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- W2118081630 abstract "Two second-order wave equations for acoustic vertical transversely isotropic (VTI) media are transformed to six first-order coupled partial differential equations for a more straighforward numerical implementation of the derivatives. The resulting first-order equations have a more natural form for discretization by any finite-difference, pseudospectral, or finite-element method. I discretized the new equations by high-order finite differences and used synthetic seismograms and snapshots for anisotropic and isotropic cases. The relative merits of placing the source deep and close to a free surface are assessed, illustrating advantages of exciting the source inside or outside of a near-surface, thin, isotropic layer. Results show that traveltimes from deep seismic reflectors can remain virtually unaffected when near-surface isotropic layers are included in acoustic VTI media." @default.
- W2118081630 created "2016-06-24" @default.
- W2118081630 creator A5059497090 @default.
- W2118081630 date "2009-09-01" @default.
- W2118081630 modified "2023-10-17" @default.
- W2118081630 title "Acoustic VTI modeling using high-order finite differences" @default.
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- W2118081630 doi "https://doi.org/10.1190/1.3157242" @default.
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