Determination of the Free-Air Gravity anomalies over Brong-Ahafo Region of Ghana
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Date
2011-07-14
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Abstract
Free-air gravity anomalies over Brong-Ahafo Region of Ghana on a regular 2.5×2.5 arc
minute grid is determined from combined surface gravity and digital elevation model
data using Simple Bouguer anomaly procedure and Gravity Reconstruction method of
gridding. The Geodetic Reference System 1980 (GRS80) ellipsoid was used as the
reference ellipsoid for computation of the normal gravities at the grid points.
The results of this study shows that the residual free-air gravity anomalies over Brong-
Ahafo Region range from -63.07 to -3.56 mGal, with the negative values indicating
places where the normal gravity values are higher than the corresponding free-air values
and that the ellipsoid is below the geoid surface.
Description
A thesis submitted to the Department of Geomatic Engineering,
Kwame Nkrumah University of Science and Technology
in partial fulfillment of the requirements for the degree of
MASTER OF SCIENCE.