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 |
HIGH_CLOUD |
A <CLOUD> of the genus cirrus, cirrocumulus, or cirrostratus; high cloud. Also the top of a <CLOUD> of the genus cumulonimbus or, occasionally, altostratus. |
522 |
PR |
[WMO407, Section II.2.1.2] |
[GMET, "cloud classification", 2, "high clouds"] |
STD 2005/06/07 |
LOW_CLOUD |
A <CLOUD> of the genus stratocumulus or stratus; low cloud. Also the base of a <CLOUD> of the genus cumulus; cumulonimbus; or, occasionally, nimbostratus. |
654 |
PR |
[WMO407, Section II.2.1.2] |
[GMET, "cloud classification", 2, "low clouds"] |
STD 2005/06/07 |
MIDDLE_CLOUD |
A <CLOUD> of the genus altocumulus, altostratus, or nimbostratus; middle cloud. Also portions of a <CLOUD> of the genus cumulus or cumulonimbus. |
739 |
PR |
[WMO407, Section II.2.1.2] |
[GMET, "cloud classification", 2, "middle clouds"] |
SUBM 2009/06/04 |
DUST_STORM |
An ensemble of <PARTICLE>s of <DUST> energetically lifted to great <<HEIGHT_AGL>>s by a strong and turbulent <WIND>; dust-storm. |
|
IR |
[WMO306, Volume I.1, Part A, Code Table 4678, Column 9] |
[AWS, Table 2-8] |
SUBM 2009/06/04 |
SANDSTORM |
An ensemble of <PARTICLE>s of <SAND> energetically lifted to great <<HEIGHT_AGL>>s by a strong and turbulent <WIND>; sandstorm. |
|
IR |
[WMO306, Volume I.1, Part A, Code Table 4678, Column 8] |
[AWS, Table 2-7] |
SUBM 2009/06/04 |
FUNNEL_CLOUD |
<CLOUD> formed at the core of a waterspout or tornado vortex, sometimes extending right down to the <PLANETARY_SURFACE> of the <EARTH>, caused by the reduction of <<ATM_PRESSURE>> at the centre of the vortex; funnel cloud. |
|
IR |
[WMO306, Volume I.1, Part A, Code Table 4678, Column 7] |
[AWS, Table 2-6] |
SUBM 2009/06/04 |
SQUALL |
An abrupt and large increase in <<WIND_SPEED>> with a duration on the order of minutes that diminishes rather suddenly; squall. |
|
IR |
[WMO306, Volume I.1, Part A, Code Table 4678, Column 6] |
[AWS, Table 2-5] |
SUBM 2009/06/04 |
DUST_DEVIL |
An ensemble of <PARTICLE>s of <DUST> or <SAND>, sometimes accompanied by small litter, raised from the ground in the form of a whirling column of varying <<HEIGHT>> with a small <<OUTSIDE_DIAMETER>> and an approximately vertical axis; dust devil. |
|
IR |
[WMO306, Volume I.1, Part A, Code Table 4678, Column 5] |
[AWS, Table 2-4] |
STD 2005/06/07 |
WIND_VANE |
A visual <DEVICE> used to indicate or measure <<WIND_DIRECTION>>; wind vane. |
1418 |
PR |
[WMO182, W1240, "wind vane"] |
|
STD 2005/06/07 |
WIND_ROSE_PROPERTY_SET |
A <PROPERTY_SET> describing the relative frequency of the <<WIND_DIRECTION>>, and sometimes the frequencies of the <<WIND_SPEED>>s for different directions, experienced at a given <LOCATION> over a defined period of record; wind rose property set. |
1416 |
PR |
[WMO182, W1120, "wind rose"] |
|
STD 2005/06/07 |
WIND |
A <CURRENT> of <AIR> moving relative to a <PLANETARY_SURFACE>; wind. Unless otherwise specified, usually only the horizontal component is considered. |
1413 |
PR |
[WMO182, W0930, "wind"] |
|
STD 2005/06/07 |
WARM_FRONT |
An <ATMOSPHERIC_FRONT> between warm and cold <AIR_MASS>s that moves so that the warmer <AIR> replaces the colder <AIR>; warm front. |
1345 |
PR |
