
0
1
7
8
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14
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1
1
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6
0
1
Geographic
curve
surface
Canal
An artificial waterway with no flow, or a controlled flow, used for navigation, or for draining or irrigating land (ditch).
Canal
The object 'canal' describes the area of the canal, the object 'canal bank' describes the banks.
0
1
1
2
3
0
1
1
2
3
5
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1
0
1
0
1
0
0
1
0
1
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6
8
14
0
1
Geographic
curve
surface
Distance mark
A distance mark indicates the distance measured from an origin and consists of either a solid visible structure or a distinct location without special installation.
DistanceMark
Usually found on canals.
0
1
1
2
3
4
0
0
1
1
1
0
1
Geographic
point
Gate
A structure that may be swung, drawn, or lowered to block an entrance or passageway.
Gate
This object class is used to encode gates that control the flow of water.
0
1
2
3
4
5
6
0
1
1
2
5
0
1
0
0
1
0
1
2
6
7
0
2
3
4
6
7
0
1
0
1
4
6
16
17
0
1
0
1
3
16
17
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19
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21
24
25
26
28
29
30
0
1
0
1
Geographic
point
curve
surface
Dam
A barrier to check or confine anything in motion; particularly one constructed to hold back water and raise its level to form a reservoir, or to prevent flooding.
Dam
0
1
1
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3
0
1
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1
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1
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0
0
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0
1
0
1
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7
0
1
0
1
0
1
2
6
7
8
14
28
0
1
0
1
1
2
3
0
1
1
2
3
6
0
1
Geographic
curve
surface
Crane
A machine for lifting, shifting and lowering objects or materials by means of a swinging boom or with a lifting apparatus supported on an overhead track.
Crane
The position of a sheerlegs or a travelling crane is defined as its resting position.
0
1
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1
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0
1
1
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6
0
1
1
2
5
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
4
6
12
0
1
0
1
3
16
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25
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28
29
30
0
1
0
1
1
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3
0
1
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
point
curve
surface
Berth
A named or numbered place where a vessel is moored at a wharf.
Berth
0
1
1
0
1
0
1
0
1
0
1
0
0
1
2
0
1
2
5
7
9
12
0
1
0
1
Geographic
point
curve
surface
Mooring/Warping facility
The equipment or structure used to secure a vessel.
MooringWarpingFacility
0
1
1
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5
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7
8
1
1
1
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3
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0
1
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8
9
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13
0
1
1
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6
0
1
1
2
5
0
1
0
0
1
0
1
0
1
2
6
7
0
0
2
3
4
6
7
0
1
0
1
0
1
2
3
4
5
6
7
8
12
14
18
0
1
0
1
1
2
3
0
1
1
2
3
4
5
6
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
0
1
point
curve
surface
Dry dock
An artificial basin fitted with a gate or caisson, into which vessels can be floated and the water pumped out to expose the vessel's bottom.
DryDock
Graving dock
0
1
1
2
3
5
0
1
0
1
0
0
1
0
1
0
1
0
1
0
1
0
2
3
4
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7
8
9
0
1
0
1
4
6
8
12
14
0
1
0
1
Geographic
surface
Floating dock
A form of dry dock consisting of a floating structure of one or more sections which can be partly submerged by controlled flooding to receive a vessel, then raised by pumping out the water so that the vessel's bottom can be exposed.
FloatingDock
0
1
2
3
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8
9
10
11
12
13
0
1
1
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0
1
1
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0
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
4
6
7
8
12
0
1
0
1
1
2
3
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
point
curve
surface
Pontoon
A floating structure, usually rectangular in shape which serves as landing, pier head or bridge support.
Pontoon
0
1
1
2
5
0
0
1
0
0
1
0
1
0
1
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5
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8
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14
0
1
0
1
1
2
3
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
point
curve
surface
Dock area
A dock is an artificially enclosed area within which ships may moor and which may have gates to regulate water level.
DockArea
0
1
1
2
0
1
1
2
3
5
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
4
6
8
14
Geographic
surface
Gridiron
A structure in the intertidal zone serving as a support for vessels at low stages of the tide to permit work on the exposed portion of the vessel's hull.
Gridiron
Also called 'careening grid'.
0
0
1
0
1
0
1
2
6
7
11
0
1
4
6
8
14
28
0
1
0
1
1
4
5
0
1
Geographic
surface
Lock basin
A lock basin is a wet dock in a waterway, permitting a ship to pass from one level to another.
LockBasin
0
0
1
0
1
0
1
0
1
0
1
4
6
8
13
14
16
17
Geographic
surface
Sea area/named water area
A geographically defined part of the sea or other navigable waters. It may be specified within its limits by its proper name.
SeaAreaNamedWaterArea
Each sea area is defined independent of any other. Smaller sea areas may be located within larger sea areas.
0
1
2
3
4
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8
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48
49
50
51
52
53
54
55
56
0
0
1
Geographic
point
surface
Tidal stream - flood/ebb
Approximate tidal stream rates given as discrete rate values for flood and ebb flow during springs.
TidalStreamFloodEbb
A tidal stream (or tidal current) is a horizontal movement of water associated with the rise and fall of the tide caused by tide-producing forces (adapted from IHO Dictionary, S-32, 5th Edition).
1
1
1
2
3
0
0
1
1
1
0
1
1
1
Geographic
point
surface
Current - non-gravitational
Currents (non-gravitational) include either singly or in combination: ocean currents (wind and/or density driven), inter-oceanic equalising currents, currents of navigable rivers, river outflow effects offshore and other non-tidal flows.
CurrentNonGravitational
0
0
1
1
1
0
1
1
0
1
5
0
1
Geographic
point
curve
surface
Water turbulence
The disturbance of water caused by the interaction of any combination of waves, currents, tidal streams, wind, shoal patches and obstructions.
WaterTurbulence
1
1
1
2
3
4
5
0
0
1
Geographic
point
curve
surface
Tidal stream panel data
Approximate tidal stream rates given as discrete rate values at a specified interval before or after a high water.
TidalStreamPanelData
A tidal stream (or tidal current) is an alternating horizontal movement of water associated with the rise and fall of the tide caused by tide-producing forces (IHO Dictionary, S-32, 5th Edition, 1169). The object 'tidal stream panel data' encodes data for use in a tidal panel.
0
1
1
0
1
1
0
1
Geographic
point
surface
Sounding
A measured water depth or spot which has been reduced to a vertical datum (may be a drying height).
Sounding
Drying heights (drying soundings) are indicated by a negative value.
0
0
1
3
4
8
9
0
1
0
1
18
0
1
2
3
4
5
6
8
9
10
11
12
13
15
0
1
0
1
Geographic
pointSet
Dredged area
An area of the bottom of a body of water which has been deepened by dredging.
DredgedArea
1
1
0
1
0
1
0
0
1
0
1
10
11
0
1
2
3
6
8
9
13
15
0
1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
38
Geographic
surface
Swept Area
An area that has been determined to be clear of navigational dangers to a specified depth.
