Status
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Label
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Concept definition
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Code
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Ref type
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Reference ▾
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Supplemental references
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STD 2005/06/07 |
IONOSPHERIC_D_REGION |
The lowest daytime <REGION> of the <IONOSPHERE> characterized by weak concentrations of ions and located roughly between the <<ALTITUDE_MSL>>s of 50 and 90 kilometres; ionospheric D-region. An ionospheric D-region is also known as an ionospheric D-layer. |
588 |
IR |
[TASC] |
|
STD 2005/06/07 |
IONOSPHERIC_E_REGION |
A daytime <REGION> of the <IONOSPHERE> characterized by concentrations of O2+ and NO+ ions and located roughly between the <<ALTITUDE_MSL>> s of 85 and 140 kilometres; ionospheric E-region. An ionospheric E-region is also known as an ionospheric E-layer. |
589 |
IR |
[TASC] |
|
STD 2005/06/07 |
IONOSPHERIC_F1_REGION |
A daytime <REGION> of the <IONOSPHERE>, above the <IONOSPHERIC_E_REGION>, characterized by weak concentrations of O2+ ions and located roughly between the <<ALTITUDE_MSL>>s of 120 and 200 kilometres; ionospheric F1-region. An ionospheric F1-region is also known as an ionospheric F1-layer. |
590 |
IR |
[TASC] |
|
STD 2005/06/07 |
IONOSPHERIC_F2_REGION |
A daytime <REGION> of the <IONOSPHERE>, above the <IONOSPHERIC_E_REGION>, characterized by weak concentrations of O2+ ions and located roughly between the <<ALTITUDE_MSL>>s of 200 and 1 500 kilometres; ionospheric F2-region. An ionospheric F2-region is also known as an ionospheric F2-layer. |
591 |
IR |
[TASC] |
|
STD 2005/06/07 |
SUNSPOT |
A relatively cool and dark appearing <REGION> on the photosphere of the <SUN>; sunspot. |
1191 |
IR |
[TASC] |
|
STD 2014/02/14 |
OCEAN_FLOOR_TOPOGRAPHIC- _CONFIGURATION |
A <WATERBODY_FLOOR_TOPOGRAPHIC_CONFIGURATION> of an <OCEAN_FLOOR>. |
1440 |
IR |
[SUFN, page 2-1, sub-paragraph I-B; "undersea feature"] |
|
STD 2005/06/07 |
WATERBODY_FLOOR_PROVINCE |
A <WATERBODY_FLOOR_REGION> identifiable by shared physiographic characteristics that are markedly in contrast with those in the adjacent <WATERBODY_FLOOR_REGION>s; waterbody floor province. |
1362 |
PR |
[SUFN, "province"] |
|
STD 2005/06/07 |
TURBID_REGION |
A <WATERBODY_REGION> with increased <<WATER_DIFFUSE_TURBIDITY>>; turbid region. |
1294 |
IR |
[SP35, "turbidity"] |
|
STD 2005/06/07 |
TSUNAMI |
A long-period <WATER_WAVE> produced by a submarine earthquake and/or volcanic eruption; tsunami. |
1289 |
IR |
[SP35, "tsunami"] |
|
STD 2005/06/07 |
SOUND_CHANNEL_AXIS |
The alignment axis in a <SOUND_CHANNEL> determined by the <<DEPTH_BELOW_WATERBODY_SURFACE>> at which the minimum <<WATERBODY_SOUND_SPEED>> occurs. |
1140 |
IR |
[SP35, "sound channel axis"] |
|
STD 2005/06/07 |
ICE_SLUDGE |
Spongy whitish lumps of <ICE> a few centimetres in <<OUTSIDE_DIAMETER>> that are floating on the <WATERBODY_SURFACE> of a shallow <SEA>; ice sludge. |
555 |
IR |
[SP35, "sludge"] |
|
STD 2005/06/07 |
SEAMOUNT |
A <WATERBODY_FLOOR_PINNACLE> rising 1 000 metres or more from the <WATERBODY_FLOOR> of a <SEA> or <OCEAN> and of limited extent across its summit; seamount. |
1075 |
IR |
[SP35, "seamount"] |
|
STD 2005/06/07 |
WATERBODY_SURFACE_SLICK |
A <WATERBODY_SURFACE_REGION> that is variable in size and markedly different in appearance (for example: in colour and/or oiliness) from adjacent <WATERBODY_SURFACE_REGION>s; waterbody surface slick. |
1375 |
IR |
[SP35, "sea slick"] |
|
STD 2005/06/07 |
RIP_CURRENT |
