Estimation of sediment yield using SWAT model for Upper Tapi basin
2014
Chandra, Prabhat | Patel, P.L. | Porey, P.D. | Gupta, I.D.
Estimates of sediment yield are needed for studies of reservoir sedimentation, river morphology and planning of soil and water conservation measures. The Soil and Water Assessment Tool model, a physically based distributed hydrological model, is utilized for sediment yield estimation in the Burhanpur subbasin measuring an area of 8487 km ² in Upper Tapi catchment. The basin shows large heterogeneity in terms of hydrological parameters, land use – land cover and soil features. The model has been calibrated and validated using observed run-off and sediment yield data of 12 years at the basin outlet. The average values for Nash-Sutcliffe efficiency (NSE) and RSR for sediment yield are found to be 0.85 and 0.36, respectively, which are within satisfactory limits.
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