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dc.contributor.authorLiu, Qiancheng
dc.contributor.authorPeter, Daniel
dc.contributor.authorLu, Yongming
dc.date.accessioned2017-11-29T11:13:53Z
dc.date.available2017-11-29T11:13:53Z
dc.date.issued2017-08-17
dc.identifier.citationLiu Q, Peter D, Lu Y (2017) A fast pointwise strategy for anisotropic wave-mode separation in TI media. SEG Technical Program Expanded Abstracts 2017. Available: http://dx.doi.org/10.1190/segam2017-17795796.1.
dc.identifier.doi10.1190/segam2017-17795796.1
dc.identifier.urihttp://hdl.handle.net/10754/626220
dc.description.abstractThe multi-component wavefield contains both compressional and shear waves. Separating wave-modes has many applications in seismic workflows. Conventionally, anisotropic wave-mode separation is implemented by either directly filtering in the wavenumber domain or nonstationary filtering in the space domain, which are computationally expensive. These methods could be categorized into the pseudo-derivative family and only work well within Finite Difference (FD) methods. In this paper, we establish a relationship between group-velocity direction and polarity direction and propose a method, which could go beyond modeling by FD. In particular, we are interested in performing wave-mode separation in a Spectral Element Method (SEM), which is widely used for seismic wave propagation on various scales. The separation is implemented pointwise, independent of its neighbor points, suitable for running in parallel. Moreover, no correction for amplitude and phase changes caused by the derivative operator is required. We have verified our scheme using numerical examples.
dc.description.sponsorshipThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). Numerical computations used resources of the IT Division and Extreme Computing Research Center (ECRC) at KAUST.
dc.publisherSociety of Exploration Geophysicists
dc.relation.urlhttps://library.seg.org/doi/10.1190/segam2017-17795796.1
dc.rightsArchived with thanks to SEG Technical Program Expanded Abstracts 2017
dc.subjectseparation
dc.subject2D
dc.subjectanisotropy
dc.titleA fast pointwise strategy for anisotropic wave-mode separation in TI media
dc.typeConference Paper
dc.contributor.departmentEarth Science and Engineering Program
dc.contributor.departmentExtreme Computing Research Center
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalSEG Technical Program Expanded Abstracts 2017
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionInstitute of Geology and Geophysics, Chinese Academy of Sciences
kaust.personLiu, Qiancheng
kaust.personPeter, Daniel
refterms.dateFOA2018-06-14T02:21:28Z
dc.date.published-online2017-08-17
dc.date.published-print2017-08-17


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