[WMO182, W0100, "warm front"] |
|
STD 2005/06/07 |
TYPHOON |
A <TROPICAL_CYCLONE> with maximum sustained <<WIND_SPEED>>s of 33 metres per second or greater near the centre and that is located in the western North Pacific; typhoon. |
1296 |
PR |
[WMO182, T1990, "typhoon"] |
|
STD 2005/06/07 |
TROPOSPHERE F |
The <ATMOSPHERE_REGION> of the <EARTH>, extending from the <PLANETARY_SURFACE> to the <TROPOPAUSE>; troposphere. |
1286 |
PR |
[WMO182, T1640, "troposphere"] |
|
STD 2005/06/07 |
TROPOPAUSE F |
The <BOUNDARY> between the <TROPOSPHERE> and the <STRATOSPHERE> where an abrupt change in the <<TEMPERATURE_LAPSE_RATE>> usually occurs; tropopause. |
1285 |
PR |
[WMO182, T1600, "tropopause"] |
|
STD 2005/06/07 |
TROPICAL_CYCLONE |
A non-frontal, synoptic-scale <CYCLONE> originating over a tropical or sub-tropical <WATERBODY> with organized convection and definite cyclonic surface <WIND> circulation; tropical cyclone. |
1284 |
PR |
[WMO182, T1510, "tropical cyclone"] |
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STD 2005/06/07 |
THUNDERSTORM |
A storm with thunder and <LIGHTNING> produced by electrically charged cumulonimbus <CLOUD>s and usually accompanied by heavy <RAIN> and/or <HAIL>; thunderstorm. |
1241 |
PR |
[WMO182, T0940, "thunderstorm"] |
|
STD 2005/06/07 |
TEMPERATURE_INVERSION- _LAYER |
A layer in an <ATMOSPHERE> where the <<AIR_TEMPERATURE>> increases with <<HEIGHT_AGL>>; temperature inversion layer. |
1214 |
PR |
[WMO182, T0210, "temperature inversion"] |
|
STD 2005/06/07 |
STRATOSPHERE F |
The <ATMOSPHERE_REGION> of the <EARTH> extending from the <TROPOPAUSE> to the <STRATOPAUSE> in which the <<AIR_TEMPERATURE>> generally increases with <<HEIGHT_AGL>>; stratosphere. |
1176 |
PR |
[WMO182, S3030, "stratosphere"] |
|
STD 2005/06/07 |
STRATOPAUSE F |
The top of the <TEMPERATURE_INVERSION_LAYER>, if it exists, that form the upper limit of the <STRATOSPHERE>; stratopause. |
1175 |
PR |
[WMO182, S3020, "stratopause"] |
|
STD 2005/06/07 |
STATIONARY_FRONT |
An <ATMOSPHERIC_FRONT> between warm and cold <AIR_MASS>s that is moving at a <<SPEED>> less than 2,575 metres per second (five knots); stationary front. |
1160 |
PR |
[WMO182, S2760, "stationary front"] |
|
STD 2005/06/07 |
SNOW_GRAINS |
<SOLID_PRECIPITATION> of very small opaque white <PARTICLE>s of <ICE> that fall from a <CLOUD> and are fairly flat or elongated with <<OUTSIDE_DIAMETER>>s generally less than 1 millimetre; snow grains. Snow grains are the solid equivalent of <DRIZZLE>. |
1127 |
PR |
[WMO182, S1610, "snow grains"] |
|
STD 2005/06/07 |
RAIN |
<PRECIPITATION> of <PARTICLE>s of liquid <WATER> either in the form of drops of more than 0,5 millimetres in <<OUTSIDE_DIAMETER>> or in the form of widely scattered drops; rain. |
958 |
PR |
[WMO182, R0730, "rain"] |
|
STD 2005/06/07 |
PLUME |
An identifiable stream of <AIR> with an <<AIR_TEMPERATURE>> or composition different from that of its environment; plume. EXAMPLE <SMOKE> from a <CHIMNEY>. |
882 |
PR |
[WMO182, P0820, "plume"] |
|
STD 2005/06/07 |
OCCLUDED_FRONT |
A composite of two <ATMOSPHERIC_FRONT>s formed as a <COLD_FRONT> overtakes a <WARM_FRONT> or a <STATIONARY_FRONT>; occluded front. |
823 |
PR |
[WMO182, O0070, "occluded front"] |
