| Title |
A Conceptual Soil Water Model of Catchment Water Balance : Which Hydrologic Components are Needed to Calibrate the Model? |
| Keywords |
annual water balance;hydrologic component;precipitation partitioning;soil water;연 물수지;수문성분;강수분할;토양수분 |
| Abstract |
In this study a conceptual soil water model is proposed to simulate water balance at catchment scale. The model is based on the sequential separation of daily precipitation into surface runoff, wetting, vaporization, and percolation. The proposed model is calibrated by using three observation sets: empirically estimated annual vaporization, monthly wetting estimated by NRCS-CN method, and both of them. The model performance is evaluated to understand which hydrologic components for calibrating the model are needed. It is shown that both of annual vaporization and monthly wetting are indispensable hydrologic components to simulate reasonably precipitation partitioning. |