Name: Coastline / Shoreline

Definition:
The line where a land mass is in contact with a body of water. (See also COASTLINE and SHORELINE .)

CC: BA010

Name: Coastline

Definition:
A line generally following the contact between a land mass and a body of water, based on the low water line, and used as a reference for measuring international boundaries such as Territorial Limits or Exclusive Economic Zones (EEZ). (See also COASTLINE_OR_SHORELINE and SHORELINE .)

CC: BA011

Name: Foreshore

Definition:
That part of the shore or beach which lies between the low water mark and the coastline/shoreline. The same condition may exist in non-contiguous off-shore areas. (See also NEARSHORE_PRECISE_IHO , BACKSHORE_PRECISE_IHO , and FORESHORE_PRECISE_IHO .)

CC: BA020

Name: Nearshore (Precise)

Definition:
Area between the 10 meter depth curve, and the low water line defined by either Mean Low Water Springs (MLWS) or Mean Low Low Water (MLLW) as defined by the National Authority. (See also FORESHORE , BACKSHORE_PRECISE_IHO , and FORESHORE_PRECISE_IHO .)

CC: BA021

Name: Backshore (Precise)

Definition:
Area between the normal limit of wave action above either Mean High Water Springs (MHWS) or Mean High High Water (MHHW) as defined by the National Authority, and the maximum limit of wave action. (See also FORESHORE , NEARSHORE_PRECISE_IHO , and FORESHORE_PRECISE_IHO .)

CC: BA022

Name: Foreshore (Precise)

Definition:
Area between the low water line defined by Mean Low Water Springs (MLWS) or Mean Low Low Water (MLLW) as appropriate, and the normal limit of wave action above Mean High Water Springs (MHWS) or Mean High High Water (MHHW) as appropriate. (See also FORESHORE , NEARSHORE_PRECISE_IHO , and BACKSHORE_PRECISE_IHO .)

CC: BA023

Name: Shoreline

Definition:
A line drawn along the normal limit of wave action above either Mean High Water Springs (MHWS) or Mean High High Water (MHHW) as defined by the National Authority. (See also COASTLINE and COASTLINE_OR_SHORELINE .)

CC: BA024

Name: Island

Definition:
A land mass smaller than a continent and surrounded by water.

CC: BA030

Name: Water (Except Inland)

Definition:
An area of water which normally has tidal fluctuations.

CC: BA040

Name: Beach

Definition:
The shore of the sea or lake, sandy or pebbly, brought up by the waves (including the foreshore area). (See also BACKSHORE_PRECISE_IHO , FORESHORE , FORESHORE_PRECISE_IHO and NEARSHORE_PRECISE_IHO .)

CC: BA050

Name: Dyke Crown

Definition:
A dyke (or dike) is an artificial embankment to contain or hold back water. The dyke crown is the topline of the dyke. (See also EMBANKMENT_OR_FILL .)

CC: BA051

Name: Beach Zone

Definition:
An area defined from the shoreline inland for a predetermined distance or to the first existence of a mode of transportation and from the shoreline seaward to a predetermined depth.

CC: BA060

Name: Harbour

Definition:
A natural or artificial improved body of water providing protection for vessels and anchorage and docking facilities.

CC: BB005

Name: Harbour Complex

Definition:
Complex object with possible components: many simple objects, and complex objects ANCHORAGE_COMPLEX_OBJECT, NAVIGATIONAL_MARK_FIXED and NAVIGATIONAL_MARK_AFLOAT.

CC: BB006

Name: Channel Edge

Definition:
Complex object with possible components: NAVIGATIONAL_MARK_FIXED and NAVIGATIONAL_MARK_AFLOAT.

CC: BB007

Name: Anchorage

Definition:
An area of water where vessels anchor or may anchor.

CC: BB010

Name: Anchorage (Complex Object)

Definition:
Complex object with possible components: ANCHORAGE, NAVIGATIONAL_MARK_FIXED and NAVIGATIONAL_MARK_AFLOAT.

CC: BB011

Name: Anchor Berth

Definition:
A designated area of water where a single vessel, sea plane, oil rig, etc. is anchored or may anchor.

