Improvements to shallow seismic velocity tomography method

Abstract

The errors in seismic velocity recontructions in straight rays tomography method are unsatisfactory for the incompletely displayed seismic array around the panel. To improve resolution in these approaches, we propose a processing procedure consisting in re-applying the standard procedure after the obtained velocity model has changed. This modification is carried out based on the statistical analysis of the results obtained after the standard procedure was applyed for the first time. The procedure was tested on theoretical models and real data sets.