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 anisotropic media is challenging because of high medium contrasts and surface waves. With a data-residual least-squares …
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 …
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 …
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 …
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 …
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 …
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 …
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 …