滁河中下游暴雨与长江潮位频率组合分析

针对滁河中下游暴雨与长江潮位频率组合问题,从滁河中下游暴雨与滁河河口长江潮位相关性着手,对不同重现期下滁河流域设计暴雨与长江潮位组合以及长江高潮位与滁河流域暴雨组合两种情况进行了分析。结果表明:不同重现期下滁河中下游暴雨与长江潮位遭遇的概率较小。在此基础上,给出了具体的频率组合方案。可为滁河中下游城市防洪、水文计算及设计洪水计算提供理论参考。

Analysis on frequency composition of rainstorm in mid-lower reach of Chuhe River and tide level of Yangtze River

Aiming at the frequency composition of rainstorm in mid -lower reach of Chuhe River and tide level of Yangtze Riv-er, starting from the correlation of the storm in mid -lower reach of Chuhe River and Yangtze River tidal level at outlet of Chuhe River, the following two conditions under different return periods are considered:i.e, the composition of the design rainstorm in Chuhe River and tidal level of the Yangtze River , the composition of high tide level of Yangtze River and corresponding rainstorm in Chuhe River Basin .It is concluded that the encountering probability of the rainstorm in mid -lower reach of Chuhe River and Yangtze River tide under different return periods is low , and the specific frequency compositions are given , which can provide a theoretical reference for hydrologic calculation of Chuhe River .