Trans-dimensional Bayesian inversion of Airborne Electromagnetic data for 2D conductivity profiles

This paper presents the application of a novel trans-dimensional sampling approach to a time domain airborne electromagnetic (AEM) inverse problem to solve for plausible conductivities of the subsurface. Geophysical inverse problems, such as time domain AEM, are well known to have a large degree of non-uniqueness. Common least-squares optimization approaches fail to take this into account and provide a single solution with linearized estimates of uncertainty which can result in overly optimistic appraisal of the conductivity of the subsurface. In this new non-linear approach, the spatial complexity of a 2D profile is controlled directly by the data. By examining an ensemble of proposed conductivity profiles it accommodates non-uniqueness and provides more robust estimates of uncertainties.


<b>Citation:</b> Hawkins, R., Brodie, R. C., & Sambridge, M. (2018). Trans-dimensional Bayesian inversion of airborne electromagnetic data for 2D conductivity profiles. <i>Exploration Geophysics</i>, 49(2), 134–147. https://doi.org/10.1071/EG16139

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Date (Publication)
2016-12-01T00:00:00
Date (Revision)
2024-04-18T06:38:44
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Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/102642

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CSIRO Publishing

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Hawkins, R.

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Brodie, R.

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Author

Sambridge, M.

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Exploration Geophysics

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Volume 49, 2018 - Issue 2

Page

134-147

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Scientific publication of a new geophysical inversion method.

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Completed
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Commonwealth of Australia (Geoscience Australia)

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Minerals, Energy and Groundwater Division

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LeyCooper, Y.

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  • Geoscientific information

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Product data repository: Various Formats

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Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

theme.ANZRC Fields of Research.rdf

  • EARTH SCIENCES

Keywords

  • airborne electromagnetic - AEM

Keywords

  • inversion

Keywords

  • Bayisian

Keywords

  • non-uniqueness

Keywords

  • trans-dimensional

Keywords

  • uncertainty

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  • Published_External

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Creative Commons Attribution 4.0 International Licence

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CC-BY

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4.0

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Australian Government Security ClassificationSystem

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2018-11-01T00:00:00
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English
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Publication submitted to Exploration Geophysics on 11 November 2016

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Australian Government Security ClassificationSystem

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2018-11-01T00:00:00
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https://www.protectivesecurity.gov.au/Pages/default.aspx

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Unclassified

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urn:uuid/451d7c01-67ae-4bd6-b5b7-e88e625bc4d6

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GeoNetwork UUID

Language
English
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UTF8
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Commonwealth of Australia (Geoscience Australia)

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LeyCooper, Y.

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LeyCooper, Y.

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Journal Article

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Geoscience Australia - short identifier for metadata record with

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eCatId/102642

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https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/451d7c01-67ae-4bd6-b5b7-e88e625bc4d6

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https://ecat.ga.gov.au/geonetwork/ofmJ3/eng/catalog.search#/metadata/451d7c01-67ae-4bd6-b5b7-e88e625bc4d6

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https://ecat.ga.gov.au/geonetwork/dashboard/eng/catalog.search#/metadata/451d7c01-67ae-4bd6-b5b7-e88e625bc4d6

Date info (Creation)
2016-11-02T11:52:24
Date info (Revision)
2016-11-14T16:26:25

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AU/NZS ISO 19115-1:2014

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ISO 19115-1:2014

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ISO 19115-3

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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

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Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

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Keywords

Bayisian airborne electromagnetic - AEM inversion non-uniqueness trans-dimensional uncertainty
theme.ANZRC Fields of Research.rdf
EARTH SCIENCES

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