High Accuracy Algorithm of Calculating Far Zone Ⅱ’s Terrain Correction
Based on Global DEM Data in Spherical Coordinate System
1 Chengdu Center of China Geological Survey, 2 North-3 Section, Yihuan Road,Chengdu 610082, China
2 College of Geophysics,Chengdu University of Technology, 1 Erxianqiao-dongsan, Chengdu 610059, China
Abstract：In order to further improve the calculation precision of gravity measurement in far zone terrain correction, this paper puts forward a calculation method that uses open global high resolution DEM data to calculate gravity terrain correction. This paper introduces the theoretical principle and implementation process of this method in detail, and through the comparative analysis of different examples, proves the feasibility and effectiveness of this calculation method.
ZHANG Wei,LIAO Guozhong,ZHANG Qiudong et al. High Accuracy Algorithm of Calculating Far Zone Ⅱ’s Terrain Correction
Based on Global DEM Data in Spherical Coordinate System[J]. jgg, 2015, 35(4): 632-635.
