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|Authors: ||Caratori Tontini, F.*|
|Title: ||Rapid 3-D forward model of potential fields with application to the Palinuro Seamount magnetic anomaly (southern Tyrrhenian Sea, Italy)|
|Title of journal: ||Journal of Geophysical Research|
|Series/Report no.: ||/ 114 (2009)|
|Issue Date: ||13-Feb-2009|
|Keywords: ||potential field modeling|
|Abstract: ||We show a set of forward model equations in the Fourier domain for calculating the
3-D gravity and magnetic anomalies of a given 3-D distribution of density or
magnetization. One property of the potential field equations is that they are given by
convolution products, providing a very simple analytic expression in the Fourier domain.
Under this assumption, the domain of the density or magnetization parameters is
connected by a biunivoc relationship with the data space, and potential field anomalies can
be seen as filtered versions of the corresponding density or magnetization distributions.
A very fine spatial discretization can be obtained by using a large number of points
within a unique 3-D grid, where both the source distributions and field data are defined.
The main advantage of this formulation is that it dramatically reduces execution times,
providing a very fast forward model tool useful for modeling anomalies at different
altitudes. We use this method to evaluate an average magnetization of 8 A/m for the
Palinuro Seamount in the Tyrrhenian Sea (southern Italy), thus performing a joint
interpretation of morphological and newly acquired magnetic data.|
|Appears in Collections:||Papers Published / Papers in press|
04.05.04. Magnetic anomalies
04.02.02. Gravity methods
04.03.04. Gravity anomalies
04.02.04. Magnetic and electrical methods
05.01.05. Algorithms and implementation
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