Pseudoadiabatic lapse rate
From Glossary of Meteorology
Revision as of 17:41, 25 April 2012 by
pseudoadiabatic lapse rate
It is given by
where Γps is the pseudoadiabatic lapse rate, g is gravitational acceleration, rv is the mixing ratio of water vapor, cpd and cpv are the specific heats at constant pressure of dry air and water vapor, Lv is the latent heat of vaporization, R is the dry air gas constant, ε ≈ 0.62 is the ratio of the gas constants of dry air and water vapor, and T is temperature. The above lapse rate is usually within 1 percent of those shown under moist-adiabatic lapse rate and reversible moist-adiabatic lapse rate.