Prediction of Suspended Sediment in Imha Reservoir, Korea

This paper applies Soil and Water Assessment Tool (SWAT) which can predict the prolonged rainfall-runoff relationship and movement and process of sediments in the large, complicated watershed during a long period. Generally, the parameters of complicated models, namely SWAT, are so many and diverse that they indicate the extensive range due to the general soil characteristics. When using this model, in order to derive appropriate results of a preferred sub-basin, it is needed to correct and adjust a parameter range through the uncertainty analysis which includes a sensitivity analysis. In this paper, we are to pull out parameters that are sensitive or influential in runoff and sediments with considering the land use and soil characteristics of Imha sub-basin.