CC: BB012

Name: Anchor

Definition:
Device normally placed on the sea bottom and attached to a cable or rope used to position a vessel, boat, or any other floating structure.

CC: BB019

Name: Ship Berth

Definition:
The place where a ship lies when secured to a pier, wharf, dolphin(s), or dock. It may be a designated place away from the coastline.

CC: BB020

Name: Mooring Trot

Definition:
Complex object with possible components: ANCHOR and NAVIGATIONAL_MARK_AFLOAT.

CC: BB021

Name: Basin (Body of Water)

Definition:
An enclosure containing water for a dock for ships.

CC: BB022

Name: Bollard

Definition:
A post on a wharf used for fastening mooring lines.

CC: BB030

Name: Breakwater / Groin

Definition:
A structure which protects a harbour or beach from forces of the sea. (See also BREAKWATER , GROIN , JETTY , and MOLE .)

CC: BB040

Name: Breakwater

Definition:
A structure which protects a shore area, harbour, anchorage, or basin from sea waves or swells by preventing them from reaching the protected area or reducing their magnitude. (See also GROIN , JETTY and MOLE .)

CC: BB041

Name: Maritime Mole

Definition:
A loading and discharge place for vessels. It is usually a substantial masonry structure, and often serves as a breakwater on its outer side while offering facilities for ships in its inner side. (See also BREAKWATER , GROIN , and JETTY .)

CC: BB042

Name: Groin

Definition:
A structure which normally projects outward from a shoreline and which protects a beach from erosion by disrupting the longshore movement of sand and other sediments, not by preventing waves from reaching the shoreline. (See also JETTY , BREAKWATER , and MOLE .)

CC: BB043

Name: Calling-In Point

Definition:
A specified point some distance from the harbour at which a vessel's navigator notifies the harbour authority of the ship's position. (Note that this is not the same as WAYPOINT_OR_REPORTING_CALLING_IN_POINT which is for aircraft only.)

CC: BB050

Name: Police Station, Maritime

Definition:
A structure housing a governmental department established to maintain order, enforce the law, and prevent and detect crime in a harbor or coastal region. (See also POLICE_STATION .)

CC: BB070

Name: Mooring / Warping Facility

Definition:
A structure used for mooring/warping a ship or as protection for harbour constructions.

CC: BB079

Name: Mooring Dolphin

Definition:
A post or group of posts used for mooring, warping a ship or as an aid to navigation.

CC: BB080

Name: Shoreline Construction

Definition:
A fixed (not afloat) artificial structure attached to the land. Shoreline constructions are normally used for berthing and protection.

CC: BB081

Name: Drydock

Definition:
A structure, providing support for a vessel, which has a means of removing water so that the bottom of the vessel can be exposed.

CC: BB090

Name: Fish Stakes

Definition:
Poles or stakes placed in shallow water to catch fish.

CC: BB100

Name: Fishing Harbour

Definition:
A harbour which is primarily used by fishing vessels.

CC: BB105

Name: Fish Traps / Fish Weirs

Definition:
A fence or enclosure set in water to catch fish.

CC: BB110

Name: Tunny (Tuna) Nets Area

Definition:
An area where nets used for catching tunny (tuna) may be found.

CC: BB111

Name: Gridiron

Definition:
A flat frame, usually of parallel timber baulks, erected on the foreshore so that a vessel may dry out on it for painting or repair at low water.

CC: BB115

Name: Jetty

Definition:
A man-made barrier built out into, or in, the water primarily to restrain or direct currents and waves. (See also BOARDWALK , BREAKWATER , and GROIN .)

CC: BB140

Name: Landing Place

Definition:
A place on shore where landing from the sea is possible.

CC: BB150

Name: Landing Stairs

Definition:
Steps at the shoreline as the connection between land and water on different levels.

CC: BB151

Name: Maritime Station / Maritime Signal Station

Definition:
A facility occupied by a governmental (maritime related) or harbour authority, providing specific services to vessels. A signal station is a structure (building, tower, mast, etc.), which conveys information visually from station to ship.

CC: BB155

Name: Mooring Ring

Definition:
A metal ring attached to a structure and used to secure a vessel.