|
STD 2005/06/07 |
LIGHTNING |
A luminous manifestation accompanying a sudden electrical discharge that takes place from or inside <CLOUD>s or, less often, from tall <OBJECT>s on the <PLANETARY_SURFACE> and/or from <MOUNTAIN>s to <CLOUD>s; lightning. |
634 |
PR |
[WMO182, L0530, "lightning"] |
|
STD 2005/06/07 |
IONOSPHERE |
The <ATMOSPHERE_REGION> of the <EARTH> characterized by ions and free electrons existing in sufficient quantities to reflect electromagnetic waves and located roughly between the <<ALTITUDE_MSL>>s of 70 to 500 kilometres; ionosphere. |
585 |
PR |
[WMO182, I0900, "ionosphere"] |
|
STD 2005/06/07 |
ICE_PELLETS |
<SOLID_PRECIPITATION> of transparent or translucent <PARTICLE>s of <ICE> that are spherical or irregular, rarely conical, and that have an <<OUTSIDE_DIAMETER>> of 5 millimetres or less; ice pellets. <SMALL_HAIL> is a form of ice pellets. |
553 |
PR |
[WMO182, I0150, "ice pellets"] |
|
STD 2005/06/07 |
HURRICANE |
A warm core <TROPICAL_CYCLONE> with a maximum surface <<WIND_SPEED>> of 33 metres per second or greater in the North Atlantic, the Caribbean, the Gulf of Mexico, and in the eastern North Pacific; hurricane. |
539 |
PR |
[WMO182, H0860, "hurricane"] |
|
STD 2005/06/07 |
HOAR_FROST |
A deposit of <ICE> (hoar crystals) that generally assumes the form of scales, needles, feathers, or fans and that forms on <OBJECT>s the <SURFACE>s of which are sufficiently cooled, usually by nocturnal radiation, to bring about deposition of the water vapour contained in the ambient <AIR>; hoar frost. |
527 |
PR |
[WMO182, H0630, "hoar frost"] |
|
STD 2005/06/07 |
HAIL |
<SOLID_PRECIPITATION> of either transparent or partly or completely opaque <PARTICLE>s of <ICE> (hailstones), usually spherical, conical, or irregular in form and of <<OUTSIDE_DIAMETER>> generally between 5 and 50 millimetres, that falls from a <CLOUD> either separately or agglomerated into irregular lumps; hail. |
506 |
PR |
[WMO182, H0030, "hail"] |
|
STD 2005/06/07 |
ATMOSPHERIC_FRONT |
The <BOUNDARY> or transition zone between <AIR_MASS>s of different <<AIR_DENSITY>>s; atmospheric front. |
105 |
PR |
[WMO182, F1290, "front", 1] |
|
STD 2005/06/07 |
DRIZZLE |
Fairly uniform <PRECIPITATION> in very fine droplets (<<OUTSIDE_DIAMETER>> less than 0,5 millimetres) that are located very close to one another and are falling from a <CLOUD>; drizzle. |
350 |
PR |
[WMO182, D1140, "drizzle"] |
|
STD 2005/06/07 |
DIAMOND_DUST |
<SOLID_PRECIPITATION> that falls from a clear sky in very small crystals of <ICE>, often so tiny that they appear to be suspended in the <AIR>; diamond dust. |
326 |
PR |
[WMO182, D0530, "diamond dust"] |
|
STD 2005/06/07 |
CYCLONE |
An <ATMOSPHERE_REGION> in which the <<ATM_PRESSURE>>s are lower than those of the surrounding <ATMOSPHERE_REGION> at the same <<ALTITUDE_MSL>>; cyclone. A cyclone is also known as a depression. |
303 |
PR |
[WMO182, D0230, "depression/cyclone"] |
|
STD 2005/06/07 |
COLD_FRONT |
An <ATMOSPHERIC_FRONT> between warm and cold <AIR_MASS>s that is not an <OCCLUDED_FRONT> and that moves so that the colder <AIR> replaces the warmer <AIR>; cold front. |
254 |
PR |
[WMO182, C2210, "cold front"] |
|
STD 2005/06/07 |
