The 2013/14 winter highlighted the importance of clustering, when an average of one intense storm impacted the UK every two and a half days, resulting in aggregated impacts on the southwest coast. To better understand the frequency of clustering around the UK a collaborative research project is investigating this from several angles.
The first objective of the research was to explore coastal hazard clustering (storm surges, wave heights, and sea levels) around the UK. This was examined at interannual (between years) and intra-annual (within years) time scales, and utilised data from the UK’s coastal monitoring network, supplemented by longer, 40-year, modelled records.
To evaluate interannual patterns, exceedance counts were determined. For the intra-annual patterns, the time window was shortened and focused on days between exceedances. Both assessed spatial and temporal patterns, grouping results into coastal regions of similar characteristics.