SweptArea
1
1
0
1
6
0
1
0
6
8
13
0
1
0
1
Geographic
surface
Depth contour
A line connecting points of equal water depth which is sometimes significantly displaced outside of soundings, symbols and other chart detail for clarity as well as generalization.
DepthContour
Depth contours, therefore, often represent an approximate location of the line of equal depth as related to the surveyed line delineated on the source. Also referred to as depth curve. Drying contours are encoded with negative values.
1
1
0
1
Geographic
curve
Depth area
A depth area is a water area whose depth is within a defined range of values.
DepthArea
Intertidal areas are encoded as depth areas. These do not have to include soundings. The depth range within a depth area is defined by the attributes DRVAL1 and DRVAL2.
1
1
1
1
Geographic
surface
Depth - no bottom found
Upon investigation the bottom was not found at this depth.
DepthNoBottomFound
0
1
2
3
5
6
8
9
13
15
0
1
Geographic
pointSet
Unsurveyed area
An area for which no bathymetric survey information is available.
UnsurveyedArea
Geographic
surface
Seabed area
An area of the sea where the nature of bottom is homogeneous. The nature of bottom includes the material of which it is composed and its physical characteristics.
SeabedArea
Generally, it is not possible to define a seabed area by its real extent. For that reason, the characteristics of the seabed area may be represented at one single position.
character or quality of the bottom
0
1
0
1
3
4
5
0
1
Geographic
point
curve
surface
Weed/Kelp
Seaweed, any macroscopic marine alge or seagrass (IHO Dictionary, S-32, 5th Edition, 4589). Kelp is one of an order (laminariales) of usually large, blade-shaped or vine-like brown algae (IHO Dictionary, S-32, 5th Edition, 2611).
WeedKelp
Seaweed is the general name for marine plants of the Algae class which grow in long narrow ribbons (International Maritime Dictionary, 2nd Ed.). Kelp is often an indication of the presence of submerged rocks (IHO Chart Specifications M-4).
Sea Weed
0
1
1
2
3
4
0
0
1
Geographic
point
surface
Sand waves
A large mobile wave-like sediment feature in shallow water and composed of sand. The wavelength may reach 100 metres, the amplitude may be up to 20 metres.
SandWaves
0
1
0
1
Geographic
point
curve
surface
Spring
A natural issue of water or other substances from the earth. One on the bottom of the sea is called a 'submarine spring'.
Spring
0
0
1
Geographic
point
Underwater/awash rock
A concreted mass of stony material or coral which dries, is awash or is below the water surface.
UnderwaterAwashRock
0
1
1
2
0
0
1
14
0
1
2
3
4
6
7
8
9
0
1
0
1
18
0
1
2
3
4
5
6
8
9
10
11
12
13
1
1
0
1
1
1
3
4
5
0
1
0
1
0
1
Geographic
point
Wreck
The ruined remains of a stranded or sunken vessel which has been rendered useless.
Wreck
0
1
1
2
3
4
5
0
1
1
2
3
0
0
1
0
1
2
3
4
6
7
8
9
0
1
0
1
0
7
13
18
0
1
2
3
4
5
6
8
9
10
11
12
13
15
0
1
0
1
0
1
1
2
3
1
1
1
2
3
4
5
0
1
0
1
0
1
Geographic
point
surface
Obstruction
In marine navigation, anything that hinders or prevents movement, particularly anything that endangers or prevents passage of a vessel.
Obstruction
The term is usually used to refer to an isolated danger to navigation.
0
1
1
2
3
4
5
6
8
9
10
11
12
13
14
15
16
17
18
19
0
1
1
2
5
0
1
1
2
3
0
0
1
0
1
0
1
2
3
8
23
0
1
2
3
4
6
7
8
9
0
1
0
1
4
5
7
8
13
18
28
0
1
2
3
4
5
6
7
8
9
11
14
17
18
0
1
2
3
4
5
6
8
9
10
11
12
13
15
0
1
0
1
0
1
1
1
1
2
3
4
5
7
0
1
0
1
0
1
Geographic
point
curve
surface
Foul ground
Areas over which it is safe to navigate but which should be avoided for
anchoring, taking the ground or ground fishing.
FoulGround
0
0
1
2
3
4
6
7
8
9
0
1
0
13
18
28
0
1
2
3
4
5
6
8
9
10
11
12
13
15
0
1
0
1
0
1
3
4
5
0
1
Geographic
point
curve
surface
Discoloured water
Unnatural coloured areas in the sea which may or may not indicate the existence of shoals.
DiscolouredWater
0
1
0
1
Geographic
point
surface
Fishing facility
A structure in shallow water for fishing purposes which can be an obstruction to ships in general.
FishingFacility
The position of these structures may vary frequently over time.
0
1
1
2
3
4
0
1
1
2
5
0
0
0
1
0
1
4
5
6
7
8
12
18
28
0
1
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
1
point
curve
surface
Marine farm/culture
An assemblage of cages, nets, rafts and floats or posts where fish, including shellfish, are artificially cultivated.
MarineFarmCulture
Fish Farm
0
1
1
2
3
4
5
0
1
1
2
0
0
1
0
0
1
2
3
4
6
7
8
9
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
38
0
1
2
4
5
6
7
8
14
16
17
28
0
1
0
1
0
1
1
1
1
2
3
4
5
7
0
1
Geographic
point
curve
surface
Offshore platform
A permanent offshore structure, either fixed or floating, used in the production of oil or natural gas.
OffshorePlatform
0
1
1
2
3
4
5
6
7
8
9
10
11
0
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
1
1
2
5
0
0
1
0
1
0
1
0
1
2
3
18
19
23
0
1
0
1
0
1
2
4
7
8
12
28
0
1
0
1
1
2
3
1
1
2
7
0
1
Geographic
point
surface
Cable, submarine
An assembly of wires or fibres, or a wire rope or chain which has been laid underwater or buried beneath the seabed.
CableSubmarine
0
1
0
1
1
6
7
8
0
1
1
5
0
0
1
0
1
4
13
18
0
1
Geographic
curve
Cable area
An area which contains one or more submarine cables.
CableArea
0
1
7
8
0
0
1
0
1
2
3
4
5
6
7
8
9
11
12
13
14
16
17
18
20
23
24
25
27
38
0
1
7
13
0
1
Geographic
surface
Pipeline, submarine/on land
A submarine or land pipeline is a pipeline lying on or buried under the seabed or the land.
PipelineSubmarineOnLand
A pipeline is a string of interconnected pipes used for the transport of matter, nowadays mainly oil or gas (IHO Dictionary, S-32, 5th Edition, 3857). It must be assumed that the pipes are vulnerable to damage from anchoring or trawling. They may be a potential danger to navigation (IHO Chart Specifications, M-4).
