Show simple item record

dc.contributor.authorSilva, AP
dc.contributor.authorKlein, AHF
dc.contributor.authorFetter-Filho, AFH
dc.contributor.authorHein, CJ
dc.contributor.authorMéndez, FJ
dc.contributor.authorBroggio, MF
dc.contributor.authorDalinghaus, C
dc.date.accessioned2020-12-14T23:21:45Z
dc.date.available2020-12-14T23:21:45Z
dc.date.issued2020
dc.identifier.issn2045-2322
dc.identifier.doi10.1038/s41598-020-75265-5
dc.identifier.urihttp://hdl.handle.net/10072/400202
dc.description.abstractThrough alteration of wave-generating atmospheric systems, global climate changes play a fundamental role in regional wave climate. However, long-term wave-climate cycles and their associated forcing mechanisms remain poorly constrained, in part due to a relative dearth of highly resolved archives. Here we use the morphology of former shorelines preserved in beach-foredune ridges (BFR) within a protected embayment to reconstruct changes in predominant wave directions in the Subtropical South Atlantic during the last ~ 3000 years. These analyses reveal multi-centennial cycles of oscillation in predominant wave direction in accordance with stronger (weaker) South Atlantic mid- to high-latitudes mean sea-level pressure gradient and zonal westerly winds, favouring wave generation zones in higher (lower) latitudes and consequent southerly (easterly) wave components. We identify the Southern Annular Mode as the primary climate driver responsible for these changes. Long-term variations in interhemispheric surface temperature anomalies coexist with oscillations in wave direction, which indicates the influence of temperature-driven atmospheric teleconnections on wave-generation cycles. These results provide a novel geomorphic proxy for paleoenvironmental reconstructions and present new insights into the role of global multi-decadal to multi-centennial climate variability in controlling coastal-ocean wave climate.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherSpringer Science and Business Media LLC
dc.relation.ispartofissue1
dc.relation.ispartofjournalScientific Reports
dc.relation.ispartofvolume10
dc.subject.fieldofresearchPhysical oceanography
dc.subject.fieldofresearchcode370803
dc.titleClimate-induced variability in South Atlantic wave direction over the past three millennia
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationSilva, AP; Klein, AHF; Fetter-Filho, AFH; Hein, CJ; Méndez, FJ; Broggio, MF; Dalinghaus, C, Climate-induced variability in South Atlantic wave direction over the past three millennia, Scientific Reports, 2020, 10 (1)
dcterms.dateAccepted2020-09-30
dcterms.licensehttp://creativecommons.org/licenses/by/4.0/
dc.date.updated2020-12-13T23:59:07Z
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© The Author(s) 2020. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.
gro.hasfulltextFull Text
gro.griffith.authorDa Silva, Ana


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record