Rodríguez Caderot, GraciaLacy de, María ClaraGil, Antonio JoséBlázquez, B.2023-06-202023-06-202006-100039-316910.1007/s11200-006-0039-3https://hdl.handle.net/20.500.14352/50299This 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.engjournal articlehttp://www.springerlink.com/content/632vr166676t27p6/fulltext.pdfhttp://www.springerlink.comrestricted access528Global Geopotential ModelFree-air gravity anomalyANDALUSGeoid2002GPS/levelling undulationGeodesia2504 Geodesia