0
1
0
2
3
4
5
6
0
1
1
5
0
1
0
1
0
0
1
0
1
2
3
7
8
9
18
19
0
1
0
1
3
4
5
8
9
11
12
13
14
16
17
18
20
23
24
25
26
27
38
0
1
4
7
12
0
1
0
1
0
1
Geographic
curve
Submarine pipeline area
An area containing one or more pipelines.
SubmarinePipelineArea
0
2
3
5
6
0
0
1
0
1
2
3
7
8
18
19
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
38
0
1
4
7
0
1
Geographic
point
surface
Offshore production area
An area at sea within which there are production facilities.
OffshoreProductionArea
0
1
1
2
3
4
5
0
1
1
2
4
5
0
0
1
0
1
0
1
2
4
6
10
14
23
0
1
0
1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
38
0
1
4
7
8
12
28
0
1
0
1
1
2
3
0
1
Geographic
surface
Navigation line
A navigation line is a straight line extending towards an area of navigational interest and generally generated by two navigational aids or one navigational aid and a bearing.
NavigationLine
The extent of the navigation line depends on the visibility of the navigational aid(s). The attribute 'orientation' (ORIENT) specifies the orientation of the navigation line measured from the water towards the navigational aid(s). The recommended track is that portion of a 'navigation line' that a ship should use for navigation.
1
1
1
2
3
0
1
0
1
1
1
0
0
1
2
5
7
8
14
0
1
Geographic
0
1
curve
Recommended track
A track recommended to all or only certain vessels.
RecommendedTrack
Recommended tracks include all channels recommended for hydrographic reasons to lead safely between shoal depths. The use of such tracks is generally left to the discretion of the mariner and will depend on the vessel's draught, the state of the tide, adequacy of navigational aids and so on (IHO Chart Specifications, M-4). The recommended track is that portion of a 'navigation line' that a ship should use for navigation.
In the case of a two-way recommended track only one value of orientation is encoded (in the attribute ORIENT); the other value can be deduced (i.e. the value in ORIENT + 180 degrees).
1
1
1
2
0
1
0
0
1
0
1
1
1
0
0
1
2
6
0
1
2
5
7
9
12
16
17
0
1
2
3
6
8
9
13
15
1
1
1
2
3
4
0
1
0
1
Geographic
0
1
curve
Range System
Navigation system limited in their positioning capability to coastal regions, or those systems limited to making landfall
RangeSystem
? The name of the range system may be populated using the complex attribute feature name.
? All features comprising a range system must have the same value populated for the attribute scale
minimum
0
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
noGeometry
Fairway
That part of a river, harbour and so on, where the main navigable channel for vessels of larger size lies.
Fairway
It is also the usual course followed by vessels entering or leaving harbours, called 'ship channel'.
0
1
0
0
1
0
1
0
1
0
1
2
6
0
1
2
3
4
5
6
8
9
10
11
12
13
15
16
17
18
19
20
21
22
23
24
25
27
38
0
1
3
6
7
9
28
0
1
1
2
3
4
0
1
0
1
Geographic
surface
Fairway System
That part of a river, harbour and so on, where the main navigable channel for vessels of larger size lies. It is also the usual course followed by vessels entering or leaving harbours, called “ship channel”. A fairway system is an aggregation of connected fairway features making up a complex fairway system.
FairwaySystem
A fairway system is composed of two or more Fairway features that comprise a complex fairway routeing system, for instance a long fairway comprising several bends. To define the complete fairway system, the Fairway features must be collected using the named aggregation feature Fairway System.
0
0
1
0
1
0
Geographic
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
noGeometry
Recommended route centerline
A recommended route centerline indicates the 'centerline' of a recommended route.
RecommendedRouteCenterline
A recommended route is a route of undefined width, for the convenience of ships in transit, which is often marked by centerline buoys (IHO Dictionary, S-32, 5th Edition, 4448). A recommended route describes the regulation of navigation for non-hydrographic reasons such as the prevention of collision or the avoidance of pollution risks. It is generally laid down by a national or international authority other than the hydrographic authority. (IHO Chart Specifications, M-4)
1
1
1
2
0
1
0
0
1
0
1
0
0
1
2
3
4
6
0
1
5
6
9
0
1
3
6
8
9
13
15
0
1
1
2
3
4
0
1
0
1
Geographic
curve
Two-way route part
A two-way route part is an area of a two-way route within which traffic flow is generally along one bearing (and possibly its reciprocal).
TwoWayRoutePart
A two-way route is a route within defined limits inside which two-way traffic is established, aimed at providing safe passage of ships through waters where navigation is difficult or dangerous (IHO Dictionary, S-32, 5th Edition, 5712). The complete two-way route consists of one or more parts depending on the shape of the two-way route. The orientation of the two-way route part is defined by its centerline and is related to the general direction of the two-way route.
0
1
1
2
0
1
0
1
1
1
0
1
2
3
4
6
0
1
3
6
9
0
1
3
5
6
8
9
13
15
1
1
1
2
3
4
0
1
0
1
Geographic
0
1
0
1
surface
Two-way route
A route within defined limits inside which two way traffic is established,
aimed at providing safe passage of ships through waters where navigation is difficult or dangerous.
TwoWayRoute
0
0
1
Geographic
2
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
noGeometry
Recommended traffic lane part
An optional part of an IMO-adopted routing measure.
RecommendedTrafficLanePart
Several Hydrographic Offices, in consultation with their Ministries of Transport, have added recommended directions in areas such as the outer approaches to major ports in order to show the best routes for crossing traffic or to minimize head-on encounters.(IHO Chart Specifications, M-4). The object 'recommended traffic lane part' indicates the recommended traffic flow e.g., between two TSS, in the entrance areas of a TSS, beside a deep water route. The complete recommended traffic lane consists of one or more parts depending on the various shapes of the recommended traffic lane. The orientation of the recommended traffic lane part is defined by the middle-line of the recommended traffic lane part relating to the general direction of the recommended traffic lane part.
0
1
1
1
0
1
6
9
0
1
Geographic
point
surface
Deep water route centerline
A deep water route centerline indicates the centerline of a deep water route, the width of which is not explicitly defined.
DeepWaterRouteCenterline
A deep water route is a route in a designated area, within defined limits, which has been accurately surveyed for clearance of sea bottom and submerged obstacles to a minimum indicated depth of water (IHO Dictionary, S-32, 5th Edition, 1280). Additional information can be found in IHO Technical Resolution A1.17.
1
1
1
2
0
1
1
2
0
1
0
0
1
1
1
0
1
2
3
4
6
7
0
1
3
6
9
0
1
3
5
6
8
9
13
15
1
1
1
2
3
4
0
1
0
1
Geographic
0
1
0
1
curve
Deep water route part
A part of a deep water route.
