3D Finite-Difference Frequency-Domain Modeling of Acoustic Wave Propagation Using a Massively Parallel Direct Solver

Creators: Ben Hadj Ali, H.; Operto, S.; Virieux, J.; Amestoy, P.; L'Excellent, J.-Y.; Giraud, L.

Others:: Géoazur (GEOAZUR 6526) ; Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (1965 - 2019) (UNS) ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS); SEISCOPE

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C027 3D Finite-Difference Frequency-Domain Modeling of Acoustic Wave Propagation Using a Massively Parallel Direct Solver H. Ben Hadj Ali* (Géosciences Azur - CNRS) S. Operto (Geosciences Azur - CNRS) J. Virieux (Géosciences Azur - UNSA) P. Amestoy (ENSEEIHT-IRIT) J.Y. L'Excellent (ENS Lyon-INRIA) & L. Giraud (ENSEEIHT-IRIT) SUMMARY We present a finite-difference frequency-domain method (FDFD) for 3D modeling of visco-acoustic wave propagation. We propose this method as a tool for frequency-domain full-waveform inversion (FWI) of global offset data. Within such context only few frequencies need to be modeled for multiple shot positions. Frequencydomain modeling reduces to resolution of a large sparse ...

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3D Finite-Difference Frequency-Domain Modeling of Acoustic Wave Propagation Using a Massively Parallel Direct Solver

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