drainage divides 中文意思是什麼

drainage divides 解釋
分水嶺
  • drainage : n. 1. 排水,放水;排水法;逐漸流出。2. 下水道;排水設備,排水系統。3. 水系,排水區域,流域。4. 陰溝水,(排出的)污水。5. 【醫學】引流,導液(法)。
  1. On the basis of raster digital elevation model ( dem ) data over the laohahe river catchment in the upper and west area of the liaohe basin within inner mongolia autonomous region, the digital elevation drainage network model ( dednm ) is applied for assigning flow - vector directions over flat and depressional areas of the dem, for identifying stream network and watershed divides, and for establishing spatial topological structure of subcatchments and stream network

    基於遼河水系老哈河流域柵格數字高程模型( dem )數據,採用數字流域水系模型( dednm ) 、河流工具rivertools 、地理信息系統arcview軟體,根據地形提取水系信息,構建數字流域水系、子流域與河網的空間拓撲關系。
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