DeepWaterRoutePart
A deep water route is a route in a designated area, within defined limits, which has been accurately surveyed for clearance of sea bottom and submerged obstacles to a minimum indicated depth of water (IHO Dictionary, S-32, 5th Edition, 1280). The complete deep water route consists of one or more parts depending on the shape of the deep water route. The orientation of the route part is defined by the middle line of the part relating to the general direction of the deep water route. Additional information can be found in IHO Technical Resolution A1.17.
0
1
1
2
1
1
0
0
1
1
1
0
1
2
3
4
6
7
0
1
2
3
4
5
6
8
9
10
11
12
13
16
17
18
19
20
21
22
23
24
25
27
0
1
3
6
9
28
0
1
3
5
6
8
9
13
15
1
1
1
2
3
4
0
1
0
1
Geographic
0
1
0
1
surface
Deep Water Route
A route within defined limits which has been accurately surveyed for clearance of sea bottom and submerged obstacles as indicated on the chart.
DeepWaterRoute
To define the complete Deep Water route (DW) system, the features Deep Water Route Centreline, Deep Water Route Part and any associated navigation aids must be associated with the feature Deep Water Route using the associations Deep Water Route Aggregation and Aids to Navigation.
0
1
1
2
0
Geographic
2
2
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
noGeometry
Inshore traffic zone
A routeing measure comprising a designated area between the landward boundary of a traffic separation scheme and the adjacent coast, to be used in accordance with the provisions of the International Regulations for Preventing Collisions at Sea.
InshoreTrafficZone
0
1
0
1
2
3
4
5
6
8
9
10
11
12
13
16
17
18
19
20
21
22
23
24
25
27
0
1
3
6
9
16
17
0
1
Geographic
0
1
surface
Precautionary area
A routeing measure comprising an area within defined limits where ships must navigate with particular caution and within which the direction of traffic flow may be recommended.
PrecautionaryArea
0
1
1
2
0
0
1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
0
1
9
28
0
1
0
1
Geographic
0
1
point
surface
Traffic separation scheme lane part
A traffic separation scheme lane part is an area of a traffic lane in which the direction of flow of traffic is uniform.
TrafficSeparationSchemeLanePart
A traffic separation scheme is a scheme which aims to reduce the risk of collision in congested and/or converging areas by separating traffic moving in opposite, or nearly opposite, directions (IHO Dictionary, S-32, 5th Edition, 5585). A traffic lane is an area within defined limits in which one-way traffic flow is established (IMO Ships Routeing, 6th Edition). The complete traffic lane may consist of one or more lane parts depending on the shape of the lane.
0
1
0
1
0
1
2
3
4
5
6
8
9
10
11
12
13
16
17
18
19
20
21
22
23
24
25
27
0
1
3
6
9
28
0
1
Geographic
0
1
surface
Traffic separation zone
A traffic separation zone is a zone separating the lanes in which ships are proceeding in opposite or nearly opposite directions; or separating traffic lanes designated for particular classes of ships proceeding in the same direction.
TrafficSeparationZone
0
1
0
1
3
9
28
0
1
Geographic
0
1
surface
Traffic separation line
A traffic separation scheme is a scheme which aims to reduce the risk of collision in congested and/or converging areas by separating traffic moving in opposite, or nearly opposite, directions.
TrafficSeparationLine
0
1
0
1
3
9
28
0
1
Geographic
0
1
curve
Traffic separation scheme boundary
The boundary of a traffic separation scheme is the outer limit of a traffic lane part or a traffic separation scheme roundabout.
TrafficSeparationSchemeBoundary
A traffic separation scheme is a scheme which aims to reduce the risk of collision in congested and/or converging areas by separating traffic moving in opposite, or nearly opposite, directions (IHO Dictionary, S-32, 5th Edition, 5585).
0
1
0
1
3
9
28
0
1
Geographic
0
1
curve
Traffic separation scheme crossing
A traffic separation scheme crossing is a defined area where traffic lanes cross.
TrafficSeparationSchemeCrossing
A traffic separation scheme is a scheme which aims to reduce the risk of collision in congested and/or converging areas by separating traffic moving in opposite, or nearly opposite, directions (IHO Dictionary, S-32, 5th Edition, 5585).
0
1
0
1
2
3
4
5
6
8
9
10
11
12
13
16
17
18
19
20
21
22
23
24
25
27
0
1
3
6
9
0
1
Geographic
0
1
surface
Traffic separation scheme roundabout
A roundabout is a traffic separation scheme in which traffic moves in a counter-clockwise direction around a specified point or zone.
TrafficSeparationSchemeRoundabout
A traffic separation scheme is a scheme which aims to reduce the risk of collision in congested and/or converging areas by separating traffic moving in opposite, or nearly opposite, directions (IHO Dictionary, S-32, 5th Edition, 5585).
0
1
0
1
2
3
4
5
6
8
9
10
11
12
13
16
17
18
19
20
21
22
23
24
25
27
0
1
3
6
9
0
1
Geographic
0
1
surface
Traffic separation scheme
A scheme which aims to reduce the risk of collision in
congested and/or converging areas by separating traffic moving in opposite, or nearly opposite, directions.
TrafficSeparationScheme
0
1
1
2
0
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
noGeometry
Archipelagic sea lane area
Article 53 of the United Nations Convention on the Law of the Sea (UNCLOS) states that:
‘an archipelagic State may designate sea lanes ..., suitable for the continuous and expeditious passage of foreign ships ... through ... its archipelagic waters and the adjacent territorial sea. ... All ships ... enjoy the right of archipelagic sea lanes passage in such sea lanes ... [which] include all normal passage routes used as routes for international navigation … through archipelagic waters’.
(Note: references to aircraft and air routes in UNCLOS have been omitted in these extracts from Article 53).
ArchipelagicSeaLaneArea
The object class Archipelagic sea lane encodes the area of an Archipelagic sea lane.
Unspecified
0
0
1
1
1
0
1
Geographic
0
1
surface
Archipelagic sea lane axis
The reference line used to determine the maximum extents of an Archipelagic Sea Lane. It may not indicate the deepest water nor any recommended route or track.
Article 53 of the United Nations Convention on the Law of the Sea (UNCLOS) states that:
‘an archipelagic State may designate sea lanes ..., suitable for the continuous and expeditious passage of foreign ships ... through ... its archipelagic waters and the adjacent territorial sea. ..... All ships ... enjoy the right of archipelagic sea lanes passage in such sea lanes ... [which] include all normal passage routes used as routes for international navigation … through archipelagic waters’.
(Note: references to aircraft and air routes in UNCLOS have been omitted in these extracts from
Article 53).
ArchipelagicSeaLaneAxis
Unspecified
0
0
1
1
1
0
1
Geographic
0
1
curve
Archipelagic Sea Lane
Sea lanes designated by an archipelagic State for the passage
of ships and aircraft.
