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Algorithm for Downward Seismic Wave Travel times Calculation Based on Godunov Method
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Saint Petersburg 2018, Apr 2018, Volume 2018, p.1 - 6
Abstract
Summary
An effective algorithm for downward wave travel times calculation on regular grids is suggested. It takes into account the possibility of head wave formation. In this case firstly the slowness field must be computed and only then the required travel times corresponding this slowness field. The suggested algorithm was tested on Marmousi2 model. For normal incidence plane wave the downward travel time field was calculated and compared with full wave field, computed by finite-difference method. The coincidence of travel time isochrones and full wave field fronts validate the correctness and the efficiency of the suggested algorithm.
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