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dc.contributor.authorCastelle, Ben
dc.contributor.authorScott, Ten
dc.contributor.authorBrander, Ren
dc.contributor.authorMcCarroll, Jen
dc.contributor.authorRobinet, Aen
dc.contributor.authorTellier, Een
dc.contributor.authorde Korte, Een
dc.contributor.authorSimonnet, Ben
dc.contributor.authorSalmi, L-Ren
dc.date.accessioned2021-09-20T13:15:20Z
dc.date.available2021-09-20T13:15:20Z
dc.date.issued2019-10-09en
dc.identifier.issn1561-8633en
dc.identifier.urihttp://hdl.handle.net/10026.1/17879
dc.description.abstract

<jats:p>Abstract. The two primary causes of surf zone injuries (SZIs) worldwide, including fatal drowning and severe spinal injuries, are rip currents (rips) and shore-break waves. SZIs also result from surfing and bodyboarding activity. In this paper we address the primary environmental controls on SZIs along the high-energy meso–macro-tidal surf beach coast of southwestern France. A total of 2523 SZIs recorded by lifeguards over 186 sample days during the summers of 2007, 2009 and 2015 were combined with measured and/or hindcast weather, wave, tide, and beach morphology data. All SZIs occurred disproportionately on warm sunny days with low wind, likely because of increased beachgoer numbers and hazard exposure. Relationships were strongest for shore-break- and rip-related SZIs and weakest for surfing-related SZIs, the latter being also unaffected by tidal stage or range. Therefore, the analysis focused on bathers. More shore-break-related SZIs occur during shore-normal incident waves with average to below-average wave height (significant wave height, Hs = 0.75–1.5 m) and around higher water levels and large tide ranges when waves break on the steepest section of the beach. In contrast, more rip-related drownings occur near neap low tide, coinciding with maximised channel rip flow activity, under shore-normal incident waves with Hs &gt;1.25 m and mean wave periods longer than 5 s. Additional drowning incidents occurred at spring high tide, presumably due to small-scale swash rips. The composite wave and tide parameters proposed by Scott et al. (2014) are key controlling factors determining SZI occurrence, although the risk ranges are not necessarily transferable to all sites. Summer beach and surf zone morphology is interannually highly variable, which is critical to SZI patterns. The upper beach slope can vary from 0.06 to 0.18 between summers, resulting in low and high shore-break-related SZIs, respectively. Summers with coast-wide highly (weakly) developed rip channels also result in widespread (scarce) rip-related drowning incidents. With life risk defined in terms of the number of people exposed to life threatening hazards at a beach, the ability of morphodynamic models to simulate primary beach morphology characteristics a few weeks or months in advance is therefore of paramount importance for predicting the primary surf zone life risks along this coast. </jats:p>

en
dc.format.extent2183 - 2205en
dc.languageenen
dc.language.isoenen
dc.publisherEuropean Geosciences Unionen
dc.titleEnvironmental controls on surf zone injuries on high-energy beachesen
dc.typeJournal Article
plymouth.issue10en
plymouth.volume19en
plymouth.journalNatural Hazards and Earth System Sciencesen
dc.identifier.doi10.5194/nhess-19-2183-2019en
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dcterms.dateAccepted2019-08-29en
dc.rights.embargodate2021-09-21en
dc.identifier.eissn1684-9981en
dc.rights.embargoperiodNot knownen
rioxxterms.versionofrecord10.5194/nhess-19-2183-2019en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2019-10-09en
rioxxterms.typeJournal Article/Reviewen


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