Finite frequency traveltime sensitivity kernels for acoustic anisotropic media: Angle dependent bananas

Handle URI:
http://hdl.handle.net/10754/581348
Title:
Finite frequency traveltime sensitivity kernels for acoustic anisotropic media: Angle dependent bananas
Authors:
Djebbi, Ramzi ( 0000-0002-6624-2905 ) ; Alkhalifah, Tariq Ali ( 0000-0002-9363-9799 )
Abstract:
Anisotropy is an inherent character of the Earth subsurface. It should be considered for modeling and inversion. The acoustic VTI wave equation approximates the wave behavior in anisotropic media, and especially it's kinematic characteristics. To analyze which parts of the model would affect the traveltime for anisotropic traveltime inversion methods, especially for wave equation tomography (WET), we drive the sensitivity kernels for anisotropic media using the VTI acoustic wave equation. A Born scattering approximation is first derived using the Fourier domain acoustic wave equation as a function of perturbations in three anisotropy parameters. Using the instantaneous traveltime, which unwraps the phase, we compute the kernels. These kernels resemble those for isotropic media, with the η kernel directionally dependent. They also have a maximum sensitivity along the geometrical ray, which is more realistic compared to the cross-correlation based kernels. Focusing on diving waves, which is used more often, especially recently in waveform inversion, we show sensitivity kernels in anisotropic media for this case.
KAUST Department:
Earth Science and Engineering Program; Physical Sciences and Engineering (PSE) Division
Publisher:
Society of Exploration Geophysicists
Journal:
SEG Technical Program Expanded Abstracts 2013
Conference/Event name:
SEG International Exposition and 83rd Annual Meeting
Issue Date:
19-Aug-2013
DOI:
10.1190/segam2013-0879.1
Type:
Conference Paper
Additional Links:
http://library.seg.org/doi/abs/10.1190/segam2013-0879.1
Appears in Collections:
Conference Papers; Physical Sciences and Engineering (PSE) Division; Earth Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorDjebbi, Ramzien
dc.contributor.authorAlkhalifah, Tariq Alien
dc.date.accessioned2015-10-28T13:42:11Zen
dc.date.available2015-10-28T13:42:11Zen
dc.date.issued2013-08-19en
dc.identifier.doi10.1190/segam2013-0879.1en
dc.identifier.urihttp://hdl.handle.net/10754/581348en
dc.description.abstractAnisotropy is an inherent character of the Earth subsurface. It should be considered for modeling and inversion. The acoustic VTI wave equation approximates the wave behavior in anisotropic media, and especially it's kinematic characteristics. To analyze which parts of the model would affect the traveltime for anisotropic traveltime inversion methods, especially for wave equation tomography (WET), we drive the sensitivity kernels for anisotropic media using the VTI acoustic wave equation. A Born scattering approximation is first derived using the Fourier domain acoustic wave equation as a function of perturbations in three anisotropy parameters. Using the instantaneous traveltime, which unwraps the phase, we compute the kernels. These kernels resemble those for isotropic media, with the η kernel directionally dependent. They also have a maximum sensitivity along the geometrical ray, which is more realistic compared to the cross-correlation based kernels. Focusing on diving waves, which is used more often, especially recently in waveform inversion, we show sensitivity kernels in anisotropic media for this case.en
dc.publisherSociety of Exploration Geophysicistsen
dc.relation.urlhttp://library.seg.org/doi/abs/10.1190/segam2013-0879.1en
dc.titleFinite frequency traveltime sensitivity kernels for acoustic anisotropic media: Angle dependent bananasen
dc.typeConference Paperen
dc.contributor.departmentEarth Science and Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalSEG Technical Program Expanded Abstracts 2013en
dc.conference.date22-27 September 2013en
dc.conference.nameSEG International Exposition and 83rd Annual Meetingen
dc.conference.locationHouston, Texas | USAen
dc.eprint.versionPublisher's Version/PDFen
kaust.authorDjebbi, Ramzien
kaust.authorAlkhalifah, Tariq Alien
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