Um modelo gravimétrico do geóide das regiões Ibérica e Macaronésica - ICAGM07

TL;DRAbstract

The Iberia-Canary-Azores gravity and geoid model (ICAGM) is a project within the Iberian countries
\naimed at the determination of a high precision geoid model. This geoid intends to be a geographic
\nextension of EGG97 to the west limit of European plate tectonics (Azores archipelago) and to the south
\nof Canary islands. The main purpose of this geoid surface is to establish the connection between the
\nexisting vertical reference systems in lberia and Azores and Canary islands and also to be the reference
\nsurfacefor real time kinematics positioning within this geographic area. The geoid model was compared
\nwith GPS-leveling data on Iberia (Portugal and Spain). and on 7 different vertical data used on Azores,
\nMadeira and Canary archipelagos. The comparisons indicates an overall precision of 10 cmfor Portugal
\nand 12 cmfor Spain and offsets rangingfrom 100 cm in Canary to 36cm in S. Miguel island on Azores,
\nwith an offset of 16 cm between Po

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