Shoreline responses to storm impacts: North Norfolk coast, southern North Sea

摘要

Recent phases of enhanced mid-latitude storminess (e.g. NW European winter of 2013 – 14) have led to a growingudawareness of the considerable impacts of storms on coastal landscapes and their communities. Using aerial photography,udbi-annual cross-shore profiles, detailed alongshore ground survey, and offshore/inshore wave buoy andudregional tide gauge datasets, this paper considers storm impacts on the barrier coastline of North Norfolk, UK.udFirstly, at Scolt Head Island, we show that the barrier dune crest has been progressively set back landwards sinceud2006 in three storm-related phases, with each shoreline translation being of the order of 5-8 m. However, a fourthudstorm produced no significant shoreline change, demonstrating that the threshold for morphological change is a function of the combined effects of still water level and wave height at the shore, the magnitude and duration ofudthese components, and the timing of their interaction. Secondly, we consider recovery times