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Joint inversion of teleseismic P waveforms and surface-wave group velocities from ambient seismic noise in the Bohemian Massif
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SYSNO ASEP 0371091 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Joint inversion of teleseismic P waveforms and surface-wave group velocities from ambient seismic noise in the Bohemian Massif Author(s) Růžek, Bohuslav (GFU-E) ORCID, RID
Plomerová, Jaroslava (GFU-E) ORCID, RID, SAI
Babuška, Vladislav (GFU-E) ORCID, RID, SAISource Title Studia geophysica et geodaetica. - : Geofyzikální ústav AV ČR, v. v. i. - ISSN 0039-3169
Roč. 56, č. 1 (2012), s. 107-140Number of pages 34 s. Publication form Print - P Language eng - English Country CZ - Czech Republic Keywords receiver function ; seismic noise ; joint inversion ; Bohemian Massif ; velocity structure Subject RIV DC - Siesmology, Volcanology, Earth Structure R&D Projects GA205/07/1088 GA ČR - Czech Science Foundation (CSF) IAA300120709 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) LM2010008 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z30120515 - GFU-E (2005-2011) UT WOS 000301037400007 DOI 10.1007/s11200-010-9089-7 Annotation Joint inversion of teleseismic P-waveforms and local group velocities of surface waves retrieved from ambient seismic noise has been performed to model velocity structure of the crust and uppermost mantle of the Bohemian Massif. We analysed P-waveforms of 381 teleseismic earthquakes recorded at 54 broadband seismic stations located on the territory of the Czech Republic and in its close surroundings. Group velocities of Rayleigh and Love surface waves were obtained by cross-correlating long-term recordings of seismic noise. The basis for waveform inversion is the well-known methodology of P-to-S receiver functions constructed from converted phases. Due to instabilities in direct inversion of receiver functions caused by the necessity of applying deconvolution, we propose an alternative formulation to fit observed and calculated radial components of P waveforms. The joint inversion is transformed into a search for the minimum of the cost function defined as a weighted sum of waveform and group velocity misfits. Workplace Geophysical Institute Contact Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Year of Publishing 2013
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