High-resolution characterization of near-surface structures by surface-wave inversions: from dispersion curve to full waveform
Surface waves are widely used in near-surface geophysics and provide a noninvasive way
to determine near-surface structures. By extracting and inverting dispersion curves to obtain …
to determine near-surface structures. By extracting and inverting dispersion curves to obtain …
Individual and joint inversions of shallow-seismic rayleigh and love waves: full-waveform inversion versus random-objective waveform inversion
Shallow-seismic full-waveform inversion (FWI) provides an effective way for the accurate
reconstruction of near-surface models. The common 2D shallow-seismic FWI inverts either …
reconstruction of near-surface models. The common 2D shallow-seismic FWI inverts either …
Detection of delamination and rebar debonding in concrete structures with ultrasonic SH-waveform tomography
The detection of delamination and rebar debonding is among the most frequently
encountered issues for inspecting concrete for quality control and assurance. This paper …
encountered issues for inspecting concrete for quality control and assurance. This paper …
Comparison of time-domain SH waveform inversion strategies based on sequential low and bandpass filtered data for improved resolution in near-surface prospecting
The full waveform inversion (FWI) of strongly dispersive Love wave data is a challenging
task. Amplitude, phase and dispersion information not only depends on the density and …
task. Amplitude, phase and dispersion information not only depends on the density and …
Using convolutional neural networks to develop starting models for near-surface 2-D full waveform inversion
Non-invasive subsurface imaging using full waveform inversion (FWI) has the potential to
fundamentally change near-surface (< 30 m) site characterization by enabling the recovery …
fundamentally change near-surface (< 30 m) site characterization by enabling the recovery …
Cavity detection by SH-wave full-waveform inversion—A reflection-focused approach
The detection of cavities with geophysical methods is a challenging task for which a general
approach has not yet been found. We have found that viscoelastic SH full-waveform …
approach has not yet been found. We have found that viscoelastic SH full-waveform …
Wave-equation Rayleigh-wave dispersion inversion using fundamental and higher modes
ZD Zhang, T Alkhalifah - Geophysics, 2019 - pubs.geoscienceworld.org
Recorded surface waves often provide reasonable estimates of the S-wave velocity in the
near surface. However, existing algorithms are mainly based on the 1D layered-model …
near surface. However, existing algorithms are mainly based on the 1D layered-model …
Time-domain full-waveform inversion of Rayleigh and Love waves in presence of free-surface topography
Correct estimation of near-surface seismic-wave velocity when encountering lateral
heterogeneity and free surface topography is one of the challenges to current shallow …
heterogeneity and free surface topography is one of the challenges to current shallow …
Scattering radiation pattern atlas: What anisotropic elastic properties can body waves resolve?
V Kazei, T Alkhalifah - Journal of Geophysical Research: Solid …, 2019 - Wiley Online Library
Full‐waveform inversion (FWI) optimizes the subsurface properties of geophysical Earth
models in such a way that the modeled data, based on these subsurface properties, match …
models in such a way that the modeled data, based on these subsurface properties, match …
Individual and joint 2-D elastic full-waveform inversion of Rayleigh and Love waves
F Wittkamp, N Athanasopoulos… - Geophysical Journal …, 2019 - academic.oup.com
Full-waveform inversion (FWI) of surface waves can provide a valuable contribution to near-
surface investigations, since they are mainly sensitive to the S-wave velocity and hold a high …
surface investigations, since they are mainly sensitive to the S-wave velocity and hold a high …