Sandy beaches can survive sea-level rise

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Andrew Cooper , Gerd Masselink, Giovanni Coco , Andrew Short, Bruno Castelle , Kerrylee Rogers, Edward Anthony, Andrew Green, Joseph Kelley, Orrin Pilkey


It has been asserted by Vousdoukas et al., that climate change, in particular global sea-level rise (SLR), poses a threat to the existence of sandy beaches. The authors used global data bases of sandy beaches, bathymetry, wave conditions and SLR to drive a simple model based on the ‘Bruun Rule’ to quantitatively evaluate shoreline retreat. To this modelled retreat, they add a background ambient trend in shoreline dynamics and the modelled response of an extreme storm, that together contribute c. 20% of the shoreline retreat. When retreat was more than 100 m by 2100, they declared those beaches extinct. This is an incorrect and potentially damaging finding that must be repudiated along with the associated implications.



Earth Sciences, Geomorphology, Physical Sciences and Mathematics


Sea-level rise, beaches, coastlines


Published: 2020-03-19 07:57


GNU Lesser General Public License (LGPL) 2.1

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