Analysis of the Runoff Characteristics at Yongdamdam Watershed Using Multi-Point Hydrological Observations and SWAT Model |
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학술지명 PAWEES 2013
저자 김성준,박민지,채효석,신형진
발표일 2013-11-11
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A distributed model can easily obtain discharge at any grids spatially distributed in a watershed. But if there are subwatersheds which have various characteristics in a watershed, it is needed to apply a model calibrated at each subwatershed to obtain reliable simulation results for each subwatershed. This study evaluated SWAT model when measured multi-point streamflow (Q) data were used to calibrate the simulated values in a 930.0 km2 watershed of South Korea. GIS data such as DEM, land cover map and soil map, and meteorological data were used as the input data of SWAT model. And the rating curve equation of Donghyang, Cheoncheon, Jucheon and Sukjung gauge station were applied as the measured values of them. As the result of Streamflow, the coefficient of determination (R2) and the Nash-Sutcliffe coefficient of efficiency (EI) of model calibration showed high as 0.92 and 0.84 at Yongdamdam gauge station. |