| Title |
Hydrodynamic Modeling of Saemangeum Reservoir and Watershed using HSPF and EFDC |
| Authors |
신유리 ( Yu Ri Shin ) ; 정지연 ( Ji Yeon Jung ) ; 최정훈 ( Jung Hoon Choi ) ; 정광욱 ( Kwang Wook Jung ) |
| Keywords |
Environmental Fluid Dynamic Code; EFDC; Hydrological Simulation Program with Fortran; HSPF; Saemangeum; Salinity; Water temperature |
| Abstract |
Saemangeum lake is an artificial lake created by reclamation works and an estuary embankment since 2006. The sea water flows into the lake by the operation of two sluice gates, and the freshwater enters into the lake by the upper streams. For the reflection of hydrology and hydrodynamics effects in Saemangeum area, a hydrodynamics model was developed by connecting Hydrological Simulation Program with Fortran (HSPF) and Environmental Fluid Dynamic Code (EFDC). The HSPF was applied to simulate the freshwater discharge from the upper steam watershed, and the EFDC was performed to compute water flow, water temperature, and salinity based on time series from 2008 to 2009. The calibration and validation are performed to analyze horizontal and vertical gradients. The horizontal trend of model simulation results is reflected in the trend of observed data tolerably. The vertical trend is conducted an analysis of seasonal comparisons because of the limitation of vertically observed data. Water temperature reflects on the seasonal changes. Salinity has an effect on the near river input spots. The impact area of salinity is depending on the sea water distribution by gate operation, mainly. |