Difference between revisions of "Process Lapse Rate"
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Process Lapse Rate
</dt>
The rate of decrease of the temperature
T of an air parcel as it is
lifted, -dT/dz , when z is altitude, or, occasionally, dT/dp
, where p is pressure.
</dd>
The concept may be applied to other atmospheric variables, e.g., the
process lapse rate of density. The process lapse rate is determined by the
character of the fluid processes and should be carefully distinguished from
the environmental lapse rate, which is determined by the distribution of
temperature in space. In the atmosphere the process lapse rate is usually
assumed to be either the dry-adiabatic lapse rate or the saturation-adiabatic
lapse rate.
</dd>
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
