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《Science of Surveying and Mapping》 2003-02
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Study of the multi-scale display of river based on DEM

SHEN Tao, SU Shan wu (Chinese Academy of Surveying and Mapping, Beijing 100039, China)  
The paper discusses the research of the multi scale display of the river. It uses the Strahler algorithm to classify the arc of river firstly, and then extracts the attribute information of elevation difference and watershed area from DEM, on the base of which it also introduces a method which auto distinguish the mainstream and ramification of the river, at last the author implemented the multi scale display to the river in the 1∶25,0000 database of the NFGIS in experimental region.
【CateGory Index】: P208
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