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On the approximation of the potential fields when using right rectangular prismsNormal access

Authors: Michele De Stefano and Stefano Panepinto
Journal name: Geophysical Prospecting
Issue: Vol 65, No 5, September 2017 pp. 1366 - 1379
DOI: 10.1111/1365-2478.12468
Organisations: Wiley
Language: English
Info: Article, PDF ( 6.14Mb )

Summary:
Due to its simplicity, stability, and efficiency, the use of right rectangular prisms is still widespread for potential field modelling and inversion. It is well known that modelling the subsurface with Cartesian grids has important consequences in terms of accuracy of the results. In this paper, we review the main issues that geophysicists face in day-to-day work when trying to use right rectangular prisms for performing gravity or full tensor gravity modelling and inversions. We demonstrate the results both theoretically and through Monte Carlo simulations, also exploiting concepts from fractal geometry. We believe that the guidelines contained in this paper may suggest a good practice for the day-to-day work of geophysicists dealing with gravity and full tensor gravity data.

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