What question did this study set out to answer?

To formulate and evaluate a frequency-domain seismic waveform inversion method using full-wave viscoacoustic modeling to overcome resolution limits in conventional imaging.

June 1, 1999Geophysics

Seismic waveform inversion in the frequency domain; Part 1, Theory and verification in a physical scale model

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Authors

RPR. G. PrattWestern University

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Implication

Methodological study demonstrates high-resolution structural recovery in a physical scale model, indicating that frequency-domain waveform inversion resolves features at subwavelength scales.

Key Points

To formulate and evaluate a frequency-domain seismic waveform inversion method using full-wave viscoacoustic modeling to overcome resolution limits in conventional imaging.
Formulated an iterative local descent inversion algorithm using viscoacoustic, frequency-domain finite-difference forward modeling and adjoint back-propagation.
Initialized the workflow with a low-resolution velocity model derived from standard traveltime tomography.
Applied 25 inversion iterations across five discrete sequential frequencies from low to high on tomographic seismic data recorded from a physical scale model.
Reconstructed target structures at subwavelength resolution, revealing structural details absent in standard ray-theoretic tomographic images.
Accurately predicted higher-order wavefield phenomena, including diffractions and multiple scattering, matching observed waveform arrivals.

Cite This Study

R. G. Pratt (1999) studied this question.

synapsesocial.com/papers/69df46dfd5404a0bea592ba7 https://doi.org/10.1190/1.1444597

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Implication

Methodological study demonstrates high-resolution structural recovery in a physical scale model, indicating that frequency-domain waveform inversion resolves features at subwavelength scales.

Seismic waveform inversion in the frequency domain; Part 1, Theory and verification in a physical scale model

Discussion

Member takes

Implication

Key Points

Cite This Study

Seismic waveform inversion in the frequency domain; Part 1, Theory and verification in a physical scale model

Discussion

Member takes

Implication

Key Points

Cite This Study

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