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(Pseudo-)3D Inversi...
(Pseudo-)3D Inversion of Geophysical Electromagnetic Induction Data by Using an Arbitrary Prior and Constrained to Ancillary Information
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- Zaru, Nicola (author)
- University of Cagliari
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- Rossi, Matteo (author)
- Lund University,Lunds universitet,Teknisk geologi,Institutionen för biomedicinsk teknik,Institutioner vid LTH,Lunds Tekniska Högskola,Engineering Geology,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH
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- Vacca, Giuseppina (author)
- University of Cagliari
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- Vignoli, Giulio (author)
- University of Cagliari
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Gervasi, Osvaldo (editor)
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Murgante, Beniamino (editor)
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Scorza, Francesco (editor)
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Rocha, Ana Maria A. C. (editor)
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Garau, Chiara (editor)
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Karaca, Yeliz (editor)
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Torre, Carmelo M. (editor)
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(creator_code:org_t)
- 2023
- 2023
- English 15 s.
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In: Computational Science and Its Applications – ICCSA 2023 Workshops, Proceedings. - 1611-3349 .- 0302-9743. - 9783031371257 ; 14111 LNCS, s. 624-638
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Abstract
Subject headings
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- Electromagnetic induction (EMI) methods are often used to map rapidly large areas with minimal logistical efforts. However, they are limited by a small number of frequencies and by their severe ill-posedness. On the other hand, electrical resistivity tomography (ERT) results are generally considered more reliable, with no need for specific calibration procedures and easy 2D/3D inversion. Still, ERT surveys are definitely more time-consuming, and, ideally, an approach with the advantages of both EMI and ERT would be optimal. The present research addresses this issue by incorporating realistic constraints into EMI inversion, going beyond simplistic spatial constraints like smooth or sharp regularization terms, while taking into consideration the ancillary information already available about the investigated site. We demonstrate how additional pre-existing information, such as a reference model (i.e., an existing ERT section) can enhance the EMI inversion. The study verifies the results against observations from boreholes.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Geoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Geotechnical Engineering (hsv//eng)
Keyword
- Electromagnetic Induction
- Realistic Prior Distribution
- Spatially Constrained Inversion
Publication and Content Type
- kon (subject category)
- ref (subject category)
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- By the author/editor
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Zaru, Nicola
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Rossi, Matteo
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Vacca, Giuseppin ...
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Vignoli, Giulio
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Gervasi, Osvaldo
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Murgante, Beniam ...
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show more...
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Scorza, Francesc ...
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Rocha, Ana Maria ...
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Garau, Chiara
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Karaca, Yeliz
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Torre, Carmelo M ...
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show less...
- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Civil Engineerin ...
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and Geotechnical Eng ...
- Articles in the publication
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Computational Sc ...
- By the university
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Lund University