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... > Science Keywords > EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > ATMOSPHERIC TEMPERATURE INDICES > HEAT INDEX

Preferred term

HEAT INDEX  

Definition

  • The heat index (HI) or “apparent temperature” is an approximation of how hot it “feels” for a given combination of air temperature and relative humidity (RH). Generally, higher RH values at the same temperature feel warmer or more stressful because of less evaporative cooling when people perspire. The HI is the result of extensive biometeorological studies over a period of decades by various researchers, most notably Robert G. Steadman. (en)

Broader concept

Change note

  • 2013-09-04 15:56:20.0 [epneff] Insert Concept add broader relation (HEAT INDEX [289ca013-0526-49e0-8b87-51513702e8f4,105823] - ATMOSPHERIC TEMPERATURE INDICES [25d73bcf-c8d4-4c0e-ac98-8f3e98677e73,105815]);
  • 2013-10-11 18:04:36.0 [saritz] added new definition insert Definition (id: null text: The heat index (HI) or “apparent temperature” is an approximation of how hot it “feels” for a given combination of air temperature and relative humidity (RH). Generally, higher RH values at the same temperature feel warmer or more stressful because of less evaporative cooling when people perspire. The HI is the result of extensive biometeorological studies over a period of decades by various researchers, most notably Robert G. Steadman. language code: en);

URI

https://gcmd.earthdata.nasa.gov/kms/concept/289ca013-0526-49e0-8b87-51513702e8f4

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