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Accuracy Analysis of New Geopotential Model using GPS/Levelling Data  

Yun Hong-Sic (성균관대학교 토목환경공학과)
Cho Jae-Myoung (성균관대학교 토목환경공학과)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.23, no.4, 2005 , pp. 353-358 More about this Journal
Abstract
The purpose of this paper is to evaluate a new geopotential model, EIGEN-CG01C which had been developed from CHAMP and GRACE mission observations and surface gravity data. The accuracy analysis was conducted by comparing the geoidal heights computed from two types of geopotential models (i.e., EIGEN-CG01C and EGM96) with spirit leveled GPS bench mark. To this end, three hundred twenty GPS leveled bench marks are used as bases for the numerical investigation. From the analysis, it was possible to conclude that EIGEN-CG01C was more suitable to upgrade the KGEOID 98 since the results that the EGM96 was slightly biased.
Keywords
Geopotential Model; EGM96; EIGEN-CG01C; GPS/Levelling;
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