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Performance Analysis of a High-Order Discontinuous Galerkin Method Application to the Reverse Time Migration

Published online by Cambridge University Press:  20 August 2015

Caroline Baldassari*
Affiliation:
INRIA Bordeaux Research Center, Project Team Magique3D, Avenue de l’université, 64013 Pau Cedex, FranceLMA, CNRS UMR 5142, Université de Pau, Avenue de l’université, 64013 Pau Cedex, France
Hélène Barucq*
Affiliation:
INRIA Bordeaux Research Center, Project Team Magique3D, Avenue de l’université, 64013 Pau Cedex, FranceLMA, CNRS UMR 5142, Université de Pau, Avenue de l’université, 64013 Pau Cedex, France
Henri Calandra*
Affiliation:
TOTAL, Avenue Larribau, 64000 Pau, France
Bertrand Denel*
Affiliation:
TOTAL, Avenue Larribau, 64000 Pau, France
Julien Diaz*
Affiliation:
INRIA Bordeaux Research Center, Project Team Magique3D, Avenue de l’université, 64013 Pau Cedex, FranceLMA, CNRS UMR 5142, Université de Pau, Avenue de l’université, 64013 Pau Cedex, France
*
Corresponding author.Email:caroline.baldassari@inria.fr
Email address:julien.diaz@inria.fr
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Abstract

This work pertains to numerical aspects of a finite element method based discontinuous functions. Our study focuses on the Interior Penalty Discontinuous Galerkin method (IPDGM) because of its high-level of flexibility for solving the full wave equation in heterogeneous media. We assess the performance of IPDGM through a comparison study with a spectral element method (SEM). We show that IPDGM is as accurate as SEM. In addition, we illustrate the efficiency of IPDGM when employed in a seismic imaging process by considering two-dimensional problems involving the Reverse Time Migration.

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Type
Research Article
Copyright
Copyright © Global Science Press Limited 2012

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