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《Journal of Anhui Agricultural Sciences》 2009-02
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Development of DEM on 1:10000 Scale and Its Application in Geo-sciences

GAO Ying-jie et al(College of Resource and Environmental Sciences,Nanjing Agricultural University,Nanjing,Jiangsu 210095)  
It has momentous significance of investigating DEM,for which has a great value of application in the modern geographical research.With a case study of Weigang District in Nanjing City,this paper mainly introduced the techniques and process of executing the DEM rigorously according to the national precise standard of producing DEM,by digitizing contour from the basic rigorous map on the scale of 1∶10 000 based on the ARC/INFO software.And an investigation into 3D Visualization of DEM and automatical vectorization of relief map in the processing facture was carried on.At the same time,a proof-test of the precision and quality of the DEM was made detailedly and strictly,on the basis of which a series of correlative analysis were made,such as the picking-up of slope and aspect,the picking-up of chine and hollow,hydrology-analysis and so on.
【Fund】: 南京农业大学SRT项目资助
【CateGory Index】: P208
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