SWAT Literature Database for Peer-Reviewed Journal Articles

Title:A global sensitivity analysis tool for the parameters of multi-variable catchment models 
Authors:van Griensven, A., T. Meixner, S. Grunwald, T. Bishop, M. Di Luzio and R. Srinivasan 
Journal:Journal of Hydrology 
Volume (Issue):324(1-4) 
Article ID: 
URL (non-DOI journals): 
Broad Application Category:hydrologic and pollutant 
Primary Application Category:sensitivity analysis 
Secondary Application Category:pollutant cycling/loss and transport 
Watershed Description:3240 km^2 Sandusky River and 932 km^2 Upper North Bosque, which drain respectively portions of northern Ohio (to Lake Erie) and north central Texas, U.S. 
Calibration Summary: 
Validation Summary: 
General Comments:Different local (single parameter) and global (multiple parameter) sensitivity analysis methods are described using SWAT2003 (earlier version of SWAT2005). A combined novel latin-hypercube & one factor-at-a-time sampling (OATS) approach is described and used, that facilitates a global sensitivity analysis for a large set of parameters with just a limited set of runs. Examples of applying the approach is described using 46 input parameters for two watersheds for flow, SS, TN, TP, nitrate, & ammonia at several locations. Hydrologic parameters were dominant & the results were found to not be transferable between the two watersheds. SWAT output is reported in terms of uncertainty measures; e.g., confidence bounds for daily flows and sediment loads. 
Keywords:Model parameters; River; Sensitivity analysis; Water quality