ArchipelagicSeaLane
0
Geographic
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
noGeometry
Radio calling-in point
On passing a radio callin-in point or crossing a defined line vessels are required to report on VHF to a Traffic Control Centre. The attribute 'orientation' (ORIENT) encodes the orientation of the traffic flow at that point.
RadioCallingInPoint
Radio callin-in points are established in certain busy waterways and port approaches to assist traffic control.
Radio reporting points
0
1
0
0
0
1
0
2
0
0
1
3
4
5
6
7
9
1
1
1
2
3
4
0
1
Geographic
point
curve
Ferry route
A route in a body of water where a ferry crosses from one shoreline to another.
FerryRoute
1
1
2
3
5
0
0
1
0
0
1
2
4
5
6
7
8
9
14
0
1
Geographic
curve
surface
Radar line
A track along which ships may be guided by coastal radar stations in the event of bad visibility. Also known as a radar guided track.
RadarLine
0
1
1
0
1
2
3
4
7
0
1
Geographic
curve
Radar range
Indicates the coverage of a sea area by a radar surveillance station. Inside this area a vessel may request shore-based radar assistance, particularly in poor visibility.
RadarRange
Many large ports have a radar surveillance system covering their approaches to provide guidance for vessels, particularly in poor visibility. The maximum range of the system forms an arc or series of overlapping arcs (IHO Chart Specifications, M-4).
0
0
0
1
0
1
2
4
7
0
1
Geographic
surface
Radar station
A station with a transmitter emitting pulses of ultra-high frequency radio waves which are reflected by solid objects and are detected upon their return to the sending station.
RadarStation
The object 'radar station' is used to encode the technical equipment itself independent of the building or structure where it is installed. This building or structure, e.g. mast, tower, building, radar dome is a different object.
0
1
0
1
2
0
0
0
1
0
0
1
2
4
7
8
0
1
0
1
Geographic
point
Anchorage area
An area in which vessels anchor or may anchor.
AnchorageArea
0
1
2
3
4
5
6
7
8
9
10
14
15
0
0
1
0
0
2
3
4
5
6
8
9
10
11
12
13
15
16
17
18
19
20
21
23
24
27
38
0
1
2
3
5
6
7
8
9
14
0
1
Geographic
point
surface
Anchor berth
A designated area of water where a single vessel, sea plane, etc., may anchor.
AnchorBerth
In general the anchor berth is defined by the centre point and a swinging circle.
0
1
2
3
4
5
6
7
8
9
10
14
0
0
1
0
0
1
0
1
2
3
4
5
6
7
8
9
14
0
1
Geographic
point
surface
Sea-plane landing area
A designated portion of water for the landing and take-off of sea-planes.
SeaPlaneLandingArea
0
0
0
1
2
3
4
5
6
7
8
9
10
11
12
13
15
16
17
18
19
20
21
22
23
24
25
27
38
0
1
2
3
4
5
6
7
8
9
14
0
1
Geographic
point
surface
Dumping ground
A sea area where dredged material or other potentially more harmful material, e.g. explosives, chemical waste, is deliberately deposited.
DumpingGround
0
2
3
4
5
6
0
1
0
0
1
2
3
4
6
7
0
1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Geographic
point
surface
Military practice area
An area within which naval, military or aerial exercises are carried out. Also called an 'exercise area'.
MilitaryPracticeArea
0
2
3
4
5
6
0
0
1
0
1
0
0
1
2
3
4
5
6
7
8
9
10
11
12
13
15
16
17
18
19
20
21
22
23
24
25
26
27
38
0
1
2
5
6
7
16
17
0
1
Geographic
point
surface
Administration Area (Named)
A defined (and possibly named) administrative area.
AdministrationArea
0
1
1
1
1
2
3
0
0
0
1
Geographic
surface
Cargo transhipment area
An area designated for the transfer of cargo from one vessel to another.
CargoTranshipmentArea
The transhipment of cargo is often known as 'lightering' and the area may be known as 'lightering area' or 'cargo transfer area'.
0
0
1
0
0
2
3
4
5
6
8
9
10
11
12
13
15
16
17
18
19
20
21
22
24
27
38
0
1
2
3
5
6
7
9
0
1
Geographic
point
surface
Caution Area
Generally, an area where the mariner has to be made aware of circumstances influencing the safety of navigation.
CautionArea
This object class may be required to identify:a danger, a risk, a rule, or advice -- which is not directly related to a specific object.
0
1
1
3
5
0
1
0
0
1
0
1
5
7
0
1
0
1
Geographic
0
1
0
1
point
surface
Information area
An area for which general information regarding navigation, but not directly related to safety of navigation, is available.
InformationArea
0
0
1
0
0
1
0
1
0
1
Geographic
point
curve
surface
Contiguous zone
A zone contiguous to a coastal State's territorial sea, which may not extend beyond 24 nautical miles from the baselines from which the breadth of the territorial sea is measured.
ContiguousZone
The coastal state may exercise certain control in this zone subject to the provisions of International Law.
0
1
1
0
1
0
1
Geographic
surface
Continental shelf area
The continental shelf of a coastal State comprises the sea bed and subsoil of the submarine areas that extend beyond its territorial sea throughout the natural prolongation of its land territory to the outer edge of the continental margin, or to a distance of 200 nautical miles from the baselines from which the breadth of the territorial sea is measured where the outer edge of the continental margin does not extend out to that distance.
ContinentalShelfArea
0
1
0
1
Geographic
surface
Custom zone
The area within which national custom regulations are in force.
CustomZone
1
1
0
1
Geographic
surface
Exclusive economic zone
An area, not exceeding 200 nautical miles from the baselines from which the breadth of the territorial sea is measured, subject to a specific legal regime established in the United Nations Convention on the Law of the Sea under which the coastal state has certain rights and jurisdiction.
ExclusiveEconomicZone
0
1
1
0
1
Geographic
surface
Fishery zone
The offshore zone in which exclusive fishing rights and management are held by the coastal nation.
FisheryZone
The fishery zone commonly coincides with other zones such as: Continental Shelf, Exclusive Economic Zone.
0
1
1
0
1
5
6
7
0
1
Geographic
surface
Fishing ground
A water area in which fishing is frequently carried on.
FishingGround
0
0
0
1
2
4
5
6
8
9
10
11
12
15
16
17
18
19
20
21
22
23
24
25
26
27
38
0
1
5
6
7
8
14
16
17
28
0
1
Geographic
surface
Free port area
A port where certain import and export duties are waived (unless goods pass into the country) to facilitate reshipment to other countries.
FreePortArea
0
0
1
6
8
14
0
1
Geographic
surface
Harbour area (administrative)
The area over which a harbour authority has jurisdiction.
HarbourAreaAdministrative
0
0
1
4
6
8
14
0
1
Geographic
surface
Log pond
A maritime area enclosed with connected floating timbers used as a staging area for sawn logs.
LogPond
Booming ground
0
0
0
1
2
5
6
7
8
0
1
Geographic
point
surface
Oil barrier
A construction to dam oil flow on water.
