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Apr 26, 2012
The Role of Longshore Currents in Intertidal Bar Mobility on a Macrotidal Beach under High Energy Wave Conditions
Authors: Mouncef Sedrati [email protected] and Edward J. Anthony [email protected]Author Affiliations
Publication: Coastal Dynamics 2005: State of the Practice
Abstract
The morpholgy and hydrodynamics of the macrotidal beach of Dune d'Amont, in northern France, characterised by intertidal bars, were surveyed during storm conditions. The absence of clear cross-shore bar migration in spite of the energetic context was due to weak cross-shore currents, although significant storm wave heights attained up to 1.5 m. However, tide-induced longshore flows considerably strengthened by wind forcing during the storms was responsible for the longshore migration pattern shown by the bar-trough systems. These longshore flows also account for the longshore variations in cross-shore profile volumes.
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© 2006 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Coastal Geomorphology and Shoreline Management Unit, EA 3599, Université du Littoral Côte d'Opale, MREI 2, 189a, Avenue Maurice Schumann, 59140 Dunkerque, France. E-mail: [email protected]
Coastal Geomorphology and Shoreline Management Unit, EA 3599, Université du Littoral Côte d'Opale, MREI 2, 189a, Avenue Maurice Schumann, 59140 Dunkerque, France. E-mail: [email protected]
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