Transforming Normal Height with Elevation Fitting Using Global Positioning System in Gravity Exploration

详细信息   

• 责任者：Zhang Guoli (Institute of Geology and Mineral Resources ; Tianjin 300170 ; China) ; Li Jianguo
• 刊名：Geological Survey and Research
• 出版年：2012
• 卷期：35(3)
• 关键词：全球定位系统 ; Global Positioning System ; 数字高程模型 ; digital elevation models
• 页码：p.221-223
• 图表：1 illus., 4 refs.
• 分类号：1900
• issnNo：ISSN1672-4135
• isbnNo：CN12-1353/P

摘要

The elevation of GPS measurements is the geodetic height relativing to the WGS-84 ellipsoid of the earth. Gravity exploration needs the normal height. The authors introduce the principle of using polynomial surface fitting method to fit the height anomaly. Using leveling height from level measurement assesses the precision of the fitting normal height. This paper sum the application effect of GPS fitting elevation in gravity exploration.