Erosion and inundation model

The Local Erosion-Inundation consists of a computational chain that includes an hydro-morphodinamic model (X-Beach) and an inundation model (LISFLOOD-FP).

Description & Technical Information

Description

The chain of models is fed with the regional model outputs. The model X-BEACH (Roelvink et al., 2009) reproduces nearshore wave process (e.g. breaking, shoaling), the hydrodynamics related to near-shore wave transformation, as well as the associated morphodynamics. The X-beach output is used as input of the inundation model LISFLOOD-FP. This is a 2-D hydrodynamic model specifically designed to simulate inundation in areas with complex topography (Bates et al., 2005). The local flood-erosion model is applied to evaluate storm surge impact in the Pilot Sites. The model has a spatial resolution of 10 m and time step of 30’ like the regional storm surge model. The model chain provides erosion-accretion information, maximum flow velocity, maximum inundation depth and expected shoreline retreat rate. In a built-up area, the storm surge warning could be presented as the Safe Corridor Width (SCW) indicator.

Technical information

Hazard
References J.A. Roelvink, A. Reniers, A.R. van Dongeren, J.S.M. van Thiel de Vries, R. McCall, J. Lescinski., 2009. Modeling storm impacts on beaches, dunes and barrier islands Coast. Eng., 56, pp. 1133-1152
References (2) Paul D. Bates, Richard J. Dawson, Jim W. Hall, Matthew S. Horritt, Robert J. Nicholls, Jon Wicks, 2005. Mohamed Ahmed Ali Mohamed Hassan, Simplified two-dimensional numerical modelling of coastal flooding and example applications, Coast. Eng., 56(9), 793-810.
Developer CFR
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