Parametrized shooting of seismic rays in a spherical earth with discontinuities

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Discontinuities, Earth Models, Ray Tracing

Scientific paper

The parametrized shooting method is extended to 3-D seismic ray tracing in a spherical earth with discontinuities. A shooting vector at a seismic source is iteratively updated by using numerical integrals of several variables and Snell's Law in spherical coordinates is matched at the discontinuities. The computational accuracy and efficiency of this method are demonstrated by tracing rays for various velocity models and comparing results with analytical solutions and results from the bending, pseudo-bending and finite difference methods. The parametrized shooting is very efficient in an earth with a smooth velocity field and it is reduced by the introduction of discontinuities or rapid velocity changes. Numerical instability can occur with the parametrized shooting in a velocity gradient greater than 10 per cent, but the degree of this instability is not as serious as in the bending method.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Parametrized shooting of seismic rays in a spherical earth with discontinuities does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Parametrized shooting of seismic rays in a spherical earth with discontinuities, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Parametrized shooting of seismic rays in a spherical earth with discontinuities will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-789296

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.