| Title |
Snow Melting Simulation of Gwangdong Dam Basin in the Spring Season Using Developed K-DRUM Model |
| Authors |
김현식(Kim, Hyeon Sik) ; 강신욱(Kang, Shin Uk) ; 황필선(Hwang, Phyil Sun) ; 허영택(Hur, Young Teck) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.6B.355 |
| Keywords |
광동댐;융.적설;K-DRUM 모형;신뢰성 평가 gwangdong dam;snow pack and melt;K-DRUM;reliability evaluation |
| 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. |