Print Email Facebook Twitter The effect of the longshore dimension on dune erosion Title The effect of the longshore dimension on dune erosion Author Van Thiel de Vries, J.S.M. Van Dongeren, A.R. McCall, R. Reniers, A. Faculty Civil Engineering and Geosciences Department Hydraulic Engineering Date 2011-06-30 Abstract The effect of the longshore dimension on dune erosion is examined numerically with a 2DH process based model XBeach. Exploratory simulations are presented to examine longshore effects due to directionally spread waves, longshore variation in topography and longshore variation in bathymetry. The simulations reveal that alongshore sediment exchange during a storm surge affects the cross-shore development of the foreshore and can locally increase or decrease storm impact on dunes substantially. This finding illustrates that dune erosion on natural coasts (which are never cylindrical or subject to longcrested waves) is an inherent 2D process for which 1D cross-shore models do not suffice without further assumptions. Subject dune erosionsurfbeatlongshore sediment transport To reference this document use: http://resolver.tudelft.nl/uuid:e4176e7c-94a8-4f37-8450-f520166262e8 Source 32nd International Conference on Coastal Engineering, ICCE 2010, June 30 – July 5 2010, Shanghai, China Part of collection Institutional Repository Document type conference paper Rights (c) 2011 The Author(s) Files PDF 278261.pdf 788.18 KB Close viewer /islandora/object/uuid:e4176e7c-94a8-4f37-8450-f520166262e8/datastream/OBJ/view