Guo Hao1，Ye Jiandong2，Ma Weifang3，Han Dongmei2
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Abstract:
Huaisha River is one of the input rivers to the Beitaishang Reservior. As an emergency water source in Beijing, the hydrological regime in this river watershed plays an important role in the safeguard of water supply. In this paper, NAM hydrological model was used to simulate the rainfall-runoff process in the Huaisha River Watershed with a set of calibrated parameters. The research results indicated that the simulated and observed flow process curves match very well, and the simulation precision NSE (Nash- Sutcliffe coefficient of efficiency) is 0.642. This model was used to analyze the local rainstorm-flood process and flood distribution in the Huaisha River Watershed, which indicated that the maximum discharge at the outlet of the watershed is 30.8 m3/s, similar to the observed maximum discharge of 31.0 m3/s at the Xigou hydrological station.
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