Afficher la notice abrégée

T-wave generation and propagation: a comparison between data and spectral element modeling.

hal.structure.identifierDomaines Océaniques [LDO]
dc.contributor.authorJAMET, Guillaume
hal.structure.identifierDomaines Océaniques [LDO]
dc.contributor.authorGUENNOU, Claude
hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorGUILLON, Laurent
hal.structure.identifierUniversité européenne de Bretagne - European University of Brittany [UEB]
hal.structure.identifierUniversité de Brest [UBO]
dc.contributor.authorMAZOYER, Camille
hal.structure.identifierDomaines Océaniques [LDO]
dc.contributor.authorROYER, Jean-Yves
dc.date.accessioned2021-05-14T10:02:39Z
dc.date.available2021-05-14T10:02:39Z
dc.date.issued2013-10
dc.identifier.issn0001-4966
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/78340
dc.description.abstractEnT-waves are underwater acoustic waves generated by earthquakes. Modeling of their generation and propagation is a challenging problem. Using a spectral element code-SPECFEM2D, this paper presents the first realistic simulations of T-waves taking into account major aspects of this phenomenon: The radiation pattern of the source, the propagation of seismic waves in the crust, the seismic to acoustic conversion on a non-planar seafloor, and the propagation of acoustic waves in the water column. The simulated signals are compared with data from the mid-Atlantic Ridge recorded by an array of hydrophones. The crust/water interface is defined by the seafloor bathymetry. Different combinations of water sound-speed profiles and sub-seafloor seismic velocities, and frequency content of the source are tested. The relative amplitudes, main arrival-times, and durations of simulated T-phases are in good agreement with the observed data; differences in the spectrograms and early arrivals are likely due to too simplistic source signals and environmental model. These examples demonstrate the abilities of the SPECFEM2D code for modeling earthquake generated T-waves.
dc.language.isoen
dc.publisherAcoustical Society of America
dc.title.enT-wave generation and propagation: a comparison between data and spectral element modeling.
dc.typeArticle de revue
dc.identifier.doi10.1121/1.4818902
dc.subject.halPhysique [physics]/Mécanique [physics]/Acoustique [physics.class-ph]
dc.subject.halSciences de l'ingénieur [physics]/Acoustique [physics.class-ph]
dc.subject.halPlanète et Univers [physics]/Sciences de la Terre
bordeaux.journalJournal of the Acoustical Society of America
bordeaux.page3376-85
bordeaux.volume134
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.issue4
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierinsu-00915042
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//insu-00915042v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20the%20Acoustical%20Society%20of%20America&rft.date=2013-10&rft.volume=134&rft.issue=4&rft.spage=3376-85&rft.epage=3376-85&rft.eissn=0001-4966&rft.issn=0001-4966&rft.au=JAMET,%20Guillaume&GUENNOU,%20Claude&GUILLON,%20Laurent&MAZOYER,%20Camille&ROYER,%20Jean-Yves&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée