Sandy beaches can survive sea-level rise

This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: http://doi.org/10.1038/s41558-020-00934-2. This is version 1 of this Preprint.

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Authors

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

Abstract

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.

DOI

https://doi.org/10.31223/osf.io/4md6e

Subjects

Earth Sciences, Geomorphology, Physical Sciences and Mathematics

Keywords

Sea-level rise, beaches, coastlines

Dates

Published: 2020-03-18 16:57

License

GNU Lesser General Public License (LGPL) 2.1

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