THIS COMMUNICATION IS CANCELLED (PAPER IS AVAILABLE). Laboratory benchmarks vs. Synthetic modeling of seismic wave propagation in complex environments (BENCHIE Project)

Abstract : Accurate simulations of seismic wave propagation in complex geological structures with great and rapid variations of topography are of primary interest for environmental & industrial applications. Unfortunately, difficulties arise for such complex environments, due essentially to the existence of shadow zones, head waves, diffractions & edge effects. Usually, methods and codes are tested against " validated " ones, but one might wonder which method/code ultimately approaches the " real " solution. An original approach for seismics is to compare synthetic seismic data to controlled laboratory data for a well-described configuration, in order to analyze the respective limitations of each method/code. This is one of the objectives of the BENCHIE project. In this presentation we will present some preliminary results provided by both laboratory experiments conducted in a tank and numerical simulations of wave propagation. The laboratory data have been obtained by zero-offset acquisitions at different ultrasonic frequencies on the Marseille model which is made up of anticlines, fault and truncated pyramid. The numerical results have been obtained by two methods: the Spectral-Element Method and the Tip-Wave Superposition Method.
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Communication dans un congrès
Société Française d'Acoustique. Acoustics 2012, Apr 2012, Nantes, France. 2012
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Nathalie Favretto-Cristini, Paul Cristini, Dimitri Komatitsch, Bjorn Ursin, Anastasiya Tantsereva, et al.. THIS COMMUNICATION IS CANCELLED (PAPER IS AVAILABLE). Laboratory benchmarks vs. Synthetic modeling of seismic wave propagation in complex environments (BENCHIE Project). Société Française d'Acoustique. Acoustics 2012, Apr 2012, Nantes, France. 2012. 〈hal-00810726〉

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