Wet-bulb Temperature

  • The lowest temperature to which air can be cooled by evaporating water into it at a constant pressure when the heat required for evaporation is supplied by the cooling of the air. It is measured by the wet bulb thermometer, which usually employs wetted wicking on the bulb as a cooling (through evaporation) device.  Source:  http://glossary.ametsoc.org/wiki/Wet-bulb_temperature
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