environmental lapse rate
- (ELR)change in temperature with altitude above a particular point at a particular time. Average is 6.5蚓 per 1000m. Actual rates slower at lower altitude. In summer, rates tend to be quicker than in winter for the same place.
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environmental lapse rate — The lapse rate in the surrounding air within which a volume of air is being lifted. The average rate is 2°C/1,000 ft. This should not be confused with dry adiabatic lapse rate (DALR) and saturated adiabatic lapse rate (SALR), in which the lapse… … Aviation dictionary
Lapse rate — The lapse rate is defined as the rate of decrease with height for an atmospheric variable. The variable involved is temperature unless specified otherwise. The terminology arises from the word lapse in the sense of a decrease or decline;… … Wikipedia
lapse rate — The rate of decrease of an atmospheric variable with height. However, the term normally refers to the fall of temperature with height. The three types of lapse rates referred to in meteorology are dry adiabatic lapse rate, saturated adiabatic… … Aviation dictionary
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lapse rates — the rates at which air temperature decreases with altitude. Three types: environmental lapse rate (ELR) Dry adiabatic lapse rate (DALR) Saturated adiabatic lapse rate (SALR) … Geography glossary
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