]> SWEET Ontology A process lapse rate of temperature, the rate of decrease of temperature with height of a parcel of dry air lifted by a reversible adiabatic process through an atmosphere in hydrostatic equilibrium. The rate of decrease of temperature with elevation The derivative of temperature. The derivative of temperature with respect to height. The derivative of temperature with respect to depth. The environmental lapse rate of temperature in an atmosphere in which the density is constant with height (homogeneous atmosphere), equal to g/R, where g is the acceleration of gravity and R the gas constant. 0 0