CC: BB160

Name: Offshore Loading Facility

Definition:
A facility located offshore for loading and unloading cargo. (See also OFFSHORE_PLATFORM_SITE_CLEARED .)

CC: BB170

Name: Oyster Bed / Mussel Bed

Definition:
A place in shallow water where oysters and mussels breed and may be cultivated.

CC: BB180

Name: Pier / Wharf / Quay

Definition:
A structure primarily used as berthing places for vessels, which may include buildings and related structures.

CC: BB190

Name: Fender Cushion

Definition:
A protective structure designed to cushion the impact of a vessel and prevent damage.

CC: BB198

Name: Floating Dock

Definition:
A dock which normally consists of a bottom pontoon, on which a ship can be lifted out of the water, and two side walls to give stability to the bottom pontoon.

CC: BB199

Name: Pump Out Facility

Definition:
A place on land to where ships can pump waste liquids.

CC: BB200

Name: Small Craft Facility

Definition:
An installation with a certain function or service generally of interest for small craft or pleasure boats.

CC: BB201

Name: Ice Boom

Definition:
A floating barrier, constrained by anchor(s), 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. (See also BOOM .)

CC: BB202

Name: Ramp (Maritime)

Definition:
A partially submerged hard surfaced area on a shoreline for launching and retrieving vessels or vehicles. (See also RAMP .)

CC: BB220

Name: Log Ramp

Definition:
An inclined plane used to dump logs into the water for transport, or to haul logs out of the water for processing.

CC: BB221

Name: Rip Rap

Definition:
A loose assemblage of broken stones or similar material erected in water or on soft ground as a foundation or to protect the underlying surface from erosion.

CC: BB225

Name: Revetment (Shore Protection)

Definition:
Facing of stone or other material 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.

CC: BB226

Name: Seawall

Definition:
A structure built to protect the shore from erosion.

CC: BB230

Name: Slipway / Patent Slip

Definition:
A prepared slope for launching and recovering vessels.

CC: BB240

Name: Watering Place

Definition:
A place where vessels can replenish their water supply.

CC: BB250

Name: Ship Storage Area

Definition:
A defined maritime area intended for long-term ship anchorage and storage.

CC: BB260

Name: Shipyard

Definition:
A place where ships are built or repaired.

CC: BB270

Name: Yacht Club / Sailing Club

Definition:
The buildings and grounds and docks of a group with members that promotes and supports yachting, sailing and boating.

CC: BB280

Name: Maritime Navigation Aids

Definition:
An unspecified mixture of maritime Navigation Aid (NAVAID) objects which may be capable of elaboration or separation into individual object types based on status/type grouping information which was unable to be determined at the time of classification assignment.

CC: BC000

Name: Beacon

Definition:
A fixed visual or electronic aid to navigation.

CC: BC010

Name: Navigation Buoy

Definition:
A floating object, other than a lightship, moored or anchored to the bottom and serving as an aid to navigation.

CC: BC020

Name: Leading Light(s)

Definition:
Two or more lights forming a leading line of a course to be followed.

CC: BC030

Name: Navigation Line

Definition:
A line generated by the straight line connection between two navigational aids, and which extends towards the area of navigational interest.

CC: BC031

Name: Radar Line

Definition:
Mid-channel lines corresponding to the lines in harbour radar displays.

CC: BC032

Name: Radar Range

Definition:
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.

CC: BC033

Name: Lights in Line

Definition:
Lights marking area limits, cable alignment, alignments for anchoring, etc., not marking direction or course.

CC: BC035

Name: Navigation Light

Definition:
A specially constructed device which displays a luminous or lighted aid to navigation. (See also LIGHTHOUSE .)

CC: BC040

Name: Lighthouse

Definition:
A distinctive structure exhibiting light(s) designed to serve as an aid to navigation. (See also LIGHT .)

CC: BC050

Name: Navigation Marker

Definition:
A coloured (usually white) mark on a cliff, rock, wall, etc. which is a conspicuous landmark for marine navigation.

CC: BC055

Name: Light Sector

Definition:
A sector defined by bearings from seaward within which a light shows a specified character or colour, or is obscured.

