2026-05-26T10:47:16Zhttp://doidb.wdc-terra.org/oaip/oai

oai:doidb.wdc-terra.org:70062021-04-21T10:56:26ZDOIDBDOIDB.ISG

false4DOIDB.ISG 10.5880/isg.2010.002 de Matos, Ana Cristina Oliveira Cancoro Ana Cristina Oliveira Cancoro de Matos 0000-0002-0040-588X Centro de Estudos de Geodesia (CENEGEO), São Paulo, Brazil Blitzkow, Denizar Denizar Blitzkow 0000-0003-1412-3063 Escola Politécnica da Universidade de São Paulo (EPUSP) and Centro de Estudos de Geodesia (CENEGEO), São Paulo, Brazil Guimarães, Gabriel do Nascimento Gabriel do Nascimento Guimarães 0000-0003-4380-4650 Instituto de Geografia, Universidade Federal de Uberlândia (UFU), Monte Carmelo, Brazil Lobianco, Maria Cristina Barbosa Maria Cristina Barbosa Lobianco Instituto Brasileiro de Geografia e Estatística (IBGE), Rio de Janeiro, Brazil Costa, Sonia Maria Alves Sonia Maria Alves Costa 0000-0001-7832-3692 Instituto Brasileiro de Geografia e Estatística (IBGE), Rio de Janeiro, Brazil GFZ Data Services 2010 Geodesy Geoid model ISG Fast Fourier Transform Brazil EARTH SCIENCE > SOLID EARTH > GEODETICS > GEOID CHARACTERISTICS EARTH SCIENCE > SOLID EARTH > GRAVITY/GRAVITATIONAL FIELD > GRAVITY Reguzzoni, Mirko Mirko Reguzzoni 0000-0002-4027-9347 International Service for the Geoid (ISG), Politecnico di Milano, Italy Carrion, Daniela Daniela Carrion 0000-0003-1262-9394 International Service for the Geoid (ISG), Politecnico di Milano, Italy Rossi, Lorenzo Lorenzo Rossi 0000-0001-6050-1972 International Service for the Geoid (ISG), Politecnico di Milano, Italy Blitzkow, Denizar Escola Politécnica da Universidade de São Paulo (EPUSP) and Centro de Estudos de Geodesia (CENEGEO), São Paulo, Brazil de Matos, Ana Cristina Oliveira Cancoro Centro de Estudos de Geodesia (CENEGEO), São Paulo, Brazil ISG Staff International Service for the Geoid (ISG) 2010 Dataset 10.1590/S1982-21702012000100006 http://www.isgeoid.polimi.it/Geoid/format_specs.html 10.1007/s00190-020-01434-z http://www.isgeoid.polimi.it/ 10.5880/isg.2015.001 10.5880/isg.2004.002 1.0 CC BY 4.0 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. The RMS difference associated with the MAPGEO2010 model was ±0.28 meter, determined from the comparison of IBGE GPS/levelling points.

The geoid model is provided in ISG format 2.0 (ISG Format Specifications), while the file in its original data format is available at the model ISG webpage.
The International Service for the Geoid (ISG) was founded in 1992 (as International Geoid Service - IGeS) and it is now an official service of the International Association of Geodesy (IAG), under the umbrella of the International Gravity Field Service (IGFS). The main activities of ISG consist in collecting, analysing and redistributing local and regional geoid models, as well as organizing international schools on the geoid determination.
Gravimetric geoid model MAPGEO2010 -74.9583 -30.0417 -34.9583 5.95833