Comparison of two Calibration-uncertainty Methods for Soil and Water Assessment Tool in Stream Flow Modeling

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dc.contributor.author Nkonge, Lorraine K.
dc.contributor.author Sang, Joseph K.
dc.contributor.author Gathenya, John M.
dc.contributor.author Home, Patrick G.
dc.date.accessioned 2016-09-21T09:23:18Z
dc.date.available 2016-09-21T09:23:18Z
dc.date.issued 2016-09-21
dc.identifier.uri www.jkuat-sri.com/ojs/index.php/sri/index
dc.identifier.uri http://hdl.handle.net/123456789/2253
dc.description.abstract Hydrological models are increasingly being used as decision support tools in water resource management. It is therefore important that these models undergo calibration and uncertainty analysis before their application. This study addresses the application and comparison of two calibration-uncertainty methods for a distributed model in the Upper Tana Basin. The Generalized Likelihood Uncertainty Equation (GLUE) and Sequential Uncertainty Fitting Ver. 2 (SUFI-2) were used in this study to calibrate the Soil and Water Assessment Tool (SWAT). The performance of the GLUE and SUFI-2 was evaluated using three objective functions namely: coefficient of determination (R2), Nash–Sutcliffe Efficiency (NSE) and coefficient of determination divided by coefficient of regression (bR2). Uncertainty statistics used were the P-factor and R-factor. The study established the best method for calibration and uncertainty analysis is SUFI-2. en_US
dc.language.iso en en_US
dc.publisher JKUAT en_US
dc.relation.ispartofseries Journal of Sustainable Research in Engineering;Vol. 1 (2) 2014
dc.subject Calibration en_US
dc.subject Generalized Likelihood Uncertainty Equation en_US
dc.subject Sequential Uncertainty Fitting version 2 en_US
dc.subject Soil and Water Assessment Tool en_US
dc.subject Uncertainty analysis en_US
dc.title Comparison of two Calibration-uncertainty Methods for Soil and Water Assessment Tool in Stream Flow Modeling en_US
dc.type Article en_US


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