Thin sheet conductance models from geomagnetic induction data: application to induction anomalies at the transition from the Bohemian Massif to the West Carpathians

0354044 - GFÚ 2011 RIV DE eng C - Conference Paper (international conference)
Červ, Václav - Kováčiková, Světlana - Menvielle, M. - Pek, Josef
Thin sheet conductance models from geomagnetic induction data: application to induction anomalies at the transition from the Bohemian Massif to the West Carpathians.
Protokoll über das 23. Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung. Potsdam: Deutsche Geophysikalische Gesellschaft, 2010 - (Ritter, O.; Weckmann, L.), s. 232-243. ISSN 0946-7467.
[Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung /23./. Potsdam (DE), 28.09.2009-02.10.2009]
R&D Projects: GA ČR GA205/07/0292; GA AV ČR IAA300120703
Institutional research plan: CEZ:AV0Z30120515
Keywords : mantle conductivity * inverse problems * Bohemian Massif
Subject RIV: DE - Earth Magnetism, Geodesy, Geography

Thin sheet approximation of Earth’s conductive structures made it possible to quantitatively estimate effects of lateral conductivity variations in the Earth long before full 3-D electromagnetic modeling was practicable. The thin sheet approach is still useful when induction data with limited vertical resolution are to be interpreted on a surface. It especially refers to collections of long period induction arrows across large areas and geological units. For this purpose, inverse procedures, both linearized and stochatic, for a conductance distribution in a thin sheet have been suggested recently. We present a stochastic Monte Carlo inversion of geomagnetic induction data based on the bayesian formulation of the inverse problem.
Permanent Link: http://hdl.handle.net/11104/0193131