漳泽水库汛期分期研究

Study on phase-division of flood season for Zhangze Reservoir

对漳泽水库控制流域的水文气象特征进行了分析,利用统计学方法分析了漳泽水库汛期各旬平均降雨量变化、暴雨发生时间分布、洪水发生时间分布。研究表明漳泽水库入库洪水呈现出较为明显的分期特征,将漳泽水库的汛期分为三期。该分期方案与降雨天气系统的季节性变化规律一致,可为漳泽水库汛限水位动态控制提供参考。

The hydrological and meteorological features of the controlled basin of Zhangze Reservoir is analyzed herein; in which the mean precipitation change,the temporal distribution of rainstorm and the temporal distribution of flood of every ten-days during the flood season are statistically analyzed for the reservoir.The study shows that the inflow-flood into Zhangze Reservoir has an obvious feature of phase-division,and then the flood season of the reservoir is divided into three phases.This phase-division scheme generally coincides with the law of the seasonal change of the precipitation weather system therein,thus can provide references for the dynamic control of the flood control level of the reservoir.