CC: BC060

Name: Light Vessel / Lightship

Definition:
A distinctively marked manned vessel anchored or moored at a defined point to serve as an aid to navigation.

CC: BC070

Name: Perches / Stakes

Definition:
A small marker used to identify channels or to mark dangers such as rocks, shoals, etc. (See also PILE_OR_PILING_OR_POST and SNAGS_OR_STUMPS .)

CC: BC080

Name: Navigational Mark, Afloat

Definition:
A floating structure providing a navigational reference point.

CC: BC098

Name: Navigational Mark, Fixed

Definition:
A fixed structure providing a navigational reference point.

CC: BC099

Name: Leading Line

Definition:
A track which passes through one or more (usually two) clearly defined objects, along which a vessel can safely travel.

CC: BC100

Name: Fog Signal

Definition:
A warning signal transmitted by a vessel, or aid to navigation, during periods of low visibility. Also, the device producing such a signal.

CC: BC101

Name: Direction of Lateral Buoyage

Definition:
A point (symbol) placed in a dataset to indicate the direction defining a lateral buoyage system, such as the International Association of Lighthouse Authorities (IALA) Lateral System where the orientation is not otherwise discernable from the configuration of the shoreline and waterways due to limited geographic extent or other constraints.

CC: BC102

Name: Topmark

Definition:
A characteristic shape secured at the top of a buoy or beacon to aid in its identification.

CC: BC110

Name: Underwater Danger / Hazard

Definition:
A known underwater object or area, known to be dangerous to surface navigation.

CC: BD000

Name: Explosive Mine - Naval

Definition:
An explosive device used in naval warfare located on or below the sea. (See also EXPLOSIVE_CHARGE , EXPLOSIVE_MINE_LAND and MINEFIELD .)

CC: BD001

Name: Miscellaneous Underwater Object / Region

Definition:
An object or region on the sea floor or underwater that is not included in a more specific characterization. (See also UNDERWATER_DANGER_OR_HAZARD .)

CC: BD005

Name: Breakers

Definition:
Waves which break over off-lying shoals or near the shore. (See also OVERFALLS_OR_TIDE_RIPS .)

CC: BD010

Name: Crib

Definition:
A framework structure submerged or above water used to support pipelines, sewer lines, or outfalls.

CC: BD020

Name: Discoloured Water

Definition:
An area of water having a colour distinctly different from the surrounding water.

CC: BD030

Name: Eddies

Definition:
Circular movements of water running contrary to the main current.

CC: BD040

Name: Maritime Foul Ground

Definition:
A region of comparatively shallow water strewn with rocks, boulders, coral, wreckage, or other obstructions, making it unsuitable for anchoring, grounding, or ground fishing.

CC: BD050

Name: Kelp / Seaweed

Definition:
A site of large green, brown or dark red plants growing in a saltwater, typically cold, environment.

CC: BD060

Name: Obstruction (Nautical)

Definition:
A danger to navigation, the exact nature of which is not specified, or has not been determined.

CC: BD070

Name: Log Boom / Booming Ground

Definition:
A line of connected, floating timbers as across a river or enclosing a water area to keep logs ready for the sawmill from floating away; also, the enclosed area. (See also BOOM .)

CC: BD071

Name: Pontoon

Definition:
A broad, flat-bottomed floating structure without sheer, rectangular in shape, resembling a barge.

CC: BD072

Name: Oil Barrier

Definition:
A construction to dam oil flow on water.

CC: BD073

Name: Chain / Wire

Definition:
A physical connection between two independent objects, e.g., between: anchor and mooring buoy; anchor and offshore platform; hulk and bollard on land.

CC: BD074

Name: Fishing Facility

Definition:
A tool in shallow water for fishing purposes which can be an obstruction to ships in general.

CC: BD079

Name: Overfalls / Tide Rips

Definition:
Short, breaking waves occurring when a current passes over a shoal or other submarine obstruction or meets a contrary current or wind. Tide rips occur when one or more of the currents are tidal. (See also BREAKERS .)

