用设计暴雨进行设计洪水的计算是我省设计洪水计算的重要途径,对于广大中小流域,因其流域面积较小,流域汇流历时较短,因而往往需要利用短历时设计暴雨进行中小流域的设计洪水计算。以往,我省自记雨量站点较少,资料系列较短,尚不具备编制1、6小时暴雨等值线图的条件。因此,在进行短历时设计暴雨计算时,一般仅根据已颁发之年最大24小时暴雨等值线图,利用H_(241)反推1小时雨力S_P值,并按暴雨公式间接计算短历时设计暴雨。由于我省以往从未进行过短历时1、6小时暴雨参数分析工作,这就使简接推求设计暴雨时,暴 Design floods with design torrential rains are an important way to calculate flood in our province. For small and medium-sized watersheds, because of their smaller catchment area and shorter catchment period, it is often necessary to design rainstorms for short and long-term design floods in medium and small watersheds Calculate. In the past, the province recorded a small amount of rain stations, the data series were short and did not yet have the preparation of conditions for a 1,6-hour rainstorm contour map. Therefore, during the design of rainstorm with short-duration design, it is generally based on the maximum 24-hour rainstorm contour map of the year that has been issued and the H_ (241) backscatter 1 hour rain force S_P value is used and the short duration design is indirectly calculated according to the rainstorm formula rainstorm. As the province has never been conducted in the past 1,6 hours of short-term heavy rainfall parameter analysis, which makes the design of heavy rain, storm design violence