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Regional Models

Ghana (GGG2017)


  Authors: C.I. Yakubu, V.G. Ferreira, S. Asante     Created: 2017    Resp: C.I. Yakubu 
      Status: PUBLIC   
Description:
The Ghanaian Gravimetric Geoid 2017 (GGG2017) covers the area from 4°N to 12°N in latitude and from 4°W to 2°E in longitude. It is referred to the WGS84 reference ellipsoid and it is comnputed from EGM2008 up to degree and order 222. This selection is performed by comparing 11 GPS/levelling observations with the geoid heights from different global gravity models. The resulting error standard deviation is equal to 45.7 cm.

References:
C.I. Yakubu, V.G. Ferreira, S. Asante (2017). Towards the Selection of an Optimal Global Geopotential Model for the Computation of the Long-Wavelength Contribution: A Case Study of Ghana. Geosciences, 7(4), 113.

Web of Science ID:
DRCI:DATA2018076013172052

Ghana