湖北省中小流域由实测暴雨推求设计洪水方法的探讨

Discussion on Design Flood Calculation Method of Medium and Small Watersheds in Hubei Province

根据流域产汇流参数,将历年暴雨资料转换为对应的洪水资料系列,由洪水资料系列作为样本计算统计参数。实例表明本方法计算成果与实测洪水计算相近,能较好地反映降水时空分布情况,克服了雨洪同频率的假定。

Hubei province is a humid region where,floods are caused by torrential rain,Based on the measured rainstorm data,the runoff yield and concentration parameters are analyzed,The series of torrential rain data over the years are converted into the corresponding series of flood data,The statistical parameters are calculated by using the flood data series as samples.The example shows that the result of this method is close to that of flood calculation,It can better reflect the temporal and spatial distribution of precipitation,Overcome the assumption that rain and flood are of the same frequency.