Register: Code Table D-2: Physical quantity kinds

stable

URI: http://codes.wmo.int/common/quantity-kind    

WMO No. 306 Vol I.3 Common Code-table D-2, Physical quantity kinds.

Contents

Name Notation Description Types Status
Aerodrome maximum wind gust speed aerodromeMaximumWindGustSpeed Maximum wind speed in the 10 minute period of observation. It... space and time quantity kind , quantity kind , Concept stable
Aerodrome mean wind direction aerodromeMeanWindDirection The mean true direction in degrees from which the wind is blo... space and time quantity kind , quantity kind , Concept stable
Aerodrome mean wind speed aerodromeMeanWindSpeed The mean speed of the wind over the 10-minute period immediat... space and time quantity kind , quantity kind , Concept stable
Aerodrome minimum horizontal visibility aerodromeMinimumHorizontalVisibility The minimum horizontal visibility that is reported when the h... space and time quantity kind , quantity kind , Concept stable
Aerodrome minimum visibility direction aerodromeMinimumVisibilityDirection When the minimum horizontal visibility is reported, its gener... space and time quantity kind , quantity kind , Concept stable
Aeronautical prevailing horizontal visibility aeronauticalPrevailingHorizontalVisibility The greatest visibility value, observed in accordance with th... space and time quantity kind , quantity kind , Concept stable
Aeronautical visibility aeronauticalVisibility The greater of:(a) The greatest distance at which a black obj... space and time quantity kind , quantity kind , Concept stable
Air temperature airTemperature The temperature indicated by a thermometer exposed to the air... thermodynamics quantity kind , quantity kind , Concept stable
Altimeter setting (QNH) altimeterSettingQnh Altimeter setting (also known as QNH) is defined as barometri... mechanics quantity kind , quantity kind , Concept stable
Atmospheric pressure atmosphericPressure The atmospheric pressure on a given surface is the force per ... mechanics quantity kind , quantity kind , Concept stable
Depth of runway deposit depthOfRunwayDeposit Depth of deposit on surface of runway space and time quantity kind , quantity kind , Concept stable
Dew-point temperature dewPointTemperature The temperature to which a given air parcel must be cooled at... thermodynamics quantity kind , quantity kind , Concept stable
Geometric height geometricHeight Vertical distance (Z) of a level, a point or an object consid... space and time quantity kind , quantity kind , Concept stable
Height of base of cloud heightOfBaseOfCloud For a given cloud or cloud layer, vertical distance (measured... space and time quantity kind , quantity kind , Concept stable
Horizontal visibility horizontalVisibility The greatest distance determined in the horizontal plane at t... space and time quantity kind , quantity kind , Concept stable
Maximum diameter of hailstones maximumDiameterOfHailstones Maximum diameter (size) of hailstone (observed). space and time quantity kind , quantity kind , Concept stable
Maximum wind gust speed maximumWindGustSpeed Nominal maximum speed of wind during a given period; usually ... thermodynamics quantity kind , quantity kind , Concept stable
Pressure tendency pressureTendency Rate of change of atmospheric pressure with respect to time. mechanics quantity kind , quantity kind , Concept stable
Runway contamination coverage runwayContaminationCoverage Proportion of runway that is contaminated. A runway is consid... quantity kind , Concept stable
Runway friction coefficient runwayFrictionCoefficient Quantitative assessment of friction coefficient of runway sur... quantity kind , Concept stable
Runway visual range (RVR) runwayVisualRangeRvr The range over which the pilot of an aircraft on the centre l... space and time quantity kind , quantity kind , Concept stable
Sea surface temperature seaSurfaceTemperature Temperature of the sea water at surface. thermodynamics quantity kind , quantity kind , Concept stable
Snow depth water equivelant snowDepthWaterEquivalent Depth of lying snow expressed as measure of equivalent depth ... space and time quantity kind , quantity kind , Concept stable
Total precipitation totalPrecipitation Total amount of precipitation measured over a defined period. mechanics quantity kind , quantity kind , Concept stable
Total precipitation rate totalPrecipitationRate Rate of total precipitation (e.g. combination of convective a... mechanics quantity kind , quantity kind , Concept stable
Total snow depth totalSnowDepth Depth of lying snow. space and time quantity kind , quantity kind , Concept stable
UV index uvIndex Global Solar UVI is formulated using the International Commis... quantity kind , Concept stable
Vertical visibility verticalVisibility Maximum distance at which an observer can see and identify an... space and time quantity kind , quantity kind , Concept stable
Wind direction windDirection Direction from which wind is blowing. space and time quantity kind , quantity kind , Concept stable
Wind speed windSpeed Ratio of the distance covered by the air to the time taken to... space and time quantity kind , quantity kind , Concept stable