Title: Application of SWAT Model Based SUFI-2Algorithm to Runoff Simulation in Xiushui Basin
Abstract: In order to simulate monthly runoff in the upstream catchment of Gaosha hydrological station of Xiushui River Basin from 1984to 2003,a distributed hydrological model was developed with SWAT,calibrated and validated with SUFI-2algorithm.Sensitivity and uncertainty analysis were performed to improve model performance.The results show that the first to third sensitive parameters were as follows:the soil saturated hydraulic conductivity,soil evaporation compensation coefficient and flow curve number;efficiency coefficient values ENSand the correlation of determination coefficient R2 values were higher than the value of 0.90during the calibration and validation period;the monthly runoff simulation value with the actual flow process line fitting degree was good;in 95PPU confidence interval,the simulation value was close to the actual value;the uncertainty interval was smaller,and the validation period of uncertainty was less than the rate of calibration;the SWAT model based SUFI-2algorithm was suitable for monthly runoff of Xiushui River Basin in a certain degree.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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Cited By Count: 3
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