Wave equation dispersion inversion of surface waves recorded on irregular topography

J Li, FC Lin, A Allam, Y Ben-Zion, Z Liu… - Geophysical Journal …, 2019 - academic.oup.com
Significant topographic variations can strongly influence the amplitudes and phases of
propagating surface waves. Such effects should be taken into account, otherwise the S …

The exponentiated phase measurement, and objective-function hybridization for adjoint waveform tomography

YO Yuan, E Bozdağ, C Ciardelli, F Gao… - Geophysical Journal …, 2020 - academic.oup.com
Seismic tomography has arrived at the threshold of the era of big data. However, how to
extract information optimally from every available time-series remains a challenge; one that …

Land seismic multiparameter full waveform inversion in elastic VTI media by simultaneously interpreting body waves and surface waves with an optimal transport …

W He, R Brossier, L Métivier… - Geophysical Journal …, 2019 - academic.oup.com
Land seismic multiparameter full waveform inversion in anisotropic media is challenging
because of high medium contrasts and surface waves. With a data-residual least-squares …

Full waveform inversion using envelope-based global correlation norm

JW Oh, T Alkhalifah - Geophysical Journal International, 2018 - academic.oup.com
To increase the feasibility of full waveform inversion on real data, we suggest a new
objective function, which is defined as the global correlation of the envelopes of modelled …

3D wave-equation dispersion inversion of surface waves recorded on irregular topography

Z Liu, J Li, SM Hanafy, K Lu, G Schuster - Geophysics, 2020 - pubs.geoscienceworld.org
Irregular topography can cause strong scattering and defocusing of propagating surface
waves, so it is important to account for such effects when inverting surface waves for shallow …

Elastic vertically transversely isotropic full-waveform inversion: From synthetic to field data

W He, Y Li, L Liu - Geophysics, 2023 - library.seg.org
Representing the earth as an elastic medium leads to a more accurate approximation of the
seismic response than can be obtained by assuming an acoustic medium. However, this …

Topography effect on seismic waveform tomography: a quantitative study

K Zheng, Y Wang, L Zhao - Geophysical Journal International, 2024 - academic.oup.com
In seismic tomography practices the Earth's surface is sometimes assumed to be either
spherical or flat for convenience in forward modelling calculations. The effect of irregular …

3D elastic FWI for land seismic data: A graph space OT approach

W He, R Brossier, L Métivier - SEG International Exposition and …, 2019 - onepetro.org
Integrating surface wave information is challenging for land seismic full waveform inversion
(FWI). Cycle-skipping of surface waves can easily occur due to their highly dispersive and …

Evaluation of Pinnacle Bedrock Topography Using Surface Waves: A Numerical Simulation of Full Waveform Tomography

S Mahvelati, A Kordjazi, JT Coe - IFCEE 2021 - ascelibrary.org
Pinnacle bedrock topography presents major challenges when evaluating the design length
of deep foundation systems. Such topography is formed in rocks prone to dissolution by …

NUMERICAL INVESTIGATION OF UNKNOWN FOUNDATION GEOMETRY USING FULL WAVEFORM INVERSION OF SURFACE WAVES

S Mahvelati, JT Coe - Symposium on the Application of Geophysics …, 2018 - library.seg.org
As interest in foundation reuse increases, there has been renewed emphasis on
methodologies to characterize existing foundations for determination of unknown geometry …