Forward gravity field modelling requires high accurate determination of the topographic
potential on the surface of the Earth's ellipsoid. Since the topography is recently known with …

In the framework of the IAG African Geoid Project, an attempt towards a precise geoid model
for Africa is presented in this investigation. The available gravity data set suffers from …

This study aims to estimate the effect of the resolution of the available Digital Height Models
(DHMs) on the reduced gravity anomalies and the final computed gravimetric geoid. The …

The available gravity data set for Africa consists of land point gravity data as well as
shipborne and altimetry derived gravity anomalies data, but suffers from a lot of significant …

The determination of the gravimetric geoid is based on the magnitude of gravity observed at
the topographic surface of the Earth. In order to satisfy Laplace's equation, the masses …

This study investigates the uncertainties of digital elevation models (DEMs) using the triple
collocation (TC) method. DEMs from satellite missions are important for many geoscience …

The primary task of the IAG Sub-Commission on Gravity and Geoid in Africa is the
development of the vertical reference surface (the geoid) for the entire African continent. For …

The gravity database for the IAG African Geoid Project contains significantly large data gaps.
These large data gaps affect the interpolation precision of the reduced gravity anomalies …

In the framework of the activities of the IAG sub-commission on gravity and geoid in Africa, it
is needed to have a uniform gridded gravity data set to determine the earth's mathematical …

The determination of the gravimetric geoid is based on the magnitude of the gravity
observed at the topographic surface of the Earth. In order to satisfy Laplace's equation, the …