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《Journal of Geodesy and Geodynamics》 2012-05
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DETERMINATION OF MEAN SEA LEVEL GEOTENTIAL FROM GLOBAL GRAVITY FIELD MODEL AND GLOBAL SEA SURFACE HEIGHT MODEL

Chu Yonghai1,2) and Li Jiancheng1,2) 1)School of Geodesy and Geomatics,Wuhan University,Wuhan 4300792)Key Laboratory of Geospace Environment and Geodesy,Ministry of Education,Wuhan 430079  
The geoidal geopotential W0 was determined on the basis of global gravity model(EGM2008 and EGM96) and global mean sea surface height model(CLS01,DNSC08,WHU2009 and CNES_CLS10).If the sea surface topography correction was applied to the surface height,the geoidal geopotential values 62 636 858.333 3 m2s-2 and 62 636 858.260 6 m2s-2 were derived with a difference less than 1.40 m2s-2 compared to the normal level ellipsoid geopotential within free tide and mean tide system respectively.The mean sea surface topography computed based on this W0 shows that the results are reliable.
【Fund】: 国家863计划项目(2009AA121402);; 国家自然科学基金(40804003 40974017);; 地球空间环境与大地测量教育部重点实验室开放基金(10-02-05)
【CateGory Index】: P312
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