OilBarrier
0
1
1
2
0
1
1
2
5
0
0
1
0
1
0
1
2
4
5
7
8
0
1
Geographic
curve
Straight territorial sea baseline
Straight baselines are a system of straight lines joining specified or discrete points on the low-water line, usually known as straight baseline turning points.
StraightTerritorialSeaBaseline
A baseline is the line from which the outer limits of the territorial sea and certain other outer limits are measured (IHO Dictionary, S-32, 5th Edition, 390).
1
1
0
1
Geographic
curve
Territorial sea area
The territorial sea is a belt of water of a defined breadth but not exceeding 12 nautical miles measured seaward from the territorial sea baseline.
TerritorialSeaArea
0
1
1
0
2
4
6
8
9
10
12
17
18
19
20
21
22
23
24
27
0
1
Geographic
surface
Submarine transit lane
An area where submarines may navigate under water or at the surface.
SubmarineTransitLane
0
0
1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
16
17
18
19
20
21
22
23
24
25
27
0
1
Geographic
surface
Pilotage district
An area within which a pilotage direction exists. Such directions are
regulated by a competent harbour authority which dictates circumstances under which they apply.
PilotageDistrict
0
0
0
1
Geographic
surface
Collision regulations limit
Convention on the International Regulations for
Preventing Collisions at Sea, 1972 (COLREGs). The demarcation line between inland navigation rules and
international navigation rules.
CollisionRegulationsLimit
0
0
1
0
0
1
0
1
Geographic
curve
Restricted Area Navigational
A navigational restricted area is an area where the restrictions have a direct impact on the navigation of a vessel in the area.
RestrictedAreaNavigational
0
1
4
5
6
7
8
9
10
12
14
18
19
20
21
22
23
24
25
27
28
29
30
31
32
0
0
1
0
1
1
2
7
8
13
14
25
26
27
0
1
0
1
2
3
4
5
6
7
9
28
0
Geographic
0
1
surface
Restricted area regulatory
A regulatory restricted area is an area where the restrictions have no direct impact on the navigation of a vessel in the area, but impact on the activities that can take place within the area.
RestrictedAreaRegulatory
0
1
4
5
6
7
8
9
10
12
14
18
19
20
21
22
23
25
27
28
29
30
31
32
0
0
1
0
0
3
4
5
6
9
10
11
12
15
16
17
18
19
20
21
22
23
24
38
0
1
0
1
2
3
4
5
6
7
9
18
28
0
Geographic
0
1
surface
Light all around
An all around light is a light that is visible over the whole horizon of interest to marine navigation and having no
change in the characteristics of the light.
LightAllAround
0
4
5
8
9
10
11
12
13
14
15
17
18
19
20
1
1
3
4
5
6
9
10
11
0
1
1
2
3
4
0
0
1
0
1
0
1
1
2
0
1
0
1
1
2
9
11
0
1
0
1
1
0
1
2
4
5
6
7
8
11
14
15
16
17
0
1
0
1
3
16
17
18
19
20
21
24
25
26
28
29
30
0
1
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
point
Light sectored
A sectored light is a light having one or more sectors, which have different characteristics across, and sometimes within, each sector.
LightSectored
0
4
5
8
9
10
11
12
13
14
15
17
18
19
20
0
1
1
2
4
0
0
1
0
1
0
1
1
2
9
0
1
0
1
2
4
5
6
7
8
11
14
15
16
17
0
1
3
16
17
18
19
20
21
24
25
26
28
29
30
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
point
Light fog detector
A fog detector light is a light used to automatically determine conditions of visibility which warrant the turning
on or off of a sound signal.
LightFogDetector
0
1
3
4
5
6
9
10
11
0
0
1
0
1
0
0
1
0
1
2
4
5
6
7
8
11
14
15
16
17
0
1
3
16
17
18
19
20
21
24
25
26
28
29
30
0
1
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
point
Light air obstruction
An air obstruction light is a light marking an obstacle which constitutes a danger to air navigation.
LightAirObstruction
0
1
3
4
5
6
9
10
11
0
1
1
2
3
4
0
0
1
0
1
0
1
2
3
4
5
6
7
8
9
0
1
0
0
1
0
1
2
4
5
6
7
8
11
14
15
16
17
0
1
0
1
3
16
17
18
19
20
21
24
25
26
28
29
30
0
1
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
point
Buoy, lateral
A lateral buoy is used to indicate the port or starboard hand side of the route to be followed. They are generally used for well defined channels and are used in conjunction with a conventional direction of buoyage.
BuoyLateral
A buoy is a floating object moored to the bottom in a particular place, as an aid to navigation or for other specific purposes. (IHO Dictionary, S-32, 5th Edition, 565). Topmark, light, fog signal, radar reflector and retro-reflector are separate objects.
1
1
1
2
3
4
5
6
7
8
1
1
1
2
3
4
1
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
0
1
0
1
1
2
9
11
0
6
7
8
11
0
0
1
0
1
2
5
7
8
18
0
1
0
1
0
1
Geographic
1
1
1
1
1
1
1
1
1
0
1
0
1
0
1
0
1
0
1
point
Buoy, cardinal
A cardinal buoy is used in conjunction with the compass to indicate where the mariner may find the best navigable water. It is placed in one of the four quadrants (North, East, South and West), bounded by inter-cardinal bearings from the point marked.
BuoyCardinal
A buoy is a floating object moored to the bottom in a particular place, as an aid to navigation or for other specific purposes. (IHO Dictionary S-32 5th Edition, 565). Topmark, light, fog signal, radar reflector and retro-reflector are separate objects.
1
1
1
2
3
4
5
6
7
8
1
1
1
2
3
4
1
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
0
1
0
1
1
2
9
11
0
6
7
8
11
0
0
1
0
1
2
5
7
8
18
0
1
0
1
0
1
Geographic
1
1
1
1
1
1
1
1
1
0
1
0
1
0
1
0
1
0
1
point
Buoy, isolated danger
A isolated danger buoy is a buoy moored on or above an isolated danger of limited extent, which has navigable water all around it.
BuoyIsolatedDanger
A buoy is a floating object moored to the bottom in a particular place, as an aid to navigation or for other specific purposes. (IHO Dictionary, S-32, 5th Edition, 565). Topmark, light, fog signal, radar reflector and retro-reflector are separate objects.
1
1
1
2
3
4
5
6
7
8
1
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
0
1
0
1
1
2
9
11
0
6
7
8
11
0
0
1
0
1
2
5
7
8
18
0
1
0
1
0
1
Geographic
0
1
0
1
0
1
1
1
1
1
1
1
1
1
1
0
1
0
1
point
Buoy, safe water
A safe water buoy is used to indicate that there is navigable water around the mark.
