Authors: E M Abdelrahman T M ElAraby E R AboEzz K S Soliman K S Essa
Publish Date: 2008/06/10
Volume: 165, Issue: 5, Pages: 967-979
Abstract
We have developed an automatic method to determine the depth of a buried sphere from numerical second horizontal derivative anomalies obtained from total field magnetic data The method is based on using a relationship between the depth and a combination of observations at symmetric points with respect to the coordinate of the projection of the center of the source in the plane of the measurement points with a free parameter graticule spacing The problem of depth determination has been transformed into the problem of finding a solution of a nonlinear equation of fz = 0 Procedures are also formulated to determine the magnetic moment and the effective angle of magnetization The method is applied to synthetic examples with and without random errors and tested on a field example from Senegal In all cases the depth solutions are in good agreement with the actual ones
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