SWAT Literature Database for Peer-Reviewed Journal Articles

Title:
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Development and application of a physically based landscape water balance in the SWAT model 
Authors:
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White, E.D., Z.M. Easton, D.R. Fuka, A.S. Collick, E. Adgo, M. McCartney, S.B. Awulachew, Y.G. Selassie and T.S. Steenhuis 
Year:2010 
Journal:Hydrological Processes 
Volume:25(6) 
Pages:915-925 
Article ID: 
DOI:10.1002/hyp.7876 
URL (non-DOI journals): 
Model:SWAT-WB & SWAT 
Broad Application Category:hydrologic only 
Primary Application Category:modified runoff curve number approach 
Secondary Application Category:hydrologic assessment 
Watershed Description:
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1270 km^2 Gumera located in the headwaters of the Blue Nile in Ethiopia and 37 km^2 Town Brook in the Catskill Mountains of New York. Runoff in both watersheds is primarily generated via saturation-excess processes (i.e.; variable source areas - VSA hydrology). 
Calibration Summary:
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Validation Summary: 
General Comments:This paper presents a simple way to use SWAT's existing soil-water calculations in order to model saturation-excess runoff with out relying upon the Curve Number methodology. Implementing this water balance method for calculating surface runoff returned more accurate results for a data-scarce watershed in Ethiopia than the Curve Number based SWAT. In the Catskills, the water balance returned results equal to the Curve Number, but with a physically based approach. This resulted in more accurate spatial distribution of runoff generating areas throughout the watershed. 
Language:English 
Keywords:SWAT model; water balance; Ethiopia; monsoonal climate; New York; runoff; variable source area; curve number