地球信息科学学报 ›› 2011, Vol. 13 ›› Issue (6): 735-741.doi: 10.3724/SP.J.1047.2011.00735

• 地质编图与GIS制图专栏 • 上一篇    下一篇

我国地质制图的SRTM DEM数据应用研究

丁伟翠1, 范本贤1, 李廷栋1, 丁孝忠1, 耿树方1, 杨强2, 王振洋1   

  1. 1. 中国地质科学院地质研究所, 北京 100037;
    2. 中国地质调查局水文地质环境地质调查中心, 保定 071051
  • 收稿日期:2011-06-30 修回日期:2011-11-30 出版日期:2011-12-25 发布日期:2011-12-25
  • 作者简介:丁伟翠(1982-),女,山东烟台人,博士,主要从事地质制图与GIS应用研究.E-mail:dingweicuigis@163.com
  • 基金资助:

    中国地质调查局项目"中国地质构造区划与区域地质调查综合集成"(1212011120115).

Research on and Application of SRTM DEM Data for Geological Mapping in China

DING Weicui1, FAN Benxian1, LI Tingdong1, DING Xiaozhong1, GENG Shufang1, YANG Qiang2, WANG Zhenyang1   

  1. 1. Institute of Geology, Chinese Academy of Geological Science, Beijing 100037, China;
    2. Center for Hydrogeology and Environmental Geology of CGS, Baoding 071051, China
  • Received:2011-06-30 Revised:2011-11-30 Online:2011-12-25 Published:2011-12-25

摘要: 为了满足目前地质图件在立体制图方面的需求,采用SRTM DEM为数据源,通过SRTM DEM地质制图应用与要素分析制图等处理,进行了等高线与坡度、坡向的快速提取,并以湖南省与安徽省的地质图为例,做了MapGIS平台下的地质图可视化分析.证明将SRTM DEM作为地质图的一个图层要素加以显示,增强图件的立体感的可行性,同时通过DEM与现有的地理数据、地质数据的相互结合分析,进一步说明使用DEM可以提高地质图件要素的精度.

关键词: SRTM DEM, 地质制图, MapGIS

Abstract: In order to meet the current needs of geological maps in three-dimensional mapping, we chose SRTM DEM as the three-dimensional data source. Through the process of geological mapping application analysis and factor analysis, we conducted the operation of the data accuracy analysis, the rapid extraction of contour, slope and aspect, to improve the water system accuracy combined with the DEM and so on. Then we made the geological map visual analysis with the geological map of Hunan and Anhui provinces as the example on the MapGIS platform. It proved that DEM can display the geological map as a map layer and enhance the map stereo performance. Meantime, combined the DEM with existing geographical data and geological data, through the comparative analysis, it proved that DEM can improve the precision of geological elements expression.

Key words: SRTM DEM, geological mapping, MapGIS