Simultaneous inversion of seismic travel-times and amplitudes
Abstract
A technique is presented for using travel-time and amplitude information simultaneously to predict oceanic crustal velocity models. The method uses generalized inverse theory and geometric ray tracing techniques to find perturbations to a starting model which minimize the errors in the data estimates. Test models investigate the effects that various model parameters have on the inversion results. Results obtained using the travel-time and amplitude information simultaneously show that use of amplitude information increases the accuracy and resolution of the model estimates in the upper crustal region. Inversion of an actual seismic refraction line was performed and results were compared to previous synthetic seismogram interpretations of the same data.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- 1979
- Bibcode:
- 1979PhDT........31S
- Keywords:
-
- Amplitudes;
- Inversions;
- Seismic Waves;
- Time Measurement;
- Earth Crust;
- Ocean Models;
- Ray Tracing;
- Refraction;
- Seismology;
- Velocity Measurement;
- Geophysics