SWAT Literature Database for Peer-Reviewed Journal Articles

Title:
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Subwatershed spatial analysis tool: discretization of a distributed hydrologic model by statistical criteria 
Authors:
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Haverkamp, S., R. Srinivasan, H.-G. Frede and C. Santhi 
Year:2002 
Journal:Journal of the American Water Resources Association 
Volume:38(6) 
Pages:1723-1733 
Article ID: 
DOI:10.1111/j.1752-1688.2002.tb04377.x 
URL (non-DOI journals): 
Model:SWAT 
Broad Application Category:hydrologic only 
Primary Application Category:HRU and/or subwatershed delineation effects 
Secondary Application Category:calibration, sensitivity, and/or uncertainty analysis 
Watershed Description:
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6.3 km^2 Weiherbach & 81.7 km^2 Dietzh√∂lze (Germany), and 4,297 km^2 Bosque (central Texas) 
Calibration Summary:
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Validation Summary:Daily? 5-year E value ranges dominant approach vs. HRU approach: Dietzh√∂lze: .64-.73 (dom.) vs. .77-.78 (HRU) Weiherbach: -4.59-.51 (dom.) vs. .22-.35 (HRU) Bosque: .04-.39 (dom.) vs. .43-.49 (HRU) 
General Comments:SUSAT was developed to determine the objective choice of watershed discretizations. SUSAT was used with SWAT to find appropriate HRU and/or subwatershed subdivisions for three watersheds. The predicted streamflows were sensitive to discretization levels, especially when dominant land use and soil types were used for each watershed. The statistical evaluations are reported for using dominant land use (dom.) with no HRUs in a subwatershed versus using HRUs (HRU). 
Language:English 
Keywords:watershed modeling; geographic information system; data preprocessing; spatial discretization; heterogeneity; entropy