Apparent temperature - The temperature people perceive under hot and humid conditions. (See Excessive Heat Outlook).
Apparent Temperature - The air temperature perceived by a person.
Arctic (A) Air Mass - A bitterly cold air mass that forms over the frozen Arctic Ocean.
Apparent temperatures This has been used more commonly since about 1980 to refer to what various temperature and humidity combinations feel like based on human physiology and clothing science and the need for the body to maintain a thermal ...
Apparent temperature What the air temperature "feels like" for various combinations of air temperature and relative humidity.
Arena cloud See Roll cloud.
Apparent Temperature
The apparent temperature (AT), invented in the late 1970s, was designed to measure thermal sensation in indoor conditions. It was extended in the early 1980s to include the effect of sun and wind.
Apparent Temperature: The apparent temperature is a measure of human discomfort due to combined heat and humidity. It was developed by Dr. R. G. Steadman in 1979 and is based on studies of human physiology and textile (clothing) science.
Apparent Temperature A measure of human discomfort due to combined heat and humidity. It measures the increased physiological heat stress and discomfort associated with higher than comfortable humidities.
Apparent Temperature
A measure of human discomfort due to combined heat and humidity (e.g., heat index).
APRCH ...
Apparent Temperature - See Heat Index.
Coastal Flooding - Prolonged strong onshore flow of wind and/or high astronomical tides causing a rise in sea level that floods coastal areas.
Heat Index Apparent Temperature: More commonly known as the Heat Index, the Heat Index Apparent Temperature is the accepted measure of thermal discomfort in the United States.
HEAT INDEX - Apparent temperature air feels depending on the humidity. Higher humidities make the air "feel" warmer because perspiration does not evaporate as readily to cool the skin in higher humidities.
WIND CHILL- The apparent temperature that describes the cooling effect on exposed skin by the combination of temperature and wind, expressed as a loss of body heat. An increase in wind speed or decrease in temperature will accelerate the effect.
Heat indexAn index that combines air temperature and humidity to give an apparent temperature (how hot it feels). Heat islandA dome of elevated temperatures over an urban area caused by the heat absorbed by structures and pavement.
HEAT INDEX: An index that combines air temperature and humidity to give an apparent temperature (eg. how hot it "feels"). Here is a heat index formula originally from Weatherwise magazine. It gives valid results above 70 deg. F. (-42.379+2.
Heat Index The Heat Index (HI) or the "Apparent Temperature" is an accurate measure of how hot it really feels when the Relative Humidity (RH) is added to the actual air temperature.
HEAT INDEX: Also known as the Apparent temperature, it is a non-physical value which combines the effect of the air temperature and amount of moisture in the air to illustrate how it "feels." ...
Brightness Temperature - the apparent temperature of a celestial object, based on the assumption that it radiates as a blackbody ...
An index that combines air temperature and relative humidity to determine an apparent temperature-how hot it actually feels.
Heat lightning(6)
Distant lightning that illuminates the sky but is too far away for its thunder to be heard.
Wind chill equivalent temperature: the apparent temperature felt on the exposed human body owing to the combination of temperature and wind speed.
In hot summer weather, it also increases the apparent temperature to humans (and other animals) by preventing the evaporation of perspiration from the skin. This effect is calculated in a heat index table.
This definition is not restricted to solid bodies but applies also to gases and liquids. 2. (Also known as brightness temperature.) The apparent temperature of a nonblackbody determined by measurement with a radiometer.
Apparent temperature The perceived temperature derived from either a combination of temperature and wind (wind chill) or temperature and humidity (heat index).
 See also: Air, Atmosphere, Surface, Pressure, Water
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