Abstract
Despite the clear societal importance of gravel beaches and barriers in protecting coastal areas from flooding, there are currently no reliable numerical models for predicting the morphological response of gravel beaches to storm events. This paper synthesises the results of a research project (NUPSIG) aimed at reducing this shortfall through an integrated research approach, involving field experimentation, comprehensive beach monitoring and innovative numerical modelling. In particular, the authors introduce a storm impact model for gravel beaches and barriers developed during the project (XBeach-G), present a brief validation of the model using field data and describe a user-friendly graphical user interface for the model. Finally, the model is applied in two case studies to demonstrate the use of the model in decision-making processes related to coastal flooding and beach maintenance.
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