CC: BD080

Name: Pile / Piling / Post

Definition:
A long, heavy timber or section of steel, concrete, etc., forced into the ground to serve as a support, as for a pier. (See also PERCHES_OR_STAKES and SNAGS_OR_STUMPS .)

CC: BD100

Name: Maritime Platform

Definition:
A flat surface raised above the sea, as a working stage for conducting offshore operations.

CC: BD110

Name: Offshore Platform

Definition:
A structure placed in the sea and used for production loading and discharge, or observation/research facilities. (See also OFFSHORE_LOADING_FACILITY .)

CC: BD111

Name: Production Installation

Definition:
An installation for the exploitation of natural resources.

CC: BD112

Name: Ledge

Definition:
A narrow, flat surface or shelf, especially one that projects, as from a wall of rock.

CC: BD119

Name: Reef

Definition:
A rocky or coral elevation at or near enough to the surface of the sea to be a danger to surface navigation.

CC: BD120

Name: Pingo

Definition:
A cone or dome shaped mound or hill of peat or soil, usually with a core of ice. It is found in tundra regions and is produced by the pressure of water or ice accumulating underground and pushing upward.

CC: BD121

Name: Cay

Definition:
A small insular region which may contain scant vegetation; usually composed of sand or coral. Often applied to smaller coral shoals.

CC: BD122

Name: Boom

Definition:
A floating barrier used to protect a river or harbor mouth or to create a sheltered area for storage purposes. (See also ICE_BOOM and LOG_BOOM_OR_BOOMING_GROUND .)

CC: BD123

Name: Submerged Rock

Definition:
An isolated rocky formation or a single large stone above or below the water surface.

CC: BD130

Name: Snags / Stumps

Definition:
A stem or a trunk of a tree below the surface of water. (See also PERCHES_OR_STAKES and PILE_OR_PILING_OR_POST .)

CC: BD140

Name: Maritime Oil / Gas Field

Definition:
A maritime area where oil and/or gas is pumped or otherwise removed from the ground. (See also OIL_OR_GAS_FIELD .)

CC: BD160

Name: Maritime Wreck

Definition:
The ruined remains of a vessel.

CC: BD180

Name: Hulk

Definition:
A permanently moored ship.

CC: BD181

Name: Depth Curve

Definition:
A navigational safety line indicating that no sounding of a lesser depth exists seaward of the line, but greater depths may occur on the shallow side of the line.

CC: BE010

Name: Depth Contour

Definition:
A line connecting points of equal depth at and below a shared vertical datum.

CC: BE015

Name: Depth Area

Definition:
Water area containing soundings within a defined range of values permanently at or below a reference vertical (e.g., sounding) datum.

CC: BE019

Name: Sounding

Definition:
A measured water depth or spot depth which has been referenced to a vertical datum.

CC: BE020

Name: Drying Line / Low Water Line

Definition:
Delineates an area that covers and uncovers depending on the elevation of the surface above the vertical datum and the current elevation of the water surface.

CC: BE021

Name: Sand Line

Definition:
Delineates an area of sand that covers and uncovers depending on the elevation of the surface above the vertical datum and the current elevation of the water surface.

CC: BE022

Name: Mud Line

Definition:
Delineates an area of mud that covers and uncovers depending on the elevation of the surface above the vertical datum and the current elevation of the water surface.

CC: BE023

Name: Bottom Return

Definition:
An object identified from the bottom background by side-scan sonar.

CC: BE029

Name: Track Swath

Definition:
Area of horizontal depth coverage recorded by SONAR array systems.

CC: BE030

Name: Track Line

Definition:
The path of travel as drawn on a chart and including the sounding information collected along the path.

CC: BE040

Name: Beach Profile

Definition:
A representation of the three dimensional relief of the water bottom (and adjacent terrain) along a line or series of connected lines generally established perpendicular to the local shoreline and based on depth contours, soundings, and other measurements of the depth at or below a shared vertical datum.

CC: BE050

Name: Bottom Characteristics

Definition:
Designations used on surveys and charts to indicate the consistency, colour, and classification of the sea floor, as determined by sampling methods.

