Anisotropic full-waveform inversion with tilt-angle recovery

Herurisa Rusmanugroho, Ryan Modrak, Jeroen Tromp

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

By allowing spatial variations in the direction of the anisotropic fast axis, tilted transverse isotropy (TTI) helps to image complex or steeply dipping structures. Without a priori geologic constraints, however, recovery of all the anisotropic parameters can be nontrivial and nonunique.We adopt two methods for TTI inversion with tilt-angle recovery: one based on the familiar Voigt parameters, and another based on the so-called Chen and Tromp parameters known from regional and global seismology. These parameterizations arise naturally in seismic wave propagation and facilitate straightforward recovery of the tilt angle and anisotropic strength. In numerical experiments with vertical transversely isotropic starting models and TTI target models, we find that the Voigt as well as the Chen and Tromp parameters allow quick and robust recovery of steeply dipping anticlinal structures.

Original languageEnglish (US)
Pages (from-to)R135-R151
JournalGEOPHYSICS
Volume82
Issue number3
DOIs
StatePublished - May 1 2017

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transverse isotropy
tilt
Recovery
Seismology
Seismic waves
seismology
Parameterization
seismic wave
Wave propagation
wave propagation
parameterization
spatial variation
inversion
parameter
experiment
Experiments

All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology

Cite this

Rusmanugroho, Herurisa ; Modrak, Ryan ; Tromp, Jeroen. / Anisotropic full-waveform inversion with tilt-angle recovery. In: GEOPHYSICS. 2017 ; Vol. 82, No. 3. pp. R135-R151.
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Anisotropic full-waveform inversion with tilt-angle recovery. / Rusmanugroho, Herurisa; Modrak, Ryan; Tromp, Jeroen.

In: GEOPHYSICS, Vol. 82, No. 3, 01.05.2017, p. R135-R151.

Research output: Contribution to journalArticle

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