A strong, narrow, surface <WATER_CURRENT> flowing away from a <SHORELINE>; rip current. |
999 |
IR |
[SP35, "rip current"] |
|
STD 2005/06/07 |
REVERBERATION |
Sound waves scattered back towards their source from an acoustically reflective <SURFACE> or volume; reverberation. |
992 |
IR |
[SP35, "reverberation"] |
|
STD 2005/06/07 |
RAY_PATH |
An imaginary <LINE> along which energy associated with a <LOCATION> on a wave front moves; ray path. |
964 |
IR |
[SP35, "ray path"] |
|
STD 2005/06/07 |
PROMONTORY |
A high point of <LAND> extending into a <WATERBODY>; promontory. |
914 |
IR |
[SP35, "promontory"] |
|
STD 2005/06/07 |
PREVAILING_CURRENT |
A <WATERBODY_CURRENT> most frequently observed during a given observation period, usually a month, season, or year; prevailing current. |
909 |
IR |
[SP35, "prevailing current"] |
|
STD 2005/06/07 |
PRESSURE_ICE |
<ICE> located in a <SEA>, <RIVER>, or <LAKE> that has been deformed or altered by the lateral stresses of any combination of <WIND>, <TIDE>s, <WATER_WAVE>s, and <SURF>; pressure ice. |
908 |
IR |
[SP35, "pressure ice"] |
|
STD 2005/06/07 |
PORPOISE |
A small to moderate sized member of the order Cetacea, suborder Odontoceti, family Phocaenidae; porpoise. |
893 |
IR |
[SP35, "porpoise"] |
|
STD 2005/06/07 |
POD |
A <SET> of two or more seals or <WHALE>s closely clustered together; pod. |
884 |
IR |
[SP35, "pod"] |
|
STD 2005/06/07 |
PLATEAU |
A relatively flat <TERRAIN_SURFACE_REGION> that falls off gradually on at least one side; plateau. |
881 |
IR |
[SP35, "plateau"] |
|
STD 2005/06/07 |
PLANKTON_BLOOM |
An enormous concentration of <PLANKTON> in a <WATERBODY>, caused either by an explosive or a gradual multiplication and usually producing an obvious change in the physical appearance of the <WATERBODY_SURFACE_REGION>, such as discolouration; plankton bloom. |
877 |
IR |
[SP35, "plankton bloom"] |
|
STD 2005/06/07 |
PHOSPHORESCENT_REGION |
A phosphorescent <WATERBODY_REGION>. |
864 |
IR |
[SP35, "phosphoresence"] |
|
STD 2005/06/07 |
PERMAFROST |
A layer of <SOIL> or <BEDROCK> at a variable <<DEPTH_BELOW_SURFACE_LEVEL>> beneath the <SURFACE> of the <LAND> in which the <<TEMPERATURE>> has been below freezing continuously from a few to thousands of years; permafrost. |
855 |
IR |
[SP35, "permafrost"] |
|
STD 2005/06/07 |
ISTHMUS |
A <TERRAIN_STRIP> that is bordered on both sides by <WATERBODY>s and that connects two larger bodies of <LAND>; isthmus. |
596 |
IR |
[SP35, "isthmus"] |
|
STD 2005/06/07 |
INLET |
A short, narrow <WATERCOURSE> connecting a <MARINE_BAY> or <LAGOON> with a <SEA>; inlet. |
574 |
IR |
[SP35, "inlet"] |
|
STD 2005/06/07 |
ICE_KEEL |
An irregular, linear, downward extension of <ICE> formed where two moving masses of <ICE> collide on a <WATERBODY>; ice keel. |
551 |
IR |
[SP35, "ice keel"] |
|
STD 2005/06/07 |
CAY |
A small insular <TRACT>, usually of <SAND> or <CORAL>, with scant <VEGETATION>; cay. A cay is also known as a small coral shoal. |
218 |
IR |
[SP35, "cay"] |
|
STD 2005/06/07 |
CAVITATION |
The turbulent formation, generally mechanically induced and including growth and collapse, of bubbles in a fluid, occurring when the static pressure at any <LOCATION> in fluid flow is less than the fluid vapour pressure; cavitation. |
216 |
IR |
[SP35, "cavitation"] |
|
STD 2005/06/07 |
CAVITATION_NOISE |
The noise produced in a liquid by the collapse of bubbles that have been created by <CAVITATION>. |
217 |
IR |
[SP35, "cavitation noise"] |
|
STD 2005/06/07 |
FLUID_BOUNDARY_LAYER |
The layer of fluid in the immediate vicinity of a <SURFACE> where frictional forces control fluid flow; fluid boundary layer. |
447 |
IR |
[SP35, "boundary layer"] |
|
STD 2005/06/07 |
BIOLUMINESCENCE |