CC: BF010

Name: Bottom Topographic Configuration

Definition:
A significant configuration of underwater bottom topography. (See also OCEAN_FLOOR_RIDGE , OCEAN_FLOOR_TRENCH and OCEAN_FLOOR_PINNACLE .)

CC: BF011

Name: Current Flow

Definition:
The flow direction of a current.

CC: BG010

Name: Tideway

Definition:
A natural watercourse in intertidal areas where water flows during the ebb and flow.

CC: BG011

Name: Water Turbulence

Definition:
The disturbance of water caused by the interaction of any combination of waves, currents, eddies, tidal streams, wind, shoal patches and obstructions.

CC: BG012

Name: Tide Gauge

Definition:
An instrument for measuring the height of the tide.

CC: BG020

Name: Tide Data Point

Definition:
Place for which tabulated tidal stream data are given.

CC: BG030

Name: Current Diagram

Definition:
A graph or chartlet showing the average speed of the flood and ebb currents at different periods of the current cycle.

CC: BG040

Name: Inland Water

Definition:
Any known inland waterway body, such as: lake/pond, reservoir, river/stream, etc. which may be capable of elaboration or separation into individual object types based on status/type grouping information which was unable to be determined at the time of classification assignment.

CC: BH000

Name: Inland Water Bottom Area

Definition:
A bathymetric area underlying the inland water surface.

CC: BH005

Name: Aqueduct

Definition:
A pipe or artificial channel designed to transport water from a remote source, usually by gravity. (See also PENSTOCK .)

CC: BH010

Name: Water Intake

Definition:
A place where water is taken into a channel or pipe from a river, or other body of water, e.g., to supply an aqueduct or water works. (See also WATER_INTAKE_TOWER .)

CC: BH011

Name: Bog

Definition:
A poorly drained or periodically flooded area, excluding tidal waters, with soil rich in plant residue.

CC: BH015

Name: Canal

Definition:
A man-made or improved natural waterway used for transportation.

CC: BH020

Name: Irrigation Ditch

Definition:
A channel constructed for the purpose of irrigation or drainage.

CC: BH030

Name: Filtration Beds / Aeration Beds

Definition:
An area containing layers of material used to filter or aerate water.

CC: BH040

Name: Fish Hatchery / Fish Farm / Marine Farm

Definition:
An enclosure of water used for the breeding and/or rearing of fish.

CC: BH050

Name: Flume

Definition:
An open, inclined channel which carries water for use in such operations as mining or logging.

CC: BH060

Name: Ford

Definition:
A shallow place in a body of water used as a crossing. (See also CROSSING .)

CC: BH070

Name: Fountain

Definition:
An artificial spring with water.

CC: BH075

Name: Hummock

Definition:
An area of higher elevation within a swamp, bog, or marsh.

CC: BH077

Name: Lake / Pond

Definition:
A body of water surrounded by land. (See also RESERVOIR .)

CC: BH080

Name: Land Subject to Inundation

Definition:
An area periodically covered by flood water, excluding tidal waters. (See also MARSH , MARSH_OR_SWAMP and SWAMP .)

CC: BH090

Name: Flooded Area

Definition:
Land subject to controlled inundation (i.e. flooded by the regulation of the level of water impounded by a dam or beaver dam), and is normally associated with permanently flooded areas in which trees are still standing. Also known as inundated land.

CC: BH091

Name: Marsh / Swamp

Definition:
A saturated area, at times covered with water, supporting vegetation which may include trees. (See also LAND_SUBJECT_TO_INUNDATION , MARSH and SWAMP .)

CC: BH095

Name: Moat

Definition:
A trench usually filled with water, that surrounds a body of land.

CC: BH100

Name: Penstock

Definition:
A pipeline or channel generally used by hydroelectric plants or water mills to transport water by gravity or under pressure. (See also AQUEDUCT .)

CC: BH110

Name: Underground Water / Phreatic Water

Definition:
Water situated underground but reachable by wells.

CC: BH115

Name: Rapids

Definition:
A place in a stream or river where the current is swift and the surface is usually broken by boulders and rocks.

CC: BH120

Name: Reservoir

Definition:
A man-made enclosure or area formed for the storage of water. (See also LAKE_OR_POND .)

