The Application of ZY-3 Data to Gravity Intermediate Area Topographic Correction
详细信息
- 责任者：Sun Xiliang (Geometric College ; Shandong University of Science and Technology ; Qingdao 266590 ; China) ; Liu Zhaoqin
- 刊名：Geophysical and Geochemical Exploration
- 出版年：2013
- 卷期：37(5)
- 关键词：卫星测量 ; satellite measurements ; 地形改正 ; topographic correction ; 北京 ; Beijing
- 页码：p.822-826
- 图表：5 illus., 3 tables, 17 refs.
- 分类号：2100
- issnNo：ISSN1000-8918
- isbnNo：CN11-1906/P
摘要
This paper investigates the method of high-precision digital elevation model generation in gravity intermediate area topographic correction with ZY-3 stereo surveying satellite data.The rational function model has been refined with the GPS points and forward,nadir,backward image data.The experimental verification of topographic correction with 1 ∶ 10 000 high-precision digital elevation model data shows that the digital elevation model produced by ZY-3 stereo data can meet the precision requirement for 1 ∶ 200 000 gravity intermediate area topographic correction.The result obtained by the authors provides an effective means for gravity intermediate area topographic correction and expands the application of ZY-3 in regional gravity survey.
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