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Regional Models

Brazil (MAPGEO2010)


  Authors: A.C.O.C. de Matos, et al.     Created: 2010    Resp: D. Blitzkow
      Status: PUBLIC    
Description:
The Brazilian geoid model MAPGEO2010 is limited by 6°N and 35°S in latitude and 30°W and 75°W in longitude with a 5' resolution. The terrestrial gravity data for the continent have been updated by surveys in Brazil and in the neighbour countries until 2010. The complete Bouguer and Helmert gravity anomalies have been derived through the Canadian package SHGEO. The short wavelength component was estimated via FFT. The geopotential model EGM2008 was used as a reference field restricted to degree and order 150. The geoid height was corrected from the zero-order term, -0.41 meter, for compatibility with the GRS80 ellipsoid, used by SIRGAS2000.

References:
A.C.O.C. de Matos, D. Blitzkow, G.N. Guimaraes, M.C.B. Lobianco, S.M.A. Costa (2012). Validação do MAPGEO2010 e comparação com modelos do geopotencial recentes. Boletim de Ciencias Geodesicas, 18(1), pp. 101-122.

Brazil