Inversion for depth and forward modelling of magnetically heterogeneous bodies

Roger Luke Clifton

doi:10.26182/5bee4907233b8

Inversion for depth and forward modelling of magnetically heterogeneous bodies

Roger Luke Clifton

School of Earth and Oceans

Research output: Thesis › Doctoral Thesis

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Abstract

A formula has been derived to provide depth estimates from a greater length of the magnetic power spectrum than by using the classic Spector-Grant formula.
Consequently magnetic depths have been profiled at intervals of 5 km across the
Northern Territory for up to three bodies at each sample of grid. Shallower bodies can be located using flightline data, the ubiquitous interference being addressed by seeking coherent patches in a spread of depth estimates across space and spectrum. Ground work for real-time calculation of interference is also set out. Modelling of detailed, heterogeneous bodies is done rapidly using 3-D Fourier convolution.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Dentith, Mike, Supervisor Cowan, Duncan, Supervisor
Award date	10 Oct 2018
DOIs	https://doi.org/10.26182/5bee4907233b8
Publication status	Unpublished - 2018

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10.26182/5bee4907233b8

THESIS - DOCTOR OF PHILOSOPHY - CLIFTON Roger Luke - 2018
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Cite this

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AB - A formula has been derived to provide depth estimates from a greater length of the magnetic power spectrum than by using the classic Spector-Grant formula.Consequently magnetic depths have been profiled at intervals of 5 km across theNorthern Territory for up to three bodies at each sample of grid. Shallower bodies can be located using flightline data, the ubiquitous interference being addressed by seeking coherent patches in a spread of depth estimates across space and spectrum. Ground work for real-time calculation of interference is also set out. Modelling of detailed, heterogeneous bodies is done rapidly using 3-D Fourier convolution.

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Inversion for depth and forward modelling of magnetically heterogeneous bodies

Abstract

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