Comparing recent geopotential models in Andalusia (Southern Spain)

• DOI: 10.1007/s11200-006-0039-3
• Publication Date: 2006-11-07T11:17:10Z
• Authors: G. Rodríguez-Caderot; M. C. Lacy; A. J. Gil; B. Blázquez
• Keywords: 01 natural sciences; 0105 earth and related environmental sciences

This work focuses on the comparison between satellite-only and combined Global Geopotential Models (GGMs) derived from the CHAMP and GRACE satellite missions with land gravity anomalies, geoid undulations provided by the gravimetric geoid ANDALUSGeoid2002 and GPS/levelling geoid undulations in Andalusia in order to find the GGM that best fits this area in order to be used in a further geoid computation. The results show that the EIGEN-CG01C model or the combined models GGM02C/EIGEN-CG01C and ITG-CHAMP01E/EIGEN-CG01C should be used.