1:10000大比例尺DEM的制作及其地学应用研究  

Development of DEM on 1:10000 Scale and Its Application in Geo-sciences

作　　者：高英杰[1] 潘剑君[1] 刘世峰[1] 

机构地区：[1]南京农业大学资源与环境科学学院,江苏南京210095

出　　处：《安徽农业科学》2009年第2期894-898,共5页Journal of Anhui Agricultural Sciences

基　　金：南京农业大学SRT项目资助

摘　　要：介绍了建立在ARC/INFO软件的基础上,以南京卫岗地区为例,利用11∶0 000的国家基本地形图作为基础底图资料,严格按照国家DEM的制作精度要求,制作1∶10 000的数字高程模型(DEM)的方法及过程,并相应做了三维可视化方面的研究。而且对制作过程中的地形图自动矢量化作了进一步探索。同时详细、严格地对生成的DEM做了精度和质量上的检验。在此基础上做了坡度和坡向提取、山脊线和山谷线提取、水文分析等一系列地学应用研究。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 faeture 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.

关 键 词：11∶0000DEM 三维可视化 自动矢量化 精度和质量检验 DEM应用 

分 类 号：S127[农业科学—农业基础科学]