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Titel |
The accuracy of simple soil water models in climate forecasting |
VerfasserIn |
E. M. Blyth, C. C. Daamen |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1027-5606
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Digitales Dokument |
URL |
Erschienen |
In: Hydrology and Earth System Sciences ; 1, no. 2 ; Nr. 1, no. 2, S.241-248 |
Datensatznummer |
250000143
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Publikation (Nr.) |
copernicus.org/hess-1-241-1997.pdf |
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Zusammenfassung |
Several simple soil water models with four layers or
less, typical of those used in GCMS, are compared to a complex multilayered
model. They are tested by applying a repeating wetting/drying cycle at
different frequencies, and run to equilibrium. The ability of the simple
soil models to reproduce the results of the multilayer model vary according
to the frequency of the forcing cycle, the soil type, the number of layers
and the depth of the top layer of the model. The best overall performance
was from the four layer model. The two layer model with a thin top layer
(0.1 m) modelled sandy soils well while the two layer model with a thick
top layer (0.5 m) modelled clay soils well. The model with just one layer
overestimated evaporation during long drying periods for all soil types. |
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