地理科学 ›› 2004, Vol. 24 ›› Issue (2): 188-192.doi: 10.13249/j.cnki.sgs.2004.02.188

• 论文 • 上一篇    下一篇

建立省级数字高程模型(DEM)的关键技术——以江苏省为例

王库, 于东升, 史学正   

  1. 中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室, 江苏 南京 210008
  • 收稿日期:2003-04-08 修回日期:2003-06-10 出版日期:2004-03-20 发布日期:2004-03-20
  • 基金资助:
    国家重点基础研究规划项目(G1999011810)、中国科学院知识创新工程领域前沿项目(ISSASIP0201);中国科学院南京土壤研究所所长基金(005102)。

Key Technique for Establishing Digital Elevation Model (DEM) at Provincial Scale—Case Study of Jiangsu Province

WANG Ku, YU Dong-Sheng, SHI Xue-Zheng   

  1. Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu 210008
  • Received:2003-04-08 Revised:2003-06-10 Online:2004-03-20 Published:2004-03-20

摘要: 文章以江苏省的DEM制作为例,介绍利用ARCINFO、ARCVIEW软件生成DEM的全过程中的关键技术。应用结果表明,可以快速查找出采编地形图信息过程中的错误,建立的DEM精度较高,更适合于水土流失的定量监测,显示了该技术方法的可行性。

Abstract: The map for producing DEM at provincial scale include mountains, plains, hills and crossing different projection zones, the data are very large, so careful preparation of data are needed to produce eligible DEM. Approaches of error control and some detailed methods are summarized in the paper. Key technique of finding errors and methods of establishing DEM of Jiangsu Province are introduced by using ARCINFO and ARCVIEW software. Results show that using the technique can quickly find errors in vector data. High precise DEM can be achieved by this method. The technique and method are feasible to establish eligible DEM for large areas at provincial scale. And the DEM established by this method is more suitable to apply in monitoring soil and water losses than other methods.

中图分类号: 

  • S159