Articles | Volume 22, issue 2
Nonlin. Processes Geophys., 22, 215–232, 2015
Nonlin. Processes Geophys., 22, 215–232, 2015

Research article 24 Apr 2015

Research article | 24 Apr 2015

Estimation of the total magnetization direction of approximately spherical bodies

V. C. Oliveira Jr. et al.

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Cited articles

Almeida, F. F. M.: Relações tectônicas das rochas alcalinas mesozóicas da região meridional da plataforma sul-americana, Revista Brasileira de Geociências, 13, 139–158, 1983 (in Brazilian Portuguese).
Aster, R. C., Borchers, B., and Thurber, C. H.: Parameter Estimation and Inverse Problems (International Geophysics), Academic Press, San Diego, USA, 2005.
Baranov, V.: A new method for interpretation of aeromagnetic maps: Pseudo-gravimetric anomalies, Geophysics, 22, 359–382,, 1957.
Baranov, V. and Naudy, H.: Numerical calculation of the formula of reduction to the magnetic pole, Geophysics, 29, 67–79,, 1964.
Barbosa, V. C. F. and Silva, J. B. C.: Interactive 2D magnetic inversion: A tool for aiding forward modeling and testing geologic hypotheses, Geophysics, 71, L43–L50,, 2006.
Short summary
We have developed a fast total-field anomaly inversion to estimate the magnetization direction of multiple sources with approximately spherical shapes and known centres. It requires neither the prior computation of any transformation-like reduction to the pole nor the use of regularly spaced data on a horizontal grid. The method contains flexibility to be implemented as a linear or non-linear inverse problem. Applications to synthetic and field data show the good performance of our method.