Non-linear conjugate gradient magnetotelluric inversion for 2-D anisotropic conductivities
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F12%3A00388144" target="_blank" >RIV/67985530:_____/12:00388144 - isvavai.cz</a>
Result on the web
<a href="http://ebooks.gfz-potsdam.de/pubman/faces/viewItemFullPage.jsp?itemId=escidoc:65354:1" target="_blank" >http://ebooks.gfz-potsdam.de/pubman/faces/viewItemFullPage.jsp?itemId=escidoc:65354:1</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Non-linear conjugate gradient magnetotelluric inversion for 2-D anisotropic conductivities
Original language description
We report on the state of the art in the development of a non-linear conjugate gradient (NLCG) version of the 2-D inverse algorithm for magnetotelluric (MT) data over structures with arbitrary electrical anisotropy. The algorithm is based on the Occam inverse strategy. As a direct solver, our 2-D finite volume forward modeling program for structures with arbitrary anisotropy is employed, which is also further used to effectively evaluate parametric sensitivities by employing the reciprocity principle. Astandard Polak-Ribiere NLCG algorithm is then applied to minimize the inversion objective function which consists of a data misfit term and of regularization penalties applied to both the structure complexity and anisotropy throughout the model. The algorithm offers considerable savings to the computing time and memory demands due to both the reciprocity-based evaluation of the parametric sensitivities and on-line computation of products of the Jacobian and its transverse with a vector
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DE - Earth magnetism, geodesy, geography
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP210%2F10%2F2227" target="_blank" >GAP210/10/2227: Regional and global distribution of the electrical conductivity in the Earth?s mantle from ground-based and satellite observations</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Protokoll über das 24. Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung
ISSN
0946-7467
e-ISSN
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Volume of the periodical
24
Issue of the periodical within the volume
1
Country of publishing house
DE - GERMANY
Number of pages
20
Pages from-to
187-206
UT code for WoS article
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EID of the result in the Scopus database
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