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1365-2478.13026.pdf
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Accepted Article
Embargo End Date:
2021-08-22
Type
ArticleKAUST Department
Earth Science and Engineering ProgramPhysical Science and Engineering (PSE) Division
Seismic Wave Analysis Group
Date
2020-09-09Online Publication Date
2020-09-09Print Publication Date
2020-11Embargo End Date
2021-08-22Submitted Date
2020-04-13Permanent link to this record
http://hdl.handle.net/10754/664964
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Show full item recordAbstract
Pure mode wave propagation is important for applications ranging from imaging to avoiding parameter tradeoff in waveform inversion. Although seismic anisotropy is an elastic phenomenon, pseudo-acoustic approximations are routinely used to avoid the high computational cost and difficulty in decoupling wave modes to obtain interpretable seismic images. However, such approximations may result in inaccuracies in characterizing anisotropic wave propagation. We propose new pure mode equations for P- and S-waves resulting in an artifact-free solution in transversely isotropic medium with a vertical symmetry axis. Our approximations are more accurate than other known approximations as they are not based on weak anisotropy assumptions. Therefore, the S-wave approximation can reproduce the group velocity triplications in strongly anisotropic media. The proposed approximations can be used for accurate modelling and imaging of pure P- and S-waves in transversely isotropic media.Citation
Stovas, A., Alkhalifah, T., & Waheed, U. bin. (2020). Pure P and S wave equations in transversely isotropic media. Geophysical Prospecting. doi:10.1111/1365-2478.13026Publisher
WileyJournal
Geophysical ProspectingAdditional Links
https://onlinelibrary.wiley.com/doi/abs/10.1111/1365-2478.13026ae974a485f413a2113503eed53cd6c53
10.1111/1365-2478.13026