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Sovremennyje metody izmerenija, obrabotki a interpretaciji elektromagnitnych dannych
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SYSNO ASEP 0335813 Document Type M - Monograph Chapter R&D Document Type Monograph Chapter Title Vlijanije električeskoj anizotropiji na magnitotelluričeskije dannyje: modelirovanije i eksperimentalnyje nabljudenija Title Effects of electrical anisotropy on magnetotelluric data: modelling and experiments Author(s) Pek, Josef (GFU-E) ORCID, RID Source Title Sovremennyje metody izmerenija, obrabotki a interpretaciji elektromagnitnych dannych. - Moskva : Knižnyj dom LIBROKOM, 2009 / Spičak V. V. - ISBN 978-5-397-00577-7 Pages s. 110-135 Number of pages 26 s. Number of copy 1500 Number of pages 284 Language rus - Russian Country RU - Russian Federation Keywords anisotropic conductivities ; magnetotelluric data ; magnetotelluric model Subject RIV DE - Earth Magnetism, Geodesy, Geography R&D Projects IAA3012401 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) IAA300120703 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GA205/06/0557 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z30120515 - GFU-E (2005-2011) Annotation Glava posveščena poslednim dostiženijam v modelirovaniji elektromagnitnych polej v anizotropnych strukturach Zemli. My vvodim magnitotelluričeskuju (MT) model s proizvolnoj anizotropijej, proizvodim kratkij obzor metodov modelirovanija (MT) polej v anizotropnych strukturach Zemli i boleje detalno opisyvajem osnovnyje etapy čislennogo modelirovanija dlja slučaja dvumernych anizotropnych provodnikov. Rassmatrivajutsja neskolko charakternych modelnych situacij, kotoryje illjustrirujut vozmožnosť pojavlenija zametnych iskaženij geomagnitnych indukcionnych i MT dannych svjazannych s anizotropnymi strukturami. Dlja etich situacij my provodim sopostavlenije rezultatov rasčotov na osnove sintetičeskich modelej s eksperimentalnymi dannymi elektromagnitnych zondirovanij v zonach verojatnoj anizotropiji, obuslovlennoj specifičeskimi tektoničeskimi uslovijami. Description in English The chapter is devoted to the advances in the modelling of electromagnetic fields in anisotropic Earth’s structures. We introduce the MT model with arbitrary anisotropy, briefly summarize methods for the modelling of MT fields in anisotropic Earth’s structures, and show the basic steps of the numerical modelling for 2 D anisotropic conductors in more detail. Then we deal with a few specific model situations that illustrate possible significant distortions of the MT and geomagnetic induction data by anisotropic structures. For those situations, we confront predictions from the synthetic models with experimental electromagnetic sounding data from localities where the anisotropy is likely to occur due to a specific tectonic setting. Workplace Geophysical Institute Contact Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Year of Publishing 2010
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