ACCURACY ANALYSES OF EIGEN-6C2 GEOPOTENTIAL
MODEL IN CHINA MAINLAND
1）Xi’an Division of Surveying and Mapping，Xi’an 710054
Abstract A rigorous formula for computing altitude anomaly with global geopotential model was proposed，and accuracy of two geopotential models，EIGEN6c2 and EGM08 were checked using GPS/leveling data in different areas.Results show that the accuracy of altitude anomaly of EIGEN6c2 model is 2~3 cm higher than that of EGM08 model，especially，it is up to 18 cm in Tibetan plateau.Morerover，the system difference between 1985 national height datum and global height datum（W0）is 26 cm determined by the formula.
Key words ：
geopotential model
GPS/leveling
EIGEN-6c2
EGM08
1985 national height datum
Received: 26 September 2013
Published: 26 September 2014
Cite this article:
Zhao Dejun,Zhang Minli,Wang Qiang et al. ACCURACY ANALYSES OF EIGEN-6C2 GEOPOTENTIAL
MODEL IN CHINA MAINLAND[J]. jgg, 2014, 34(5): 21-24.
Zhao Dejun,Zhang Minli,Wang Qiang et al. ACCURACY ANALYSES OF EIGEN-6C2 GEOPOTENTIAL
MODEL IN CHINA MAINLAND[J]. jgg, 2014, 34(5): 21-24.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2014/V34/I5/21
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