CC: BH130

Name: Rice Field

Definition:
An area periodically covered with water which is used for growing rice.

CC: BH135

Name: River / Stream

Definition:
A natural flowing watercourse.

CC: BH140

Name: River Bank

Definition:
The limit line between the water area of a river and the area of land.

CC: BH141

Name: River Stream Vanishing Point

Definition:
Point at which a river or stream passes into the ground.

CC: BH145

Name: Salt Pan

Definition:
A flat area of natural surface salt deposits.

CC: BH150

Name: Salt Evaporator

Definition:
Shallow pools, normally man-made, used for the natural evaporation of water for the collection of salt.

CC: BH155

Name: Soda Evaporator

Definition:
Shallow pools, normally man-made, used for the natural evaporation of water for the collection of soda.

CC: BH156

Name: Sebkha

Definition:
A natural depression in arid or semi-arid regions whose bed is covered with salt encrusted clayey soil.

CC: BH160

Name: Spillway

Definition:
A passage for surplus water to run over or around a dam.

CC: BH165

Name: Spring / Water Hole

Definition:
A natural outflow of water from below the ground surface. (See also WELL and FOUNTAIN .)

CC: BH170

Name: Drinking Trough

Definition:
A man-made open water container for animal drinking.

CC: BH175

Name: Waterfall

Definition:
A vertical or nearly vertical descent of water.

CC: BH180

Name: Lagoon / Reef Pool

Definition:
Open body of water separated from the sea by a sand bank or coral reef.

CC: BH190

Name: Water Channel

Definition:
That part of a body of water, sometimes dredged, deep enough for navigation through an area otherwise not navigable. It is usually marked by a single or double line of navigational aids. (See also CHANNEL_EDGE .)

CC: BH191

Name: Miscellaneous Surface Drainage Object

Definition:
Surface drainage characterization which is of a minor nature and which is not included in a more specific characterization.

CC: BH200

Name: Inland Shoreline

Definition:
The land-water boundary for all inland hydrographic characterizations having shorelines, e.g., lakes, ponds and islands.

CC: BH210

Name: River Navigation Route

Definition:
The route in a river suitable for the largest allowed vessels. (See also CANAL_ROUTE .)

CC: BH501

Name: Boat Lift

Definition:
A mechanical device for lifting vessels between two levels other than a lock. (See also LOCK .)

CC: BI005

Name: Cistern

Definition:
A man-made container used for collection or storage of rain water.

CC: BI010

Name: Dam / Weir

Definition:
A permanent barrier across a watercourse used to impound water or to control its flow. (See also SLUICE_GATE .)

CC: BI020

Name: Hydrographic Lock

Definition:
An enclosure with a pair or series of gates used for raising or lowering vessels as they pass from one water level to another. (See also BOAT_LIFT and LOCK_BASIN .)

CC: BI030

Name: Lock Basin

Definition:
A wet dock in a waterway permitting a vessel (such as a ship) to pass from one level to another. (See also BOAT_LIFT and LOCK .)

CC: BI031

Name: Sluice

Definition:
An open, inclined conduit fitted with a gate for regulating water flow, which may be employed in mine ore washing operations. (See also DAM_OR_WEIR and SLUICE_GATE .)

CC: BI039

Name: Sluice Gate

Definition:
A gate used to regulate the flow of water. (See also DAM_OR_WEIR and SLUICE .)

CC: BI040

Name: Gate (Nautical)

Definition:
A structure that may be swung, drawn, or lowered to block an entrance or passageway.

CC: BI041

Name: Caisson

Definition:
The gate at the end of a drydock which excludes the water after pumping out the dock. The pumping engines are often located in the caisson. (See also DRYDOCK .)

CC: BI042

Name: Flood Barrage

Definition:
An artificial obstruction placed in a water course to increase the depth or to divert it.

CC: BI043

Name: Water Intake Tower

Definition:
A tower-like structure associated with a dam or water source and used for the intake of water. (See also WATER_INTAKE .)

CC: BI050

Name: Fish Ladder

Definition:
A series of ascending pools constructed to enable fish to swim upstream around or over a dam.

