Joint inversion of multi-configuration electromagnetic induction data to characterize subsurface electrical conductivity

Handle URI:
http://hdl.handle.net/10754/564509
Title:
Joint inversion of multi-configuration electromagnetic induction data to characterize subsurface electrical conductivity
Authors:
Jadoon, Khan; Moghadas, Davood; Jadoon, Anwar; Missimer, Thomas M.
Abstract:
Electromagnetic induction (EMI) devices are capable of measuring the cumulative electrical conductivity over a certain depth range. In this study, a numerical experiment has been performed to test a novel join inversion approach for the Geonics EM34 instrument, by considering different coil offsets (10, 20 and 40 m), different coil orientations (vertical and horizontal), and different frequencies (6.4, 1.6 and 0.4 kHz). The subsurface is considered as four-layer model having different conductivities. The global multilevel coordinate search optimization algorithm is sequentially combination with the local optimization algorithm to minimize the misfit between the measured and modeled data. The layer conductivities are well predicted by the join inversion of electromagnetic data. The response surface of the objective function was investigated to assess the sensitivity of the subsurface layer conductivities. The sensitivity of the conductivity for the top two layers is less as compared to the deeper layers. The proposed approach is promising for the fast mapping of true conductivity distributions over large areas.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC)
Publisher:
EAGE Publications
Journal:
Near Surface Geoscience 2012 – 18th European Meeting of Environmental and Engineering Geophysics
Conference/Event name:
18th European Meeting of Environmental and Engineering Geophysics of the Near Surface Geoscience Division of EAGE, Near Surface Geoscience 2012
Issue Date:
2012
DOI:
10.3997/2214-4609.20143496
Type:
Conference Paper
Appears in Collections:
Conference Papers; Water Desalination and Reuse Research Center (WDRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorJadoon, Khanen
dc.contributor.authorMoghadas, Davooden
dc.contributor.authorJadoon, Anwaren
dc.contributor.authorMissimer, Thomas M.en
dc.date.accessioned2015-08-04T07:02:48Zen
dc.date.available2015-08-04T07:02:48Zen
dc.date.issued2012en
dc.identifier.doi10.3997/2214-4609.20143496en
dc.identifier.urihttp://hdl.handle.net/10754/564509en
dc.description.abstractElectromagnetic induction (EMI) devices are capable of measuring the cumulative electrical conductivity over a certain depth range. In this study, a numerical experiment has been performed to test a novel join inversion approach for the Geonics EM34 instrument, by considering different coil offsets (10, 20 and 40 m), different coil orientations (vertical and horizontal), and different frequencies (6.4, 1.6 and 0.4 kHz). The subsurface is considered as four-layer model having different conductivities. The global multilevel coordinate search optimization algorithm is sequentially combination with the local optimization algorithm to minimize the misfit between the measured and modeled data. The layer conductivities are well predicted by the join inversion of electromagnetic data. The response surface of the objective function was investigated to assess the sensitivity of the subsurface layer conductivities. The sensitivity of the conductivity for the top two layers is less as compared to the deeper layers. The proposed approach is promising for the fast mapping of true conductivity distributions over large areas.en
dc.publisherEAGE Publicationsen
dc.titleJoint inversion of multi-configuration electromagnetic induction data to characterize subsurface electrical conductivityen
dc.typeConference Paperen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalNear Surface Geoscience 2012 – 18th European Meeting of Environmental and Engineering Geophysicsen
dc.conference.date3 September 2012 through 5 September 2012en
dc.conference.name18th European Meeting of Environmental and Engineering Geophysics of the Near Surface Geoscience Division of EAGE, Near Surface Geoscience 2012en
dc.conference.locationParisen
dc.contributor.institutionAgrosphere (IBG-3), Forschungszentrum Juelich, Germanyen
dc.contributor.institutionDepartment of Earth Sciences, COMSATS, Pakistanen
kaust.authorJadoon, Khanen
kaust.authorMissimer, Thomas M.en
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.