Gamma—The Psychrometer Non-Constant
Open Access
- 1 October 1975
- journal article
- Published by American Meteorological Society in Journal of Applied Meteorology
- Vol. 14 (7) , 1397-1398
- https://doi.org/10.1175/1520-0450(1975)014<1397:gpnc>2.0.co;2
Abstract
Using 0.66 mb K−1 for γ, the psychrometric constant, can cause underestimates of evapotranspiration in excess of 5% at elevations above 1000 m. Graphs and equations are presented to prevent this error and to facilitate the calculation of evapotranspiration.Keywords
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