基于SCS模型的资料缺乏地区小流域设计洪水计算方法研究

Study on Calculation Method of Design Flood for Small River Basin in Areas Lacking Hydrological Data based on SCS Model

文章利用ArcGIS软件,依据数字高程模型(DEM)、土地利用、土壤类型等遥感数据确定SCS模型产、汇流参数,根据设计暴雨资料对研究流域设计洪水进行模拟,并用地区综合法进行结果验证。结果表明:SCS模型计算结果可靠,对解决资料缺乏地区小流域设计洪水计算具有参考价值。

The article adopts ArcGIS software to determine the output and confluence parameters of the SCS model based on remote sensing data such as digital elevation model(DEM),land use and soil type,simulates the design flood in the study basin based on the design rainstorm data,and uses the regional comprehensive method to verify the results.The results show that the calculation results of the SCS model are reliable and are of reference value for design flood calculation of small river basin in areas with insufficient data.