On the Concept of Equilibrium Evaporation and the Value of the Priestley-Taylor Coefficient
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Stricker, H
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Parlange, M
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Eichinger, W
(EN)
An analytical expression is derived for the Priestley-Taylor coefficient, α. This coefficient is generally interpreted as the ratio between the actual evaporation rate and the equilibrium evaporation rate. The derived expression is shown to be equal to the accepted value of 1.26 for typically observed atmospheric conditions and to be relatively insensitive to small changes in atmospheric parameters. A comparison
(EN)
