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specific humidity

the ratio of the mass of water vapor in air to the total mass of the mixture of air and water vapor. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for specific humidity
  • The buoy observations of relative humidity and supporting data from the buoys were used to calculate specific humidity.
  • The moisture concentration in the air is measured as specific humidity.
British Dictionary definitions for specific humidity

specific humidity

the mass of water vapour in a sample of moist air divided by the mass of the sample
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Article for specific humidity

mass of water vapour in a unit mass of moist air, usually expressed as grams of vapour per kilogram of air, or, in air conditioning, as grains per pound. The specific humidity is an extremely useful quantity in meteorology. For example, the rate of evaporation of water from any surface is directly proportional to the specific humidity difference between the surface and the adjoining air

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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