Detailed Shoreline Combined Wave Climate and Water Level Conditions (ICWWS 2018 – Phase 3)

Abstract: This dataset shows the Detailed Shoreline Combined Wave Climate and Water Level Conditions for the Coastal Areas Potentially Vulnerable to Wave Overtopping (CAPOs) that were included in Phase 3 of the Irish Coastal Wave and Water Level Modelling Study (ICWWS 2018). Joint probability water level and wave climate condition tables have been produced for each Phase 3 CAPO for the present day scenario, Mid-Range Future Scenario (MRFS), High End Future Scenario (HEFS), High + End Future Scenario (H+EFS) and High++ End Future Scenario (H++EFS) which represent a 0.5m, 1.0m, 1.5m and 2.0m increase in sea level respectively. For each AEP from 50% to 0.1%, six combinations of wave climate and water level conditions were produced representing the complete joint probability range. Users of this data should refer to the Irish Coastal Wave and Water Level Modelling Study 2018 Phase 3 Technical Report that can be found on https://www.floodinfo.ie/publications/.

Purpose: Phase 3 of the Irish Coastal Wave and Water Level Modelling Study (ICWWS) 2018 provides an improvement and update to the previous ICWWS 2013 study wave climate and water level combinations of known Annual Exceedance Probability (AEP) based on the inclusion of additional offshore wave data, bathymetry and topographic data for Dundalk, Carlingford, Tralee, Shannon and Bunratty. The outputs of the Phase 3 studies may inform the evaluation of the risk associated with wave overtopping, any resulting coastal flooding (both now and in the future) and the detailed design of measures to mitigate and manage any such identified coastal flood risk.