Accurate simulations of seismic wave propagation in complex geological structures with great and rapid variations of topography are of primary interest for environmental and industrial applications. Unfortunately, difficulties arise for such complex environments, due essentially to the existence of shadow zones, head waves, diffractions and edge effects. 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. In this presentation we will present some preliminary results provided by both laboratory experiments conducted in a water-tank and numerical simulations of wave propagation obtained by two methods: the Tip-Wave Superposition Method and the Spectral Element Method.


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