BuoySafeWater
A buoy is a floating object moored to the bottom in a particular place, as an aid to navigation or for other specific purposes. (IHO Dictionary, S-32, 5th Edition, 565). Topmark, light, fog signal, radar reflector and retro-reflector are separate objects.
1
1
1
2
3
4
5
6
7
8
1
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
0
1
0
1
1
2
9
11
0
6
7
8
11
0
0
1
0
1
2
5
7
8
18
0
1
0
1
0
1
Geographic
0
1
1
1
1
1
1
1
1
1
1
0
1
0
1
0
1
point
Buoy, special purpose/general
A special purpose buoy is primarily used to indicate an area or feature, the nature of which is apparent from reference to a chart, Sailing Directions or Notices to Mariners (UKHO NP 735, 5th Edition). Buoy in general: A buoy whose appearance or purpose is not adequately known.
BuoySpecialPurposeGeneral
A buoy is a floating object moored to the bottom in a particular place, as an aid to navigation or for other specific purposes. (IHO Dictionary, S-32, 5th Edition, 565). Topmark, light, fog signal, radar reflector and retro-reflector are separate objects.
1
1
1
2
3
4
5
6
7
8
1
1
2
3
4
5
6
7
8
9
10
11
12
14
15
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
39
40
42
43
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
1
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
0
1
0
1
1
2
9
11
0
6
7
8
11
0
0
1
0
1
2
5
7
8
18
0
1
0
1
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
1
1
point
Emergency wreck marking buoys
An emergency wreck marking buoy is a buoy moored on or above a new wreck, designed to provide a
prominent (both visual and radio) and easily identifiable temporary (24-72 hours) first response.
BuoyEmergencyWreckMarking
1
1
1
2
3
4
5
6
7
8
1
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
0
1
0
1
1
2
9
11
0
6
7
8
11
0
1
0
1
0
1
0
1
Geographic
1
1
1
1
1
1
1
1
1
point
Buoy, installation
An installation buoy is a buoy used for loading tankers with gas or oil.
BuoyInstallation
A buoy is a floating object moored to the bottom in a particular place, as an aid to navigation or for other specific purposes. (IHO Dictionary, S-32, 5th Edition, 565).
1
1
1
2
3
4
5
6
7
8
0
1
1
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
0
1
0
7
11
0
0
1
1
2
18
19
0
1
0
1
2
4
5
7
8
18
0
1
1
2
3
0
1
Geographic
1
1
1
1
1
1
1
1
point
Beacon, lateral
A lateral beacon is used to indicate the port or starboard hand side of the route to be followed. They are generally used for well defined channels and are used in conjunction with a conventional direction of buoyage.
BeaconLateral
A beacon is a prominent specially constructed object forming a conspicuous mark as a fixed aid to navigation or for use in hydrographic survey (IHO Dictionary, S-32, 5th Edition, 420). Topmark, light, fog signal, radar reflector and retro-reflector are separate objects.
1
1
1
2
3
5
6
7
1
1
1
2
3
4
1
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
1
1
2
5
0
1
0
0
1
0
1
0
1
1
2
9
11
0
1
2
6
7
8
11
0
0
1
0
1
0
1
2
4
5
7
8
12
18
0
1
0
1
0
1
1
2
3
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
1
1
1
0
1
point
Beacon, cardinal
A cardinal beacon is used in conjunction with the compass to indicate where the mariner may find the best navigable water. It is placed in one of the four quadrants (North, East, South and West), bounded by inter-cardinal bearings from the point marked.
BeaconCardinal
A beacon is a prominent specially constructed object forming a conspicuous mark as a fixed aid to navigation or for use in hydrographic survey (IHO Dictionary, S-32, 5th Edition, 420). Topmark, light, fog signal, radar reflector and retro-reflector are separate objects.
1
1
1
2
3
5
6
7
1
1
1
2
3
4
1
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
1
1
2
5
0
1
0
0
1
0
1
0
1
1
2
9
11
0
1
2
6
7
8
11
0
0
1
0
1
0
1
2
4
5
7
8
12
18
0
1
0
1
0
1
1
2
3
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
1
0
1
point
Beacon, isolated danger
An isolated danger beacon is a beacon erected on an isolated danger of limited extent, which has navigable water all around it.
BeaconIsolatedDanger
A beacon is a prominent specially constructed object forming a conspicuous mark as a fixed aid to navigation or for use in hydrographic survey (IHO Dictionary, S-32, 5th Edition, 420). Topmark, light, fog signal, radar reflector and retro-reflector are separate objects.
1
1
1
2
3
5
6
7
1
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
1
1
2
5
0
1
0
0
1
0
1
0
1
1
2
9
11
0
1
2
6
7
8
11
0
0
1
0
1
0
1
2
4
5
7
8
12
18
0
1
0
1
0
1
1
2
3
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
1
1
1
0
1
point
Beacon, safe water
A safe water beacon is a prominent specially constructed object forming a conspicuous mark as a fixed aid to navigation or for use in hydrographic survey.
BeaconSafeWater
A safe water beacon may be used to indicate that there is navigable water around the mark. (UKHO NP 735, 5th Edition) Topmark, light, fog signal, radar reflector and retro-reflector are separate objects.
1
1
1
2
3
5
6
7
1
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
1
1
2
5
0
1
0
0
1
0
1
0
1
1
2
9
10
11
0
1
2
6
7
8
11
0
0
1
0
1
0
1
2
4
5
7
8
12
18
0
1
0
1
0
1
1
2
3
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
1
1
1
0
1
point
Beacon, special purpose/general
A special purpose beacon is primarily used to indicate an area or feature, the nature of which is apparent from reference to a chart, Sailing Directions or Notices to Mariners (UKHO NP 735, 5th Edition). Beacon in general: A beacon whose appearance or purpose is not adequately known.
BeaconSpecialPurposeGeneral
A beacon is a prominent specially constructed object forming a conspicuous mark as a fixed aid to navigation or for use in hydrographic survey (IHO Dictionary, S-32, 5th Edition, 420). Topmark, light, fog signal, radar reflector and retro-reflector are separate objects.
1
1
1
2
3
5
6
7
1
1
2
3
4
5
6
7
8
10
11
12
14
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
60
61
62
63
1
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
1
1
2
5
0
1
0
0
1
0
1
0
1
1
2
9
11
0
1
2
6
7
8
11
0
0
1
0
1
0
1
2
4
5
7
8
12
18
0
1
0
1
0
1
1
2
3
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
1
1
1
0
1
point
Daymark
The identifying characteristics of an aid to navigation which serve to facilitate its recognition against a daylight viewing background.
Daymark
On those structures that do not by themselves present an adequate viewing area to be seen at the required distance, the aid is made more visible by affixing a daymark to the structure. A daymark so affixed has a distinctive colour and shape depending on the purpose of the aid.
