Seismic diffractions carry the signature of near-surface high-contrast anomalies and need to
be extracted from the data to complement the reflection processing and other geophysical …

Water column processing has gained attention in recent years since a seismic model of a
water column could assist marine data processors to correctly image the sub-seafloor …

Near-surface seismic data often contain high levels of coherent and non-coherent noise,
making seismic imaging a challenging task. Furthermore, the targets of interest are usually …

Shallow reflection data processing is a challenging task mainly because of the high level of
coherent/non-coherent noise in the data. Non-reflective coherent events are not easy to …

Near-surface voids, tunnels or high-contrast anomalies, if properly excited can produce
scattering energy coming to the surface in the form of resonant emission. Several …

We present the results of applying a diffraction-based wavefront tomography scheme to a
shallow data for velocity model building. The tomographic scheme is based on wavefront …

Near-surface seismic data often show high levels of noise that if not filtered, affect imaging
results. In this work we compare three stacking techniques for near-surface reflection …

Seismic diffractions are direct indicators of small-scale heterogeneities, such as faults, pinch-
outs, thin lenses, voids, karsts or any sub-wavelength high-contrast anomaly. Diffraction …