Dune Erosion and Overwash in Large-Scale Flume Experiments (original) (raw)
2011, The Proceedings of the Coastal Sediments 2011
Large-scale physical model tests are ongoing at CIEM wave flume of the Polytechnic University of Catalonia. This paper presents some aspects of the study aimed to analyze the effect of wave storm events on dune erosion and overwash processes. Two different regimes of storm attack on the sandy beach/dune system are investigated: a collision regime with swash and run-up to the dune face and an overwash regime with wave run-up overtopping the dune crest (Sallenger et al. 2003). Eight run tests are performed with a combination of four irregular wave conditions and two different water depths. Detailed measurements in time and space of profile evolution, hydrodynamics, sediment concentration, overtopping rate and photogrammetric survey are carried out.
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