absolute humidity

absolute humidity
a) The mass of water vapour in a given volume of air
b) In a system of moist air, the ratio of the mass of water vapor present to the volume occupied by the mixture, that is, the density of the water vapor component. Absolute humidity is usually expressed in grams of water vapor per cubic meter or, in engineering practice, in grains per cubic foot. Because this measure of atmospheric humidity is not conservative with respect to adiabatic expansion or compression, it is not commonly used by meteorologists. (Also called vapor concentration and vapor density). See relative humidity.

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  • absolute humidity — n the amount of water vapor present in a unit volume of air compare RELATIVE HUMIDITY * * * the actual amount of vapor in the atmosphere expressed in weight per unit volume …   Medical dictionary

  • absolute humidity — n. the mass of water vapor in a specified volume of air, usually measured in grams per cubic meter: cf. RELATIVE HUMIDITY …   English World dictionary

  • absolute humidity — noun : the amount of vapor actually present in the air usually expressed in grams per cubic meter or grains per cubic foot * * * the mass of water vapor present in a unit volume of moist air. Cf. dew point, mixing ratio, relative humidity,… …   Useful english dictionary

  • absolute humidity — absoliučioji medžiagos drėgmė statusas T sritis Standartizacija ir metrologija apibrėžtis Chemiškai nesujungto vandens masės ir medžiagos sausosios dalies tūrio dalmuo. atitikmenys: angl. absolute humidity; moisture content mass by volume vok.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • absolute humidity — absoliučioji medžiagos drėgmė statusas T sritis Standartizacija ir metrologija apibrėžtis Išgarinto (galimo pašalinti) iš medžiagos vandens masė, padalyta iš medžiagos tūrio. Matavimo vienetas – kilogramas kubiniam metrui (kg/m³). atitikmenys:… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • absolute humidity — absoliučioji drėgmė statusas T sritis fizika atitikmenys: angl. absolute humidity; moisture content mass by volume vok. absolute Feuchtigkeit, f rus. абсолютная влажность, f pranc. humidité absolue, f …   Fizikos terminų žodynas

  • absolute humidity — absoliutusis drėgnis statusas T sritis chemija apibrėžtis Chemiškai nesujungto vandens masė vienetiniame medžiagos tūryje. atitikmenys: angl. absolute humidity rus. абсолютная влажность …   Chemijos terminų aiškinamasis žodynas

  • absolute humidity — the mass of water vapor present in a unit volume of moist air. Cf. dew point, mixing ratio, relative humidity, specific humidity. [1865 70] * * * …   Universalium

  • absolute humidity — noun Date: 1867 the amount of water vapor present in a unit volume of air compare relative humidity …   New Collegiate Dictionary

  • absolute humidity — /æbsəlut hjuˈmɪdəti/ (say absuhlooht hyooh miduhtee) noun → humidity (def. 2c) …  

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