Climate and the equilibrium state of land surface hydrology parameterizations |
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Authors: | Dara Entekhabi Peter S. Eagleson |
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Affiliation: | (1) Department of Civil Engineering, Massachusetts Institute of Technology, 02139 Cambridge, MA, U.S.A. |
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Abstract: | For given climatic rates of precipitation and potential evaporation, the land surface hydrology parameterizations of atmospheric general circulation models will maintain soil-water storage conditions that balance the moisture input and output. The surface relative soil saturation for such climatic conditions serves as a measure of the land surface parameterization state under a given forcing. The equilibrium value of this variable for alternate parameterizations of land surface hydrology are determined as a function of climate and the sensitivity of the surface to shifts and changes in climatic forcing are estimated. |
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