CC: BI060

Name: Gauging Station

Definition:
A device which monitors stream flow.

CC: BI070

Name: Boat Turning Basin

Definition:
A section of canal or navigable waterway in which a barge or other vessel can be turned.

CC: BI080

Name: Moraine

Definition:
An accumulation of soil and stone debris deposited by a glacier.

CC: BJ020

Name: Glacier

Definition:
A large mass of snow and ice moving slowly down a slope or valley from above the snowline.

CC: BJ030

Name: Ice Cliff

Definition:
The vertical face of a glacier or ice shelf.

CC: BJ040

Name: Ice Peak / Nunatak

Definition:
A rocky peak projecting above a surrounding ice field that may be perpetually covered with ice.

CC: BJ060

Name: Ice Shelf

Definition:
A sheet of thick ice, with level or undulating surface, attached to the land but mostly afloat which is bounded on the seaward side by an ICE_CLIFF.

CC: BJ065

Name: Ice Keel

Definition:
An irregular linear downward extension of sea ice formed where two moving areas of ice.

CC: BJ066

Name: Pack Ice

Definition:
An area of ice formed by the drifting and crushing together of floating pieces of ice.

CC: BJ070

Name: Polynya

Definition:
A large area of open water surrounded by sea ice.

CC: BJ075

Name: Polar Ice

Definition:
The heaviest, thickest form of ice over land or water. (See also SNOW_FIELD_OR_ICE_FIELD .)

CC: BJ080

Name: Snow Field / Ice Field

Definition:
A large area permanently covered by snow or ice over land or water. (See also POLAR_ICE .)

CC: BJ100

Name: Tundra

Definition:
A prairie-like region in the Arctic and Subarctic climatic zones which sustains a growth of low vegetation.

CC: BJ110

Name: Acoustic Station

Definition:
A device equipped for the collection of acoustic data.

CC: BK010

Name: Magnetic Station

Definition:
A device equipped for the collection of magnetic data.

CC: BK020

Name: Oceanographic Collection Device

Definition:
A device used for the collection of unspecified hydrographic and oceanographic data.

CC: BK030

Name: Maritime

Definition:
An unspecified mixture of maritime objects (e.g., ports, harbours, navigation aids, and maritime dangers/hazards) which may be capable of elaboration or separation into individual object types based on status/type grouping information which was unable to be determined at the time of classification assignment.

CC: BM000

Name: Water

Definition:
An unspecified mixture of water objects (e.g., inland water, water except inland, or ocean surface area) which may be capable of elaboration or separation into individual object types based on status/type grouping information which was unable to be determined at the time of classification assignment.

CC: BM100

Name: Hydrography

Definition:
An unspecified mixture of hydrographic characterizations which may be capable of elaboration or separation into individual object types based on status/type grouping information which was unable to be determined at the time of classification assignment.

CC: BM200

Name: Aqueduct Centerline / Nexus

Definition:
Abstract description of the connectivity afforded by an aqueduct; typically used for automated water route planning and analysis as well as logistics analysis. (See also AQUEDUCT .)

CC: BZ010

Name: Canal Centerline / Nexus

Definition:
Abstract description of the connectivity afforded by a CANAL; typically used for automated water route planning and analysis as well as logistics analysis. (See also CANAL_ROUTE .)

CC: BZ020

Name: Lake / Pond Centerline / Nexus

Definition:
Abstract description of the connectivity afforded by a LAKE_OR_POND among related RIVER_OR_STREAMs; typically used for automated water route planning and analysis, logistics analysis, and hydrologic flow/flooding analysis.

CC: BZ080

Name: Reservoir Centerline / Nexus

Definition:
Abstract description of the connectivity afforded by a RESERVOIR among related RIVER_OR_STREAMs; typically used for automated water route planning and analysis, logistics analysis, and hydrologic flow/flooding analysis.

CC: BZ130

Name: River / Stream Centerline / Nexus

Definition:
Abstract description of the connectivity afforded by a RIVER_OR_STREAM; typically used for automated water route planning and analysis, logistics analysis, and hydrologic flow/flooding analysis. (See also CANAL_ROUTE .)

CC: BZ140