Equivalent temperature
In
adiabatic
process.
Air contains water vapor that has been evaporated into it from liquid sources (lakes, sea, etc...). The energy needed to do that has been taken from the air. Taking a volume of air at temperature T and mixing ratio of r, drying it by condensation will restore energy to the airmass. This will depend on the latent heat
release as:
where:
- : latent heat of evaporation (2400 kJ/kg at 25°C to 2600 kJ/kg at −40°C)
- : specific heatat constant pressure for air (≈ 1004 J/(kg·K))
Tables exist for exact values of the last two coefficients.
See also
- Wet-bulb temperature
- Potential temperature
- Atmospheric thermodynamics
- Equivalent potential temperature
Bibliography
- M Robitzsch, Aequivalenttemperatur und Aequivalentthemometer, Meteorologische Zeitschrift, 1928, pp. 313-315.
- M K Yau and R.R. Rogers, Short Course in Cloud Physics, Third Edition, published by Butterworth-Heinemann, January 1, 1989, 304 pages. ISBN 0-7506-3215-1
- J.V. Iribarne and W.L. Godson, Atmospheric Thermodynamics, published by D. Reidel Publishing Company, Dordrecht, Holland, 1973, 222 pages
 | This article about atmospheric science is a stub. You can help Wikipedia by expanding it. |