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- W2377446199 abstract "Based on geographic information system(GIS) and the surface runoff model,the algorithms and programme for extracting the channel network was introduced.The terrain characters of topography based on the DEM were analyzed in this paper.According to the characteristics of DEM data,through the procedures distinguished from billabong and filling,uplifting the flat land,determining the direction of water course and the stream accumulated matrix,the extraction of the river grid network and water system was realized and the digital vectorgraph of the watershed was obtained.The Chanba River Watershed flowing through Xi'an City was taken as a research object for channel network extraction.Using the basical land data supplied for SRTM-DEM being 90m resolving power by NASA.The channel network extration from DEM was basically consistent with the factual water system.The results showed that this method can be used in practical scientific research and hydrological analysis." @default.
- W2377446199 created "2016-06-24" @default.
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- W2377446199 date "2009-01-01" @default.
- W2377446199 modified "2023-09-27" @default.
- W2377446199 title "Research on the Algorithms of the Digital Channel Network Extraction Based on Digital Elevation Model" @default.
- W2377446199 hasPublicationYear "2009" @default.
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