0
1
2
3
4
5
6
7
8
10
11
12
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
60
61
62
63
1
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
1
0
0
1
0
1
0
1
2
4
6
7
8
11
0
0
1
0
1
4
5
7
8
12
1
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
0
1
0
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
point
Light float
A boat-like structure used instead of a light buoy in waters where strong streams or currents are experienced, or when a greater elevation than that of a light buoy is necessary.
LightFloat
The light of a light float is a separate object, handled as with buoys, beacons, etc.
1
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
0
1
0
1
0
1
0
6
7
11
0
0
1
0
1
2
4
5
7
8
14
16
17
0
1
0
1
0
1
1
2
3
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
1
1
point
Light vessel
A distinctively marked vessel anchored or moored at a charted point, to serve as an aid to navigation. By night, it displays a characteristic light(s) and is usually equipped with other devices, such as fog signal, submarine sound signal, and radio-beacon, to assist navigation.
LightVessel
Also called 'light ship'. The light(s), fog signal etc. of a light vessel is a separate object, handled as with buoys, beacons, etc.
1
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
0
1
0
1
0
1
0
6
7
0
0
1
0
1
2
4
5
7
8
14
16
17
0
1
0
1
1
2
3
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
1
1
point
Retro-reflector
A means of distinguishing unlighted marks at night. Retro-reflective material is secured to the mark in a particular pattern to reflect back light.
RetroReflector
The body carrying the retro-reflector is a separate object.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
1
2
3
4
5
6
0
1
0
1
0
0
1
4
8
0
1
Geographic
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
point
Radar reflector
A device capable of, or intended for, reflecting radar signals.
RadarReflector
A radar reflector is usually a tetrahedron or pentagonal corner reflector to facilitate reflection towards the sender.(International Maritime Dictionary, 2nd Ed.). The object 'radar reflector' is only used to encode a device specifically intended to reflect radar signals. If any other object, e.g. topmark, buoy, beacon, etc. is radar conspicuous, because of its construction, the attribute 'CONRAD' must be used.
0
1
0
1
0
0
1
4
8
0
1
Geographic
0
1
point
Fog signal
A warning signal transmitted by a vessel, or aid to navigation, during periods of low visibility. Also, the device producing such a signal.
FogSignal
1
1
1
2
3
4
5
6
7
8
9
10
0
0
1
0
0
1
0
1
1
2
3
4
5
6
0
1
0
1
0
0
1
2
4
5
7
8
15
0
1
0
1
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
point
Physical AIS aid to navigation
An Automatic Identification System (AIS) message 21 transmitted from a physical Aid to Navigation, or transmitted from an AIS station for an Aid to Navigation which does or does not physically exist.
PhysicalAISAidToNavigation
0
1
0
0
1
0
1
0
0
1
1
5
7
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
point
Virtual AIS aid to navigation
An Automatic Identification System (AIS) message 21 transmitted from a physical Aid to Navigation, or transmitted from an AIS station for an Aid to Navigation which does or does not physically exist.
VirtualAISAidToNavigation
0
1
0
0
1
0
1
0
0
1
1
5
7
1
1
1
2
3
4
5
6
7
8
9
10
11
12
0
1
Geographic
point
Radio station
A place equipped to transmit radio waves.
RadioStation
Such a station may be either stationary or mobile, and may also be provided with a radio receiver. In British terminology, also called 'w/t station'. The transmission of a radio station may serve to provide mariners with a line of position (IHO Chart Specifications, M-4). The object 'radio station' is used to encode the point of transmission of the signal.
0
1
0
1
5
8
9
10
11
12
13
14
19
20
0
0
1
0
0
1
0
1
0
0
1
2
4
5
7
8
0
1
Geographic
point
Radar transponder beacon
A transponder beacon transmitting a coded signal on radar frequency, permitting an interrogating craft to determine the bearing and range of the transponder.
RadarTransponderBeacon
The object class 'radar transponder beacon' is only used to encode the technical equipment independent of the structure on which it is located (e.g. a beacon, light-vessel or tower).
RACON
1
1
1
2
3
0
0
1
0
0
2
0
1
0
1
0
0
1
2
4
5
7
8
0
1
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
point
Pilot boarding place
The meeting place to which the pilot comes out.
PilotBoardingPlace
0
1
1
2
3
0
0
1
0
0
1
2
5
6
9
16
17
28
0
1
0
1
Geographic
point
surface
Vessel traffic service area
The area of any service implemented by a relevant authority
primarily designed to improve safety and efficiency of traffic flow and the protection of the environment. It may
range from simple information messages, to extensive organisation of the traffic involving national or regional
schemes.
VesselTrafficServiceArea
0
0
1
0
1
Geographic
surface
Coastguard station
Watch keeping stations at which a watch is kept either continuously, or at certain times only.
CoastguardStation
This object class is used to describe the function of the coastguard rather than the building in which the coastguard is sited.
0
0
0
1
0
1
0
0
1
4
5
16
17
0
1
Geographic
point
surface
Signal station, warning
A signal station is a place on shore from which signals are made to ships at sea.
SignalStationWarning
This object class is used to describe the function of the signal station rather than the structure on which the station is sited.
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
0
0
1
0
0
1
2
4
5
7
8
12
14
15
16
17
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
point
surface
Signal station, traffic
A signal station that regulates the movement of traffic.
SignalStationTraffic
A signal station is a place on shore from which signals are made to ships at sea (IHO Dictionary, S-32, 5th Edition, 4742). This object class is used to describe the function of the signal station rather than the structure on which the station is sited.
1
1
2
3
4
5
6
7
8
9
10
0
0
0
1
0
0
1
2
4
5
7
8
12
14
15
16
17
0
1
Geographic
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
point
surface
Rescue station
A place at which life saving equipment is held.
RescueStation
This object encodes the service available at this location. The structure housing the service should be coded separately.
0
1
2
4
5
6
7
8
0
0
0
1
0
0
1
2
4
5
7
8
14
16
17
0
1
Geographic
point
surface
Harbour facility
A harbour installation with a service or commercial operation of public interest.
HarbourFacility
1
1
3
4
5
6
7
8
9
10
11
12
13
14
15
0
0
1
1
2
3
5
0
0
1
0
1
2
3
6
7
0
0
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
25
0
1
0
1
2
3
4
5
6
8
9
10
11
12
13
15
16
17
18
19
20
21
23
24
27
0
1
4
5
6
7
8
9
12
13
14
16
17
0
1
Geographic
point
surface
Small craft facility
A place at which a service generally of interest to small craft or pleasure boats is available.
SmallCraftFacility
This object class encodes the service available at this location. The structure housing the service should be encoded separately.
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
0
0
0
1
2
3
4
5
6
7
8
9
12
14
16
17
0
1
Geographic
point
surface
Text placement
The Text Placement feature is used in association with the Feature Name attribute or a light description to optimize text positioning in ECDIS.
TextPlacement
0
1
0
1
1
1
1
2
3
0
1
0
1
1
2
Cartographic
point