Dry Adiabatic Lapse Rate
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Dry Adiabatic Lapse Rate
The rate of decrease of temperature with height of a parcel of dry air lifted adiabatically through the earth's atmosphere in hydrostatic equilibrium.
This lapse rate is g/cp, where g is the acceleration of gravity and cp is the specific heat of dry air at constant pressure; numerically equal to 9.767o C per kilometer or about 5.4o F per thousand feet. Potential temperature is constant with height in an atmosphere with this lapse rate.
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
