seismic velocity

seismic velocity

[′sīz·mik və′läs·əd·ē]
(geophysics)
The rate of propagation of an elastic wave, usually measured in kilometers per second.
References in periodicals archive ?
Carnarvon secured the Buffalo project in 2016 with the objective of running modern seismic technologies (called Full Waveform Inversion or FWI) to determine whether seismic velocity issues in the past could be solved with this new technology.
A backprojection method is a powerful tool for locating the source of microseisms when travel time can be inferred accurately with a seismic velocity model.
Elasticity modulus is generally determined on the basis of laboratory tests, in situ measurements or through analysis of the seismic velocity of the medium (dynamic modulus).
According to the existing well data, the average seismic velocity to the top of the Silurian is 2500 m/s, therefore the amplitude of the structures in the depth scale is not higher than 30-40 m.
Based on changing seismic velocity some layers physically can be distinguished.
Using the seismic velocity field derived from FWI to process the seismic data gives us a coherent picture of the structure below the model.
Excellent migration pathways are observed on the seismic data and seismic velocity reductions are associated with the prospects, indicating a reduction in density from the surrounding sediments.
Researchers have used ambient noise to image Earth's interior and to monitor changes in seismic velocity near active volcanoes.
The travel times of seismic rays are affected not only by the surface ellipticity bulges at the end of rays but also by the ellipticity of each internal surface of constant seismic velocity encountered by the ray.
Crustal structure, composition, seismic velocity and reflectivity define many first-order characteristics of the orogenic crust.
It is essential that the time of arrival of seismic wavefronts be known to assist in the study of subsurface seismic velocity structure.
These reflections usually arise from relatively abrupt changes in seismic velocity and/or density.