process lapse rate

process lapse rate

[′prä‚səs ′laps ‚rāt]
(meteorology)
The rate of decrease of the temperature of an air parcel as it is lifted, expressed as -dT/dz, where z is the altitude, or occasionally dT/dp, where p is pressure; the concept may be applied to other atmospheric variables, such as the process lapse rate of density.
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