CLOUD_TOP |
The highest level in a specific <CLOUD> or <CLOUD_LAYER> where the <ATMOSPHERE> contains a perceptible quantity of <PARTICLE>s of the <CLOUD>; cloud top. |
251 |
PR |
[WMO182, C1960, "cloud top"] |
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STD 2005/06/07 |
CLOUD_LAYER |
An arrangement of <CLOUD>s, continuous or composed of separated <COMPONENT>s, where the <<CLOUD_BASE_LEVEL>>s are the same and the <<CLOUD_THICKNESS>>s are approximately the same; cloud layer. |
250 |
PR |
[WMO182, C1690, "cloud layer"] |
|
STD 2005/06/07 |
CLOUD |
A visible aggregate of minute droplets of <WATER>, <PARTICLE>s of <ICE>, or both, suspended in the <ATMOSPHERE> above the <PLANETARY_SURFACE> of the <EARTH>; cloud. |
248 |
PR |
[WMO182, C1450, "cloud"] |
|
STD 2005/06/07 |
AURORA |
Luminous phenomena, in the form of arcs, bands, draperies, and/or curtains in a high <ATMOSPHERE_REGION> caused by charged <PARTICLE>s from <SPACE>, mainly at high latitudes; aurora. |
113 |
PR |
[WMO182, A3090, "aurora"] |
|
SUBM 2009/06/04 |
HAZE |
A <LOCALIZED_ATM_SUSPENSION> consisting of small <PARTICLE>s that are invisible to the naked eye, but numerous enough to give the sky an opalescent appearance; haze. |
|
PR |
[WMO182, "haze"] |
[GMET, "haze"] |
STD 2005/06/07 |
FOG |
A suspension of very small, usually microscopic, droplets of <WATER> in the <AIR> that reduces the horizontal <<VISIBILITY_DISTANCE>> at a <PLANETARY_SURFACE>; fog. |
449 |
IR |
[WMO182, "fog"] |
|
STD 2005/06/07 |
MOSQUE |
An Islamic <WORSHIP_PLACE>; mosque. A mosque is also known as a masjid. |
771 |
IR |
[WCE, "mosque"] |
|
STD 2014/02/14 |
WATER_MAIN |
A main <PIPE> or conduit forming a <COMPONENT> of a public or community <SYSTEM> of <PIPE>s and <VALVE>s conveying non-waste liquid <WATER> to all service connections. |
1479 |
IR |
[VDARCH, "water main"] |
|
STD 2014/02/14 |
WALL_STUD |
A slender, upright <STRUCTURAL_MEMBER> of wood or metal that is part of a series of such members forming the structural frame of a <WALL>; wall stud. |
1472 |
IR |
[VDARCH, "stud"] |
|
STD 2014/02/14 |
STRUCTURAL_MEMBER |
One of the constituent <COMPONENT>s into which a <STRUCTURE> may be resolved by analysis, having a unitary character and exhibiting a unique behaviour under an applied load; structural member. |
1471 |
IR |
[VDARCH, "structural member"] |
|
STD 2014/02/14 |
STRUCTURAL_COLUMN |
A rigid, relatively slender <STRUCTURAL_MEMBER> designed primarily to support axial, compressive loads applied at the member ends; structural column. |
1450 |
IR |
[VDARCH, "column"] |
|
STD 2014/02/14 |
STRUCTURAL_BEAM |
A rigid <STRUCTURAL_MEMBER> designed to carry and transfer transverse loads across space to supporting <COMPONENT>s; structural beam. |
1445 |
IR |
[VDARCH, "beam"] |
|
STD 2005/06/07 |
AURORA_OVAL |
The locus of structured <AURORA> around each <PLANETARY_MAGNETIC_POLE> of the <EARTH>, roughly forming an oval band between 60 and 70 degrees latitude in both northern and southern hemispheres; aurora oval. |
114 |
IR |
[TASC] |
|
STD 2005/06/07 |
INTERPLANETARY_MAGNETIC- _FIELD |
The <MAGNETIC_FIELD> in a <STAR_SYSTEM> carried with its <STELLAR_WIND>; interplanetary magnetic field. |
582 |
IR |
[TASC] |
|