基于DEM的分布式水文模拟模型及应用

选择太湖流域西苕溪水系为研究对象,以数字高程模型为基础,利用地理信息系统软件从DEM数据中提取研究区域的河网信息,将自动划分的子流域作为水文模型的最小计算单元,结合三水源新安江模型理论建立了基于DEM的分布式水文模拟模型并进行了应用.结果表明,所建模型适用于模拟湿润山区的降雨径流过程.

Distributed Hydrologic Simulation Model Based on DEM and Its Application

Xitiaoxi river in Taihu basin is this paper's research object.Based on digital elevation model theory,river system information is extracted by GIS software from DEM.The automatically partitioned sub-basin is the smallest computing element for hydrologic model.Combined with Xin'anjiang model theory,the distributed hydrologic simulation model based on DEM is established and applied.The application result shows that the model is applicable for simulation of rain and flow in wet area.It also offers basis to ana...