All modelling possibilities (e.g. storm conditions for different beaches) will be previously run and stored into the trained BN. This will enable a fast (immediate) evaluation of any storm condition, as well as, will help in identifying which storms will result in consequences for coastal receptors. It also turns possible to improve the impact forecast as a function of changes on the larger-scale meteorological models as the storms approach. The risk will be accessed by integrating the modelled hazard with the exposure (e.g., occupation, networks, facilities and business).

By including the location of the exposed element at the BN, the potential direct consequences for each storm will be determined. In order to integrate different beach morphologies/conditions, representative beach states (e.g., average, summer, poststorm) will be defined for each case study area and models run for all conditions. Potential climate change impacts will complementary be assessed by including sea-level and storminess changes at the modelled conditions.

A semi-quantitative scale of potential impacts will be developed and used to advice coastal managers, civil protection and population in general about the potential damages and risk associated to each storm condition. Since all storm conditions will be run as ex-ante, the obtained results will be provided to coastal managers and authorities to alert them of the potential consequences and help to put in practice the best possible management options.

The EWS will be tested and implemented at 3 case study sites from the south (Quarteira, Praia de Faro) and west (Caparica) coasts of Portugal, integrating natural and heavily protected coasts, recognized as coastal risk hotspots.

These have contrasting wave regimes and exposure to storm conditions. Moreover, the case studies show different morphodynamic behaviour, integrating distinct beach responses to the storm action. The models and the EWS will be calibrated and validated against recent storms that caused erosion and/or flooding at the selected case studies.

A wide dissemination of the developed system will be performed, at scientific level (e.g. conferences, papers), at the local, regional and national end-users level (e.g. civil protection, environment agency, councils, etc) and also for the general public.