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lapse rate
lapse raten. The rate of decrease of atmospheric temperature with increase in altitude.lapse rate n (Physical Geography) the rate of change of any meteorological factor with altitude, esp atmospheric temperature, which usually decreases at a rate of 0.6°C per 100 metres (environmental lapse rate). Unsaturated air loses about 1°C per 100 m (dry adiabatic lapse rate), whereas saturated air loses an average 0.5°C per 100 m (saturated adiabatic lapse rate) lapse′ rate`
n. the rate of decrease of atmospheric temperature with increase of elevation vertically above a given location. [1915–20] lapse rate
lapse rate[′laps ‚rāt] (meteorology) The rate of decrease of temperature in the atmosphere with height. Sometimes, the rate of change of any meteorological element with height. lapse rateThe 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 lapse rate, and environmental lapse rate. See also dry adiabatic lapse rate, saturated adiabatic lapse rate, and environmental lapse rate.AcronymsSeelow rider |