排水规划中排水分区划分技术研究

Study on the drainage zone partition in the planning for urban water discharge

利用ARC/INFO对城市流域DEM进行了分析,并通过流域特征分析提取流域汇水线,实现了排水分区自动划分。结果表明,排水分区自动划分方法不仅操作性较强,而且提高了排水区划分的效率和质量。

Urban grid DEM is constructed by ARC/INFO, and urban drainage catchments basin with sub-catchments are built automatic. The re- suits shows that the method of automatic compartmentalization of drainage zone is easily operable and highly improves the efficiency and quality of the drainage zone partition.