3D raytracing through homogeneous anisotropic media with smooth interfaces

Detalhes bibliográficos
Autor(a) principal: Costa,Jessé
Data de Publicação: 2002
Outros Autores: Schoenberg,Michael, Urban,Jaime
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Geofísica (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-261X2002000300003
Resumo: Two-point raytracing problem is solved for events in a piecewise homogeneous and laterally varying 3D anisotropic media by continuation techniques. In conjunction with the shooting method the algorithm can be used for computation of qP, qS1, and qS2 events. The algorithm has the same performance and robustness as previous implementations of the continuation method for tracing rays in isotropic models. Routines based on our algorithm have several useful applications. First, an efficient forward problem solver for traveltime inversion of elastic parameters in the presence of anisotropy. Second, Newton-Raphson iterations during two-point raytracing produce wavefront attributes, slowness and wavefront curvature. These attributes allows the computation of geometrical spreading and second order approximations for traveltimes. Therefore it can be used to investigate the effects of anisotropy on CRS, in simple velocity models.
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spelling 3D raytracing through homogeneous anisotropic media with smooth interfacesRay theorycontinuation methodanisotropyTwo-point raytracing problem is solved for events in a piecewise homogeneous and laterally varying 3D anisotropic media by continuation techniques. In conjunction with the shooting method the algorithm can be used for computation of qP, qS1, and qS2 events. The algorithm has the same performance and robustness as previous implementations of the continuation method for tracing rays in isotropic models. Routines based on our algorithm have several useful applications. First, an efficient forward problem solver for traveltime inversion of elastic parameters in the presence of anisotropy. Second, Newton-Raphson iterations during two-point raytracing produce wavefront attributes, slowness and wavefront curvature. These attributes allows the computation of geometrical spreading and second order approximations for traveltimes. Therefore it can be used to investigate the effects of anisotropy on CRS, in simple velocity models.Sociedade Brasileira de Geofísica2002-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-261X2002000300003Revista Brasileira de Geofísica v.20 n.3 2002reponame:Revista Brasileira de Geofísica (Online)instname:Sociedade Brasileira de Geofísica (SBG)instacron:SBG10.1590/S0102-261X2002000300003info:eu-repo/semantics/openAccessCosta,JesséSchoenberg,MichaelUrban,Jaimeeng2007-01-18T00:00:00Zoai:scielo:S0102-261X2002000300003Revistahttp://www.scielo.br/rbgONGhttps://old.scielo.br/oai/scielo-oai.php||sbgf@sbgf.org.br1809-45110102-261Xopendoar:2007-01-18T00:00Revista Brasileira de Geofísica (Online) - Sociedade Brasileira de Geofísica (SBG)false
dc.title.none.fl_str_mv 3D raytracing through homogeneous anisotropic media with smooth interfaces
title 3D raytracing through homogeneous anisotropic media with smooth interfaces
spellingShingle 3D raytracing through homogeneous anisotropic media with smooth interfaces
Costa,Jessé
Ray theory
continuation method
anisotropy
title_short 3D raytracing through homogeneous anisotropic media with smooth interfaces
title_full 3D raytracing through homogeneous anisotropic media with smooth interfaces
title_fullStr 3D raytracing through homogeneous anisotropic media with smooth interfaces
title_full_unstemmed 3D raytracing through homogeneous anisotropic media with smooth interfaces
title_sort 3D raytracing through homogeneous anisotropic media with smooth interfaces
author Costa,Jessé
author_facet Costa,Jessé
Schoenberg,Michael
Urban,Jaime
author_role author
author2 Schoenberg,Michael
Urban,Jaime
author2_role author
author
dc.contributor.author.fl_str_mv Costa,Jessé
Schoenberg,Michael
Urban,Jaime
dc.subject.por.fl_str_mv Ray theory
continuation method
anisotropy
topic Ray theory
continuation method
anisotropy
description Two-point raytracing problem is solved for events in a piecewise homogeneous and laterally varying 3D anisotropic media by continuation techniques. In conjunction with the shooting method the algorithm can be used for computation of qP, qS1, and qS2 events. The algorithm has the same performance and robustness as previous implementations of the continuation method for tracing rays in isotropic models. Routines based on our algorithm have several useful applications. First, an efficient forward problem solver for traveltime inversion of elastic parameters in the presence of anisotropy. Second, Newton-Raphson iterations during two-point raytracing produce wavefront attributes, slowness and wavefront curvature. These attributes allows the computation of geometrical spreading and second order approximations for traveltimes. Therefore it can be used to investigate the effects of anisotropy on CRS, in simple velocity models.
publishDate 2002
dc.date.none.fl_str_mv 2002-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-261X2002000300003
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-261X2002000300003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0102-261X2002000300003
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Geofísica
publisher.none.fl_str_mv Sociedade Brasileira de Geofísica
dc.source.none.fl_str_mv Revista Brasileira de Geofísica v.20 n.3 2002
reponame:Revista Brasileira de Geofísica (Online)
instname:Sociedade Brasileira de Geofísica (SBG)
instacron:SBG
instname_str Sociedade Brasileira de Geofísica (SBG)
instacron_str SBG
institution SBG
reponame_str Revista Brasileira de Geofísica (Online)
collection Revista Brasileira de Geofísica (Online)
repository.name.fl_str_mv Revista Brasileira de Geofísica (Online) - Sociedade Brasileira de Geofísica (SBG)
repository.mail.fl_str_mv ||sbgf@sbgf.org.br
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