Popis: |
Daily video surveys of a 1.0 km stretch of an open sandy beach at Biscarrosse are presented to analysis seasonal and short-term dynamic of shoreline position, defined as the mean high tide position associated to neap tide conditions, together with inner bar dynamic. While the seasonal pattern is observed, short-term dynamic associated to storm and post-storm events is more complex. This complexity can be partly explained by the kind of interactions observed between the beach face and the innner bar that can either dissipate the wave energy or not, or act as a sediment supply for rapid beach |