HEC-HMS模型在新疆天山北坡地区设计洪水计算中的应用

以新疆天山北坡的白杨河、木垒河、乌鲁木齐河、大黑沟和开垦河流域为例,构建了各流域的HEC-HMS模型。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HEC-HMS模型产、汇流参数初值,根据设计暴雨资料对各流域设计洪水进行了模拟,采用白杨河、木垒河、乌鲁木齐河、大黑沟和开垦河的流量频率计算值对模型参数进行率定,并用乌鲁木齐河资料进行结果验证。结果表明:HEC-HMS模型计算结果可靠,可应用于新疆天山北坡地区设计洪水计算中。

Application of the HEC-HMS model to the design flood calculation in the northern slope of Tianshan Mountains,Xinjiang

In the paper,the Baiyang River,Mulei River,Urumqi River,Daheigou and Reclamation River basins on the northern slope of the Tianshan Mountains in Xinjiang are selected as study area and the HEC-HMS models of each basin are constructed.Using ArcGIS software,the initial values of HEC-HMS model production and confluence parameters were determined based on remote sensing data such as digital elevation model(DEM),land use,soil type,etc.The design floods in each basin were simulated based on the design storm data.The parameters of the HEC-HMS model were calibrated using the calculated flow frequency of Baiyang river,Mulei river,Daheigou and Kaiken river and the simulation accuracy of the HEC-HMS model was verified using data of Urumqi river.The results show that the calculation results of the HEC-HMS model are reliable and can be applied to the design flood calculation in the northern slope of the Tianshan Mountains in Xinjiang.