A FIELD EXPERIMENT ON A NOURISHED BEACH

A.J. Fernandez, G. Gomez Pina, G. Cuena, J.L. Ramirez

Abstract


The performance of a beach nourishment at" Playa de Castilla" (Huelva, Spain) is evaluated by means of accurate beach profile surveys, visual breaking wave information, buoy-measured wave data and sediment samples. The shoreline recession at the nourished beach due to "profile equilibration" and "spreading out" losses is discussed. The modified equilibrium profile curve proposed by Larson (1991) is shown to accurately describe the profiles with a grain size varying across-shore. The "spreading out" losses measured at " Playa de Castilla" are found to be less than predicted by spreading out formulations. The utilization of borrowed material substantially coarser than the native material is suggested as an explanation.

Keywords


nourished beach; field experiment

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