Delaunay triangulation-based spatially constrained inversion for quasi 3D modeling of airborne TEM data

A. Viezzoli, A.V. Christiansen, E. Auken

Publikation: Bidrag til bog/rapport/konferenceproceedingsKonferenceartikel i proceedingspeer review

Abstrakt

The spatially constrained inversion (SCI) is a robust methodology for quasi-3D modeling of geoelectrical and EM data of varying spatial density, using a 1D forward solution. Information migrate horizontally through spatial constraints applied between nearest neighboring soundings, and allow resolution of layers that would be locally poorly resolved. The constraints are built using the Delaunay triangulation, which ensures automatic adaptation to data density variations. In this study the SCI was applied to airborne Time domain EM soundings, but it can be implemented also with other data types. The field case study proves that the SCI produces laterally smooth results that respect the 3D geological variations of sedimentary settings, while suppressing the elongated artifacts commonly seen in profile oriented data sets.

OriginalsprogEngelsk
TitelNear Surface 2007 - 13th European Meeting of Environmental and Engineering Geophysics
ForlagEuropean Association of Geoscientists and Engineers, EAGE
ISBN (Trykt)9073781817, 9789073781818
DOI
StatusUdgivet - 2007
Udgivet eksterntJa
Begivenhed13th European Meeting of Environmental and Engineering Geophysics of the Near Surface Geoscience Division of EAGE, Near Surface 2007 - Istanbul, Tyrkiet
Varighed: 3 sep. 20075 sep. 2007

Publikationsserier

NavnNear Surface 2007 - 13th European Meeting of Environmental and Engineering Geophysics

Konference

Konference13th European Meeting of Environmental and Engineering Geophysics of the Near Surface Geoscience Division of EAGE, Near Surface 2007
Land/OmrådeTyrkiet
ByIstanbul
Periode3/09/075/09/07

Programområde

  • Programområde 2: Vandressourcer

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