Hybrid inversion of airborne TEM data - Mixed precision responses for tunable performance and accuracy

C. Kirkegaard; A.V. Christiansen; E. Auken

doi:10.3997/2214-4609.20144366

Hybrid inversion of airborne TEM data - Mixed precision responses for tunable performance and accuracy

C. Kirkegaard, A.V. Christiansen, E. Auken

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › peer-review

Abstract

Modern airborne TEM surveys often produce extremely large datasets that can be very time consuming to invert using a full system forward model description. Often, approximate forward models are used providing very fast results at the expense of accuracy. We show how forward models of different precision can be combined in a versatile hybrid inversion, providing tunable accuracy and performance. Our study includes inversions of actual field data using different degrees of approximation. We show how this influences the resulting earth resistivity model, discuss the implications and provide performance metrics.

Original language	English
Title of host publication	Near Surface 2011 - 17th EAGE European Meeting of Environmental and Engineering Geophysics
Publisher	European Association of Geoscientists and Engineers
ISBN (Print)	978-90-73834-15-6
DOIs	https://doi.org/10.3997/2214-4609.20144366
Publication status	Published - 2011
Event	17th European Meeting of Environmental and Engineering Geophysics, Near Surface 2011 - Leicester, United Kingdom Duration: 12 Sept 2011 → 14 Sept 2011

Conference

Conference	17th European Meeting of Environmental and Engineering Geophysics, Near Surface 2011
Country/Territory	United Kingdom
City	Leicester
Period	12/09/11 → 14/09/11

Programme Area

Programme Area 2: Water Resources

Access to Document

10.3997/2214-4609.20144366

Cite this

Kirkegaard, C., Christiansen, A. V., & Auken, E. (2011). Hybrid inversion of airborne TEM data - Mixed precision responses for tunable performance and accuracy. In Near Surface 2011 - 17th EAGE European Meeting of Environmental and Engineering Geophysics Article cp-253-00003 European Association of Geoscientists and Engineers. https://doi.org/10.3997/2214-4609.20144366

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title = "Hybrid inversion of airborne TEM data - Mixed precision responses for tunable performance and accuracy",

abstract = "Modern airborne TEM surveys often produce extremely large datasets that can be very time consuming to invert using a full system forward model description. Often, approximate forward models are used providing very fast results at the expense of accuracy. We show how forward models of different precision can be combined in a versatile hybrid inversion, providing tunable accuracy and performance. Our study includes inversions of actual field data using different degrees of approximation. We show how this influences the resulting earth resistivity model, discuss the implications and provide performance metrics.",

author = "C. Kirkegaard and A.V. Christiansen and E. Auken",

year = "2011",

doi = "10.3997/2214-4609.20144366",

language = "English",

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booktitle = "Near Surface 2011 - 17th EAGE European Meeting of Environmental and Engineering Geophysics",

publisher = "European Association of Geoscientists and Engineers",

note = "17th European Meeting of Environmental and Engineering Geophysics, Near Surface 2011 ; Conference date: 12-09-2011 Through 14-09-2011",

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Kirkegaard, C, Christiansen, AV & Auken, E 2011, Hybrid inversion of airborne TEM data - Mixed precision responses for tunable performance and accuracy. in Near Surface 2011 - 17th EAGE European Meeting of Environmental and Engineering Geophysics., cp-253-00003, European Association of Geoscientists and Engineers, 17th European Meeting of Environmental and Engineering Geophysics, Near Surface 2011, Leicester, United Kingdom, 12/09/11. https://doi.org/10.3997/2214-4609.20144366

Hybrid inversion of airborne TEM data - Mixed precision responses for tunable performance and accuracy. / Kirkegaard, C.; Christiansen, A.V.; Auken, E.
Near Surface 2011 - 17th EAGE European Meeting of Environmental and Engineering Geophysics. European Association of Geoscientists and Engineers, 2011. cp-253-00003.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › peer-review

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AB - Modern airborne TEM surveys often produce extremely large datasets that can be very time consuming to invert using a full system forward model description. Often, approximate forward models are used providing very fast results at the expense of accuracy. We show how forward models of different precision can be combined in a versatile hybrid inversion, providing tunable accuracy and performance. Our study includes inversions of actual field data using different degrees of approximation. We show how this influences the resulting earth resistivity model, discuss the implications and provide performance metrics.

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Hybrid inversion of airborne TEM data - Mixed precision responses for tunable performance and accuracy

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