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http://dx.doi.org/10.12652/Ksce.2012.32.6B.355

Snow Melting Simulation of Gwangdong Dam Basin in the Spring Season Using Developed K-DRUM Model  

Kim, Hyeon Sik (K-water 물관리센터 물관리기획팀)
Kang, Shin Uk (K-water 물관리센터)
Hwang, Phyil Sun (K-water 물관리센터)
Hur, Young Teck (K-water 물관리센터)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.32, no.6B, 2012 , pp. 355-361 More about this Journal
Abstract
Gwangdong Dam Watershed is affected by the increased discharge caused by the melting snow in the spring season. Therefore, simulation results obtained using hydrologic models have generally been inaccurate in relation to discharge without snow pack and melt modules. In this research, a grid based distributed rainfall runoff model (K-DRUM) was developed using a snow pack and melt module, and has been applied in the Gwangdong Dam Watershed to simulate the discharge for a four year period. A previous version of K-DRUM, which does not include a snow pack or melt module, was used to calculate the discharge in order to compare the snow melt effect. The simulation period lasted about 7 months from October of the previous year to April of this year using hourly precipitation and weather observed data. To evaluate the model performance, NSE, PBIAS and RSR statistics techniques were applied using the simulation results of the discharge. From the results of reliability evaluation, the K-DRUM model, which uses a snow pack and melt module, had a good applicability for the runoff simulation considering the snow melt effect in the spring.
Keywords
gwangdong dam; snow pack and melt; K-DRUM; reliability evaluation;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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