Preferred Label : adiabatic lapse rate;
Detailed label : adiabatic lapse rate in atmospheric chemistry;
IUPAC definition : The rate of decrease in temperature with increase in altitude of an air parcel which
is expanding slowly to a lower atmospheric pressure without exchange of heat; for
a descending parcel it is the rate of increase in temperature with decrease in altitude.
Theory predicts that for dry air it is equal to the acceleration of gravity divided
by the specific heat of dry air at constant pressure (approximately 9.8 C km-1).
The moist adiabatic lapse rate is less than the dry adiabatic lapse rate and depends
on the moisture content of the air mass.;
Origin ID : A00144;
See also
The rate of decrease in temperature with increase in altitude of an air parcel which
is expanding slowly to a lower atmospheric pressure without exchange of heat; for
a descending parcel it is the rate of increase in temperature with decrease in altitude.
Theory predicts that for dry air it is equal to the acceleration of gravity divided
by the specific heat of dry air at constant pressure (approximately 9.8 C km-1).
The moist adiabatic lapse rate is less than the dry adiabatic lapse rate and depends
on the moisture content of the air mass.
