Joint Inversion of DC and TEM Methods for Geological Imaging

Cassiano Antonio  Bortolozo; Tristan Pryer; Julian David Realpe Campaña; Fernando Acácio Monteiro Dos Santos; Gabriela Serejo De Oliveira; Jorge Luís Porsani; Georgios Sialounas

doi:10.1007/s00024-024-03529-6

Joint Inversion of DC and TEM Methods for Geological Imaging

Cassiano Antonio Bortolozo, Tristan Pryer, Julian David Realpe Campaña, Fernando Acácio Monteiro Dos Santos, Gabriela Serejo De Oliveira, Jorge Luís Porsani, Georgios Sialounas

Research output: Contribution to journal › Article › peer-review

2 Citations (SciVal)

Abstract

In this study, we present a new methodology for 2D joint inversion, or data fusion, of DC electro-resistivity and Transient Electromagnetic methods. These geophysical techniques have traditionally been used separately, but by combining them, we aim to decrease ambiguities and increase the robustness of the resulting subsurface model. The inversion process was conducted using the classical Occam method with smooth models and synthetic studies were also conducted to understand the limitations and advantages of the method. We also applied the algorithm to data obtained in groundwater exploration in Brazil, and the results showed that the 2D joint inversion is promising in increasing accuracy and reducing ambiguity in subsurface imaging.

Original language	English
Pages (from-to)	2541-2560
Number of pages	20
Journal	Pure and Applied Geophysics
Volume	181
Issue number	8
Early online date	24 Jul 2024
DOIs	https://doi.org/10.1007/s00024-024-03529-6
Publication status	Published - 31 Aug 2024

Funding

C.B. was partially supported by the Conselho Nacional de Desenvolvimento Cient\u00EDfico e Tecnol\u00F3gico (CNPq) through the Postdoctoral Scholarship (Grant 152269/2022-3), the Research Fellowship Program (Grant 301201/2022-6), the Research Financial Support (Universal Project grant 433481/2018-8), Funda\u00E7\u00E3o de Amparo \u00E0 Pesquisa do Estado de S\u00E3o Paulo (FAPESP) for the scholarship (Grant 2011/06404-0). J. L. P. was partially supported by the Funda\u00E7\u00E3o de Amparo \u00E1 Pesquisa do Estado de S\u00E3o Paulo (FAPESP) through equipment grants (Grants 2009/08466-3 and 2012/15338-4). J.D.R.C. was partially supported by a CAPES-Coordena\u00E7\u00E3o de Aperfei\u00E7oamento de Pessoal de N\u00EDvel Superior scholarship. G.S. was partially supported by a Coordena\u00E7\u00E3o de Aperfei\u00E7oamento de Pessoal de Nivel Superior (CAPES-PROEX) scholarship (Grant 88882.332951/2019-01). T. P. is grateful for partial support from the EPSRC programme grant EP/W026899/1 and the Leverhulme RPG-2021-238. G. S. was supported through a PhD scholarship awarded by the EPSRC Centre for Doctoral Training in the Mathematics of Planet Earth at Imperial College London and the University of Reading EP/L016613/1.

Funders	Funder number
EPSRC Centre for Doctoral Training
Conselho Nacional de Desenvolvimento Cientifico e Tecnologico
Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior
Fundação de Amparo à Pesquisa do Estado de São Paulo	2011/06404-0, 2009/08466-3, 2012/15338-4
Fundação de Amparo à Pesquisa do Estado de São Paulo
University of Reading	EP/L016613/1
University of Reading
The Leverhulme Trust	RPG-2021-238
The Leverhulme Trust
CAPES-PROEX	88882.332951/2019-01
CNPq	433481/2018-8, 301201/2022-6, 152269/2022-3
EPSRC - EU	EP/W026899/1

Keywords

2D joint inversion
Brazil
Direct current electrical resistivity
Paranaá basin
data fusion
sedimentary and crystalline aquifers
transient electromagnetic

ASJC Scopus subject areas

Geochemistry and Petrology
Geophysics

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10.1007/s00024-024-03529-6Licence: CC BY

Cite this

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abstract = "In this study, we present a new methodology for 2D joint inversion, or data fusion, of DC electro-resistivity and Transient Electromagnetic methods. These geophysical techniques have traditionally been used separately, but by combining them, we aim to decrease ambiguities and increase the robustness of the resulting subsurface model. The inversion process was conducted using the classical Occam method with smooth models and synthetic studies were also conducted to understand the limitations and advantages of the method. We also applied the algorithm to data obtained in groundwater exploration in Brazil, and the results showed that the 2D joint inversion is promising in increasing accuracy and reducing ambiguity in subsurface imaging.",

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AU - Bortolozo, Cassiano Antonio

AU - Pryer, Tristan

AU - Campaña, Julian David Realpe

AU - Dos Santos, Fernando Acácio Monteiro

AU - De Oliveira, Gabriela Serejo

AU - Porsani, Jorge Luís

AU - Sialounas, Georgios

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KW - Direct current electrical resistivity

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KW - sedimentary and crystalline aquifers

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Joint Inversion of DC and TEM Methods for Geological Imaging

Abstract

Funding

Keywords

ASJC Scopus subject areas

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