In view of the existing problem in the traditional method of the compartmentalization of urban rainwater catchments basin, by the technology of partition of drainage basin and professional GIS terrain disposal software, the paper proposes a method of auto
In view of the existing problem in the traditional method of the compartmentalization of urban rainwater catchments basin, by the technology of partition of drainage basin and professional GIS terrain disposal software, the paper proposes a method of auto
摘要针对传统汇水区划分方法中存在的问题，利用流域地形分割技术，通过专业的GIS地形处理软件，建立了城市雨水流域汇水区的自动划分方法，其划分过程主要由构建格网DEM、格网点流向定义、汇流网络提取、子汇流区域划分、子汇流区域生成城市流域汇水区和流域汇水区编码6步组成。