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GRAVITY AND MAGNETIC FORWARD MODELLING OF THE REGOLITH

GRAVITY AND MAGNETIC FORWARD MODELLING OF THE REGOLITH,Philip J. Heath,Nicholas Direen

GRAVITY AND MAGNETIC FORWARD MODELLING OF THE REGOLITH  
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In order to determine geophysical responses of regolith scenarios (and geology in general), it is necessary to create a simulation of the scenario on a computer. This paper describes a forward modelling process to calculate components of the Earth's gravity and/or magnetic field for a general regolith scenario. The process can be applied to geological scenarios in general. To start, the formulae required to calculate the fields for a rectangular prism are listed. These can be added cumulatively in order to model complex regolith scenarios. The forward modelling methodology is then outlined, discussing the various steps of the process. The results section shows the gravity and magnetic responses of some simple objects, in order to show the validity of the formulae, and finally the gravity and magnetic response of a full regolith model is presented.
Published in 2004.
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