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Revista EIA
versión impresa ISSN 1794-1237versión On-line ISSN 2463-0950
Resumen
ZULUAGA-HERRERA, CRISTHIAN D. y MUNOZ-CUARTAS, JUAN CARLOS. Simultaneous Refractions And Reflections In Velocity Estimation Via Ray-Based Tomography. Rev.EIA.Esc.Ing.Antioq [online]. 2020, vol.17, n.33, pp.74-88. ISSN 1794-1237. https://doi.org/10.24050/reia.v17i33.1321.
This paper presents a ray tracing strategy with application to seismic tomography problems. The ray tracing is based on the shortest path method. The strategy allows to calculate trajectories of reflected and refracted rays simultaneously, generate rays with several sources and several receivers, choose points in interfaces of interest to generate reflections in said points, among others. Using this approach as a modeling strategy, a traveltime tomography was implemented using algebraic reconstruction techniques, to estimate wave propagation velocities in the subsoil. Different experiments were performed that show the behavior of the ray tracing in different scenarios with refractions and reflections, as well as the results of the use of the ray tracing technique in seismic tomography problems, obtaining positive results in the identification of structures in the subsoil model at a relatively low computational cost.
Palabras clave
:
Seismic ray tracing; Seismic tomography; Ray tracing; Algebraic reconstruction; Sparse