AbstractWave impact has been identified as the main source of failure for coastal breakwater. While wave transformation over low to mild sloping beaches have been widely studied, shoaling, breaking, reflection and dissipation over steep and very rough slopes are much less documented, especially in situ. The Artha breakwater, south-west of France, is a composite breakwater sitting on top of a complex, steep bathymetry. The results of in-situ measurement of wave transformation in the block armor of this structure are presented here.
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