Exner function explained
The Exner function is an important parameter in atmospheric modeling. The Exner function can be viewed as non-dimensionalized pressure and can be defined as:
where
is a standard reference surface pressure, usually taken as 1000
hPa;
is the
gas constant for dry air;
is the heat capacity of dry air at constant pressure;
is the
absolute temperature; and
is the
potential temperature.
References
- Pielke, Roger A. Mesoscale Meteorological Modeling. Orlando: Academic Press, Inc., 1984.
- U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Weather Service. National Weather Service Handbook No. 1 - Facsimile Products. Washington, DC: Department of Commerce, 1979.
See also