Abstract:
A Method for the validation of gravity measurements using the Least
Squares Collocation (LSC) method and Gravsoft software of Copenhagen University
is applied on a small zone in Algeria. The gravity data, provided by the B.G.I.,
consisting of 12472 gravity measurements covering the region, were analysed and
validated. The validation has been applied systematically to predict free-air gravity
anomalies reduced from the effect of the spherical harmonic coefficient set OSU91A.
The detected gross errors represent 4.7% of the land data. This work shows the non-
homogeneity of the data used and their insufficient accuracy.