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Titel |
SEHR-ECHO v1.0: a Spatially Explicit Hydrologic Response model for ecohydrologic applications |
VerfasserIn |
B. Schaefli, L. Nicòtina, C. Imfeld, P. Da Ronco, E. Bertuzzo, A. Rinaldo |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1991-959X
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Digitales Dokument |
URL |
Erschienen |
In: Geoscientific Model Development ; 7, no. 6 ; Nr. 7, no. 6 (2014-11-20), S.2733-2746 |
Datensatznummer |
250115782
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Publikation (Nr.) |
copernicus.org/gmd-7-2733-2014.pdf |
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Zusammenfassung |
This paper presents the Spatially Explicit Hydrologic Response (SEHR) model
developed at the Laboratory of Ecohydrology of the Ecole Polytechnique
Fédérale de Lausanne for the simulation of hydrological processes at
the catchment scale. The key concept of the model is the formulation of water
transport by geomorphologic travel time distributions through gravity-driven
transitions among geomorphic states: the mobilization of water (and possibly
dissolved solutes) is simulated at the subcatchment scale and the resulting
responses are convolved with the travel paths distribution within the river
network to obtain the hydrologic response at the catchment outlet. The model
thus breaks down the complexity of the hydrologic response into an explicit
geomorphological combination of dominant spatial patterns of precipitation
input and of hydrologic process controls. Nonstationarity and nonlinearity
effects are tackled through soil moisture dynamics in the active soil layer.
We present here the basic model set-up for precipitation–runoff simulation
and a detailed discussion of its parameter estimation and of its performance
for the Dischma River (Switzerland), a snow-dominated catchment with a small
glacier cover. |
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