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Two-Dimensional Occam Model of COPROD2 Data: First Order Description of Resolution and Variance
Department of Solid Earth Physics, Uppsala University.ORCID iD: 0000-0002-1629-2920
1993 (English)In: Journal of Geomagnetism and Geoelectricity, ISSN 0022-1392, Vol. 45, no 9, p. 1027-1037Article in journal (Refereed) Published
Abstract [en]

A two-dimensional Occam model of crustal electrical conductivity is derived based on data from 35 magnetotelluric stations on a profile in Saskatchewan, Canada. The model is discussed in relation to a first order description of the resolution and variance of the model parameters. Prior to the two-dimensional Occam's inversion, the data are analysed with respect to underestimated data errors. The analysis is based on separate D+ inversions of the E- and H-polarization responses and a procedure for adjusting the data errors is presented. The main features of the model are the presence of two conductive structures with vertically integrated conductivity exceeding 30,000 S and 100, 000 S respectively. In addition to these main features, some minor conductive structures are inferred.

Place, publisher, year, edition, pages
Society of Geomagnetism and Earth, Planetary and Space Sciences , 1993. Vol. 45, no 9, p. 1027-1037
National Category
Geophysics
Research subject
Exploration Geophysics
Identifiers
URN: urn:nbn:se:ltu:diva-68720DOI: 10.5636/jgg.45.1027Scopus ID: 2-s2.0-0027880769OAI: oai:DiVA.org:ltu-68720DiVA, id: diva2:1205584
Available from: 2018-05-14 Created: 2018-05-14 Last updated: 2018-05-14Bibliographically approved

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Rasmussen, Thorkild Maack
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