Universität zu Köln

Shlykov, Arseny, Saraev, Alexander, Agrahari, Sudha ORCID: 0000-0002-6587-3684, Tezkan, Bulent and Singh, Akarsh (2021). One-dimensional Laterally Constrained Joint Anisotropic Inversion of CSRMT and ERT Data. J. Environ. Eng. Geophys., 26 (1). S. 35 - 49. DENVER: ENVIRONMENTAL ENGINEERING GEOPHYSICAL SOC. ISSN 1943-2658

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Abstract

In this paper, we discuss several approaches for a joint inversion of controlled source radio-magnetotelluric (CSRMT) and electrical resistivity tomography (ERT) data observed over anisotropic media. We compare results of 2D isotropic joint inversion with results of a newly developed joint 1D anisotropic inversion algorithm. The developed algorithm involves the full controlled source high frequency forward and inversion formulations without the plane wave assumption. We demonstrate that for measurements on an anisotropic subsurface the isotropic joint inversion cannot fit both datasets properly due to a high anisotropy of shallow horizons of quaternary sands and loams. The joint anisotropic inversion helps to solve this problem and highlights the advantages of a joint inversion of CSRMT and ERT data. We also demonstrate application of the laterally constrain algorithm for the anisotropic inversion. Results of the joint 1D anisotropic inversion of CSRMT and ERT data were successfully compared with existing borehole data.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Shlykov, Arseny UNSPECIFIED UNSPECIFIED UNSPECIFIED Saraev, Alexander UNSPECIFIED UNSPECIFIED UNSPECIFIED Agrahari, Sudha UNSPECIFIED orcid.org/0000-0002-6587-3684 UNSPECIFIED Tezkan, Bulent UNSPECIFIED UNSPECIFIED UNSPECIFIED Singh, Akarsh UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-583552
DOI:	10.32389/JEEG20-060
Journal or Publication Title:	J. Environ. Eng. Geophys.
Volume:	26
Number:	1
Page Range:	S. 35 - 49
Date:	2021
Publisher:	ENVIRONMENTAL ENGINEERING GEOPHYSICAL SOC
Place of Publication:	DENVER
ISSN:	1943-2658
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Geochemistry & Geophysics; Engineering, Geological Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/58355