Register: Code Table D-2: Physical quantity kinds

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

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

Contents

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