Dry adiabat

From Glossary of Meteorology
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dry adiabat

In terms of pressure p, and specific volume α, the equation for a dry adiabat may be written
where cp and cv are the specific heats of dry air at constant pressure and volume, respectively. Meteorologically, the dry adiabat is intended to represent the lifting of dry air in a dry-adiabatic process. Since this is also an isentropic process, a dry adiabat is an isentrope.
Compare saturation adiabat;
see Poisson equation.