DEVELOPMENT AND FIELD VALIDATION OF A 2DH CURVILINEAR STORM IMPACT MODEL

Dano Roelvink, Guus Stelling, Bas Hoonhout, Johan Risandi, Walter Jacobs, Davide Merli

Abstract


The formulations of the 2DH process-based, nearshore morphological model XBeach were extended to allow for curvilinear grids using a finite volume approach. The formulations were tested for schematic cases such as a circular island and a field validation study was carried out for the case of storm erosion during a construction phase of the soft sea defense of the Maasvlakte-2 extension of Rotterdam port. It was found that the 2D curvilinear version performs significantly better than individual 1D runs. The overall skill of the 2D model for this case can be classified as 'reasonable' while the prediction of the erosion can be classified as 'good'.

Keywords


storm impact; morphological model; XBeach; Maasvlakte-2; dune erosion; overwashing

References


R.T. McCall, J.S.M. Van Thiel de Vries, N.G. Plant, A.R. Van Dongeren, J.A. Roelvink, D.M. Thompson, A.J.H.M. Reniers, 2010. Two-dimensional time dependent hurricane overwash and erosion modeling at Santa Rosa Island . Coastal Engineering, Volume 57, Issue 7, July 2010, Pages 668-683.

http://dx.doi.org/10.1016/j.coastaleng.2010.02.006

J. Risandi, 2011. Study of Morphological Response of Maasvlakte 2 Soft Sea Defense using 2D XBeach, MSc Thesis, UNESCO-IHE, the Netherlands, April 2011.

Roelvink, Dano, Ad Reniers, Ap van Dongeren, Jaap van Thiel de Vries, Robert McCall, Jamie Lescinski. Modelling storm impacts on beaches, dunes and barrier islands. Coastal Engineering, Volume 56, Issues 11-12, November-December 2009, Pages 1133-1152.


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