Finite frequency traveltime sensitivity kernels for acoustic anisotropic media: Angle dependent bananas
dc.contributor.author | Djebbi, Ramzi | |
dc.contributor.author | Alkhalifah, Tariq Ali | |
dc.date.accessioned | 2015-10-28T13:42:11Z | |
dc.date.available | 2015-10-28T13:42:11Z | |
dc.date.issued | 2013-08-19 | |
dc.identifier.doi | 10.1190/segam2013-0879.1 | |
dc.identifier.uri | http://hdl.handle.net/10754/581348 | |
dc.description.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. | |
dc.publisher | Society of Exploration Geophysicists | |
dc.relation.url | http://library.seg.org/doi/abs/10.1190/segam2013-0879.1 | |
dc.title | Finite frequency traveltime sensitivity kernels for acoustic anisotropic media: Angle dependent bananas | |
dc.type | Conference Paper | |
dc.contributor.department | Earth Science and Engineering Program | |
dc.contributor.department | Physical Science and Engineering (PSE) Division | |
dc.contributor.department | Seismic Wave Analysis Group | |
dc.identifier.journal | SEG Technical Program Expanded Abstracts 2013 | |
dc.conference.date | 22-27 September 2013 | |
dc.conference.name | SEG International Exposition and 83rd Annual Meeting | |
dc.conference.location | Houston, Texas | USA | |
dc.eprint.version | Publisher's Version/PDF | |
kaust.person | Djebbi, Ramzi | |
kaust.person | Alkhalifah, Tariq Ali | |
refterms.dateFOA | 2018-06-14T09:19:59Z | |
dc.date.published-online | 2013-08-19 | |
dc.date.published-print | 2013-09 |
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