铁岭市南城子水库汛期分期抬高汛限水位时间的确定

Determination of time to increase flood limit water level in stages during flood period of Tieling Nanchengzi Reservoir

水库实际运用中,通过对水文资料进行系统整理、分析,可找出其中的规律,采取分期抬高汛限水位等措施,实现库容重叠使用,实现发挥水库综合效益的目的。本文根据1964—2004年的雨量及洪水资料分析成果,确定8月1日与20日,是划定南城子水库汛期分级抬高汛限水位的最佳合理分界时间,对水库科学调度运用具有重要作用。

Hydrological data are sorted and analyzed systematically in actual operation of reservoirs. The laws thereof can be discovered. Measures of increasing flood limit water level, etc. are adopted to realize overlapped application of reservoir capacity and realize the purpose of exerting comprehensive benefits of reservoirs. In the paper, the rainfall and flood data in 1964-2004 are analyzed. It is determined that August I and August 20 are determined as the optimal rational boundary times for determining to increase the flood limit water level in stages during flood period of Nanchengzi Reservoir according to the analysis results. It has important function to scientific scheduling and application of the reservoir.