Goiás State - Brazil (MODGEO-GO)
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Authors: C.A.C.C. Júnior, et al.
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Created: 2018
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Resp: G.N. Guimarães
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Description:
The geoid model for the state of Goiás covers the longitude range of -44º to -54º and the latitude range of -12º to -20º, with a 5’ arc resolution. For this purpose, the modified Stokes integral was applied using the Fast Fourier Transform. The SAM3s_v2 digital terrain model was used. Spectral decomposition was utilized to calculate the model, with the long-wavelength component represented by the EIGEN-6C4 model, up to a degree and order 250, respectively. The models were assessed by using absolute comparisons from 140 GNSS leveling stations, showing a standard difference of approximately 10 cm.
Reference:
C.A.C.C. Júnior, G.N. Guimarães, N.C. Ferreira (2018). The Geoid Model of Goiás - MODGEO-GO. Anuário do Instituto de Geociências (UFRJ), 41, pp. 460-469 (in Portuguese). DOI: 10.11137/2018_3_460_469
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