Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/7982
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dc.contributor.authorallDi Giulio, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.contributor.authorallSavvaidis, A.; Institute of Engineering Seismology & Earthquake Engineering, EPPO-ITSAK, Thessaloniki, Greeceen
dc.contributor.authorallOhrnberger, M.; University of Potsdam, Institute of Earth and Environmental Science, Potsdam, Germanyen
dc.contributor.authorallWathelet, M.; Université Joseph Fourier, Institut des Sciences de la Terre, Grenoble, Franceen
dc.contributor.authorallCornou, C.; Université Joseph Fourier, Institut des Sciences de la Terre, Grenoble, Franceen
dc.contributor.authorallKnapmeyer-Endrun, B.; University of Potsdam, Institute of Earth and Environmental Science, Potsdam, Germanyen
dc.contributor.authorallRenalier, F.; Université Joseph Fourier, Institut des Sciences de la Terre, Grenoble, Franceen
dc.contributor.authorallTheodoulidis, N.; Institute of Engineering Seismology & Earthquake Engineering, EPPO-ITSAK, Thessaloniki, Greeceen
dc.contributor.authorallBard, P. Y.; Université Joseph Fourier, Institut des Sciences de la Terre, Grenoble, Franceen
dc.date.accessioned2012-06-11T06:38:14Zen
dc.date.available2012-06-11T06:38:14Zen
dc.date.issued2012-05-02en
dc.identifier.urihttp://hdl.handle.net/2122/7982en
dc.description.abstractThe inversion of surface-wave dispersion curve to derive shear-wave velocity profile is a very delicate process dealing with a non-unique problem, which is strongly dependent on the model space parameterization. When independent and reliable information are not available, the selection of most representative models within the ensemble produced by the inversion is often difficult. We present a strategy in the inversion of dispersion curves able to investigate the influence of the parameterization of the model space, and to select a ‘’best’’ class of models. We analyze surface-wave dispersion curves measured at 14 European strong-motion sites within the EC-project NERIES. We focus on the inversion task exploring the model space by means of four distinct parameterization classes composed of layers progressively added over a half-space. The classes differ in the definition of the shear-wave velocity profile; we consider models with uniform velocity as well as models with increasing velocity with depth. At each site and for each model parameterization, we perform an extensive surface-wave inversion (200100 models for 5 seeds) using the conditional neighbourhood algorithm. We address the model evaluation following the corrected Akaike’s Information Criterion (AICc) which combines the concept of misfit to the number of degrees of freedom (dof) of the system. The misfit is computed as least-squares estimation between theoretical and observed dispersion curve. The model complexity is accounted in a penalty term by AICc. By applying such inversion strategy on 14 strong-motion sites, we find that the best parameterization of the model space is mostly 3-4 layers over a half-space; where the shear-wave velocity of the uppermost layers can follow uniform or power-law dependence with depth. The shear-wave velocity profiles derived by inversion agree with shear-wave velocity profiles provided by borehole surveys at approximately 80% of the sites.en
dc.language.isoEnglishen
dc.publisher.nameSociety of Exploration Geophysicistsen
dc.relation.ispartofGeophysicsen
dc.relation.ispartofseries3/77 (2012)en
dc.subjectsurface-wave dispersion inversionen
dc.titleExploring the model space and ranking a best class of models in surface- wave dispersion inversion: Application at European strong-motion sitesen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumberB147–B166en
dc.subject.INGV04. Solid Earth::04.06. Seismology::04.06.04. Ground motionen
dc.identifier.doi10.1190/GEO2011-0116.1en
dc.description.obiettivoSpecifico4.1. Metodologie sismologiche per l'ingegneria sismicaen
dc.description.journalTypeJCR Journalen
dc.description.fulltextrestricteden
dc.relation.issn0016-8033en
dc.relation.eissn1942-2156en
dc.contributor.authorDi Giulio, G.en
dc.contributor.authorSavvaidis, A.en
dc.contributor.authorOhrnberger, M.en
dc.contributor.authorWathelet, M.en
dc.contributor.authorCornou, C.en
dc.contributor.authorKnapmeyer-Endrun, B.en
dc.contributor.authorRenalier, F.en
dc.contributor.authorTheodoulidis, N.en
dc.contributor.authorBard, P. Y.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.contributor.departmentInstitute of Engineering Seismology & Earthquake Engineering, EPPO-ITSAK, Thessaloniki, Greeceen
dc.contributor.departmentUniversity of Potsdam, Institute of Earth and Environmental Science, Potsdam, Germanyen
dc.contributor.departmentUniversité Joseph Fourier, Institut des Sciences de la Terre, Grenoble, Franceen
dc.contributor.departmentUniversité Joseph Fourier, Institut des Sciences de la Terre, Grenoble, Franceen
dc.contributor.departmentUniversity of Potsdam, Institute of Earth and Environmental Science, Potsdam, Germanyen
dc.contributor.departmentUniversité Joseph Fourier, Institut des Sciences de la Terre, Grenoble, Franceen
dc.contributor.departmentInstitute of Engineering Seismology & Earthquake Engineering, EPPO-ITSAK, Thessaloniki, Greeceen
dc.contributor.departmentUniversité Joseph Fourier, Institut des Sciences de la Terre, Grenoble, Franceen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia-
crisitem.author.deptITSAK-
crisitem.author.deptIGUP, Potsam, Germany-
crisitem.author.deptLGIT, University J. Fourier, Grenoble, France-
crisitem.author.deptUniversity of Potsdam, Institute of Earth and Environmental Science, Potsdam, Germany-
crisitem.author.deptUniversité Joseph Fourier, Institut des Sciences de la Terre, Grenoble, France-
crisitem.author.deptITSAK, Thessaloniki, Grrece-
crisitem.author.deptLGIT, Grenoble, France-
crisitem.author.orcid0000-0002-4097-7102-
crisitem.author.orcid0000-0002-0664-5315-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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