The Analysis of Flood Forecast Operation Scheme for Yingnahe Reservoir

Yingnahe reservoir is responsible for flood control in the basin, and it is an important water source of Dalian city. Its water resources utilization efficiency is very important to the social and economic development of Dalian city. As Yingnahe reservoir does not have a flood control operation scheme yet for the flood season after its reconstruction, we formulated a flood control operation scheme based on forecasting information after we analyzed the availability of runoff production forecast and water draining forecast of the reservoir, with the accumulated net rainfall, reservoir inflow and water level as judging indexes for changing the reservoir outflow. The results showed that the flood forecasting operation scheme can basically realize reservoir regulation, and is reasonable, feasible, and easy to operate. By using the water draining margin as the water storage capacity after pre-discharge of the reservoir, the operation scheme not only ensures economical benefits, but also improves the flood resource utilization efficiency and flood control ability of the reservoir.

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