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Titel |
Impacts of grid resolution on surface energy fluxes simulated with an integrated surface-groundwater flow model |
VerfasserIn |
P. Shrestha, M. Sulis, C. Simmer, S. Kollet |
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 ; 19, no. 10 ; Nr. 19, no. 10 (2015-10-23), S.4317-4326 |
Datensatznummer |
250120835
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Publikation (Nr.) |
copernicus.org/hess-19-4317-2015.pdf |
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Zusammenfassung |
The hydrological component of the Terrestrial Systems Modeling Platform
(TerrSysMP), which includes integrated surface-groundwater flow, was used to
investigate the grid resolution dependence of simulated soil moisture, soil
temperature, and surface energy fluxes over a sub-catchment of the Rur,
Germany. The investigation was motivated by the recent developments of new
earth system models, which include 3-D physically based groundwater models
for the coupling of land–atmosphere interaction and subsurface
hydrodynamics. Our findings suggest that for grid resolutions between 100 and
1000 m, the non-local controls of soil moisture are highly grid
resolution dependent. Local vegetation, however, strongly modulates the
scaling behavior, especially for surface fluxes and soil temperature, which
depends on the radiative transfer property of the canopy. This study also
shows that for grid resolutions above a few 100 m, the variation of
spatial and temporal patterns of sensible and latent heat fluxes may
significantly affect the resulting atmospheric mesoscale circulation and
boundary layer evolution in coupled runs. |
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