Seismic diffraction separation in the near surface: Detection of high-contrast voids in unconsolidated soils

P Bakhtiari Rad, CJ Hickey - Geophysics, 2021 - library.seg.org
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 …

Using common-reflection-surface stack for enhanced near-surface seismic reflection imaging: Examples from consolidated and unconsolidated environments

P Bakhtiari Rad, CJ Hickey - Geophysics, 2022 - library.seg.org
The small geophone spacing and spread lengths commonly used to investigate ultrashallow
layers in conjunction with the limited bandwidth of surface impact sources do not allow for …

Imaging of near-surface seismic reflections using kinematic wavefront attributes

PB Rad, CJ Hickey - Symposium on the Application of Geophysics to …, 2021 - library.seg.org
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 …