首页> 外文会议>Congress of the International Association for Hydraulics Research;Biennial congress of the International Association for Hydraulics Research >A COMPLEMENTARY STREAM-NETWORK AND WATERSHED MODEL FOR RIVER BASINS IN PLAIN AND URBAN AREAS (CSWM)
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A COMPLEMENTARY STREAM-NETWORK AND WATERSHED MODEL FOR RIVER BASINS IN PLAIN AND URBAN AREAS (CSWM)

机译:平原和城市地区河流流域的补充流网络和流水模型(CSWM)

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For river basins in plain and urban areas, the GIS generated stream networks andwatersheds are insufficient and partly incorrect. Rectification and correction in theseareas are necessary by the aids of introduction of data other than DEM data andother software in addition to GIS. CSWM makes use of topographic maps and asketch map of watersheds as other kind of data source, and PhotoShop as anothersoftware tool. The model has two parts. In the first part, CSWM generates streamnetworks by GIS with DEM data, then extracts stream networks from the image oftopographic maps. After that, the two networks are matched with each other andrectified with each other. Finally, an image of stream networks is generated and adigital file is output. In the second part, CSWM scans a sketch map of watershedboundaries, overlays the stream networks to them, revises the sketch watersheds.Then, CSWM generates watersheds by GIS, overlays it and the stream networks tothe revised sketch watersheds, and modifies the watersheds to produce the finalwatershed image. Finally, outputs a digital data files of watersheds. The model isvalidated by applying to Kanto region of Japan. CSWM provides an effective supportsystem for runoff analysis on water balance analysis in large areas.
机译:对于平原和城市地区的流域,GIS生成的河流网络和流域不足,部分不正确。通过引入除DEM数据以外的数据和GIS之外的其他软件,在这些区域中进行校正和校正是必要的。 CSWM利用流域的地形图和Asketch地图作为其他类型的数据源,而使用PhotoShop作为另一种软件工具。该模型分为两个部分。在第一部分中,CSWM通过GIS使用DEM数据生成河流网络,然后从地形图图像中提取河流网络。之后,两个网络相互匹配并相互整流。最后,生成流网络的图像并输出数字文件。在第二部分中,CSWM扫描分水岭的示意图,将河流网络覆盖到其上,修改草图分水岭,然后CSWM通过GIS生成分水岭,将其和河流网络覆盖到修订后的草图分水岭上,并修改分水岭以产生最后的分水岭图像。最后,输出流域的数字数据文件。该模型通过应用于日本关东地区进行验证。 CSWM为大面积水平衡分析的径流分析提供了有效的支持系统。

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