The production of light without sensible heat by <LIVING_ORGANISM>s as a result of chemical reaction either within cells or organs or extracellulary in some form of secretion; bioluminescence. |
140 |
IR |
[SP35, "bioluminescence"] |
|
STD 2005/06/07 |
BEACH |
The <SHORE> of a <WATERBODY> that consists of unconsolidated <MATERIAL>s (for example: <SAND> and/or small <STONE>s), including the <FORESHORE> and the <BACKSHORE_PRECISE>; beach. |
133 |
IR |
[SP35, "beach"] |
[FACC, Annex A: BA050] |
STD 2005/06/07 |
BATHYMETRIC_PROVINCE |
A <WATERBODY_FLOOR_PROVINCE> of homogeneous bathymetric characteristics; bathymetric province. |
131 |
IR |
[SP35, "bathymetric province"] |
|
STD 2005/06/07 |
WATERBODY_BASIN |
A delimited, principal division of a <WATERBODY>; waterbody basin. EXAMPLE <OCEAN_BASIN>. |
1353 |
IR |
[SP35, "basin"] |
|
STD 2005/06/07 |
ABYSS |
A <WATERBODY_FLOOR> with <<DEPTH_OF_WATERBODY_FLOOR>> greater than 549 metres (approximately 1 800 feet); abyss. |
2 |
IR |
[SP35, "abyss"] |
|
STD 2014/02/14 |
PARKING_METER |
A <METER>, usually coin-operated, receiving fees and registering the <<TIME_QUANTITY>> for which a <GROUND_VEHICLE> is allowed to park; parking meter. |
1460 |
IR |
[SOED, "parking meter"] |
|
STD 2014/02/14 |
SECCHI_DISK |
A circular material <OBJECT>, usually painted flat white, that is used to measure (subjectively) the <<DEPTH_BELOW_WATERBODY_SURFACE>> to which a <HUMAN> can see into a <WATERBODY>, in order to measure the transparency of the <WATER>; Secchi disk. |
1437 |
IR |
[SECCHI] |
|
STD 2005/06/07 |
STELLAR_WIND |
A high-speed stream of <STELLAR_ENERGETIC_PARTICLE>s in <SPACE>; stellar wind. |
1167 |
IR |
[SEC, "solar wind"] |
|
STD 2005/06/07 |
STELLAR_BURST_RADIO- _FREQUENCY_EMISSION |
A burst emission from a <STAR> at radio <<WAVELENGTH>>s that often sweep through a range of <<FREQUENCY>>s and last from minutes to days; stellar burst radio frequency emission. |
1164 |
IR |
[SEC, "burst"] |
[IPS] |
STD 2005/06/07 |
WATERFALL |
A vertical or nearly vertical descent of a <WATERCOURSE>; waterfall. |
1394 |
IR |
[S57A, Object: WATFAL] |
|
STD 2005/06/07 |
TUNNEL |
A passage under the <TERRAIN> that is open at both ends and usually contains a <LAND_TRANSPORTATION_ROUTE>; tunnel. |
1292 |
IR |
[S57A, Object: TUNNEL] |
|
STD 2005/06/07 |
TREE |
A woody-perennial <PLANT> that has a self-supporting main stem or trunk and a definite crown; tree. A tree-like <PLANT> may also be known as a tree. |
1279 |
PR |
[S57A, Object: TREPNT] |
|
STD 2005/06/07 |
TOWER |
A relatively tall, narrow <STRUCTURE>, which is usually of square, circular, or rectangular cross-section, that may either stand alone or may form part of another <STRUCTURE>; tower. |
1256 |
IR |
[S57A, Object: TOWERS] |
|
STD 2005/06/07 |
STORAGE_TANK |
A <CONTAINER> used for the storage of liquids or gases; storage tank. |
1174 |
PR |
[S57A, Object: TNKCON] |
|
STD 2005/06/07 |
TELEFERIC |
A transportation <SYSTEM> consisting of <LOAD_CABLE>s strung between <PYLON>s on which carrier units (for example: cars or buckets intended to transport <PERSONNEL>, <MATERIAL>, and/or <EQUIPMENT>) are suspended; teleferic. A teleferic is also known as an aerial cableway or aerial tramway. |
1212 |
IR |
[S57A, Object: TELPHC] |
|
STD 2005/06/07 |
SWEPT_REGION |
A <WATERBODY_REGION> that has been determined to be clear of navigational dangers to a specified depth; swept region. |
1204 |
PR |
[S57A, Object: SWPARE] |
|
STD 2005/06/07 |
SPRING |
A natural outflow of <WATER> from below the <LAND>; spring. |
1153 |
PR |
[S57A, Object: SPRING] |
|
STD 2005/06/07 |
SOUNDING |
A measured <<WATER_DEPTH>> or spot <<WATER_DEPTH>>; sounding. |
1141 |
PR |
[S57A, Object: SOUNDG] |
|