Diffractions encode subwavelength information and superior illumination but are weak in
amplitude and strongly interfere with the more dominant reflected wavefield. Accordingly, the …

An elliptical anisotropic medium is defined as a simplified representation of anisotropy in
which the anelliptic parameters are set to zero in all symmetry planes. Despite the fact that …

The singularity directions are very important for wave propagation in anisotropic media since
they result in complications of the wavefront, amplitudes and polarization fields. Usually, the …

We have developed a new approximation for P-wave velocity that has the same functional
form for phase and group velocities. We call it the generalized velocity approximation (GVA) …

The parameterization of anisotropic models is very important when focusing on specific
signatures of seismic waves and reducing the parameter crosstalk involved in inverting …

In conventional normal moveout (NMO) correction, some parts of the recorded data at larger
offsets are discarded because of NMO distortions. Deviation from the true traveltime of …

An approximation is of practical interest whenever an exact approach is not available or is
too complicated to be used. Kinematic properties of wave propagation in orthorhombic …

We present a 3-D electrical resistivity modelling with long electrode sources using finite
element method on unstructured tetrahedral grids. The radius and resistivity of the electrode …

Wavefield properties such as traveltime and relative geometric spreading (traveltime
derivatives) are highly essential in seismic data processing and can be used in stacking …

Compensation for geometrical spreading along the ray path is important in AVO (amplitude
versus offset) analysis, since it contributes to the seismic amplitude preservation. The P …