Multi-scale variability of storm Ophelia 2017: The importance of synchronised environmental variables in coastal impact

The Science of the Total Environment
Emilia Guisado-Pintado, Derek W T Jackson

Abstract

Low frequency, high magnitude storm events can dramatically alter coastlines, helping to relocate large volumes of sediments and changing the configuration of landforms. Increases in the number of intense cyclones occurring in the Northern Hemisphere since the 1970s is evident with more northward tracking patterns developing. This brings added potential risk to coastal environments and infrastructure in northwest Europe and therefore understanding how these high-energy storms impact sandy coasts in particular is important for future management. This study highlights the evolution of Storm (formally Hurricane) Ophelia in October 2017 as it passed up and along the western seaboard of Ireland. The largest ever recorded Hurricane to form in the eastern Atlantic, we describe, using a range of environmental measurements and wave modelling, its track and intensity over its duration whilst over Ireland. The impact on a stretch of sandy coast in NW Ireland during Storm Ophelia, when the winds were at their peak, is examined using terrestrial laser scanning surveys pre- and post-storm to describe local changes of intertidal and dune edge dynamics. During maximum wind conditions (>35 knots) waves no >2m were recorded with an oblique to pa...Continue Reading

Citations

May 18, 2019·Risk Analysis : an Official Publication of the Society for Risk Analysis·Daniel EisenbergDavid L Alderson
May 18, 2021·The Science of the Total Environment·Per-Erik Mellander, Phil Jordan

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