Climate-induced variability in South Atlantic wave direction over the past three millennia.

ABSTRACT: Through 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...

Descripción completa

Detalles Bibliográficos
Autores: Silva, A. P., Klein, A. H. F., Fetter-Filho, A. F. H., Hein, C. J., Méndez Incera, Fernando Javier|||0000-0002-5005-1100, Broggio, M. F., Dalinghaus, C.
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/20766
Acceso en línea:http://hdl.handle.net/10902/20766
Access Level:acceso abierto
Palabra clave:Ocean sciences
Palaeoceanography
Palaeoclimate
Physical oceanography
id ES_2d53d33b0bc6f7f6a04df97a8b632237
oai_identifier_str oai:repositorio.unican.es:10902/20766
network_acronym_str ES
network_name_str España
repository_id_str
spelling Climate-induced variability in South Atlantic wave direction over the past three millennia.Silva, A. P.Klein, A. H. F.Fetter-Filho, A. F. H.Hein, C. J.Méndez Incera, Fernando Javier|||0000-0002-5005-1100Broggio, M. F.Dalinghaus, C.Ocean sciencesPalaeoceanographyPalaeoclimatePhysical oceanographyABSTRACT: Through 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.A.P.S. and A.H.F.K. acknowledge the Brazilian Ministry of Environment for funding through the SMC-Brazil project. A.H.F.K. acknowledges the Rede Clima, INCT MarCOI “Oceanografia Integrada e Usos Multiplos da Plataforma Continental e Oceano Adjacente—Centro de Oceanografia Integrada (COI)”, CNPQ (PQ2- CNPQ 301963/2015-0, PQ1D CNPQ 301597/2018-9, CNPQ 441545/2017-3) and, CAPES Brazil-Finance Code 001 and Capes/PROEX 88881.146046/2017-01 for financial support. F.J.M. acknowledges the funding from the Spanish Ministry of Science and Innovation through the project PID2019-107053RB-I00. A.P.S. acknowledges the CESM1(CAM5) Last Millennium Ensemble Community Project and supercomputing resources provided by NSF/CISL/Yellowstone. C.J.H. acknowledges that this paper is Contribution 3957 of the Virginia Institute of Marine Science, William & Mary.Nature Publishing GroupUniversidad de Cantabria20202020-01-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttp://hdl.handle.net/10902/20766Scientific Reports 10, Article number: 18553 (2020)reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/207662026-06-02T12:39:31Z
dc.title.none.fl_str_mv Climate-induced variability in South Atlantic wave direction over the past three millennia.
title Climate-induced variability in South Atlantic wave direction over the past three millennia.
spellingShingle Climate-induced variability in South Atlantic wave direction over the past three millennia.
Silva, A. P.
Ocean sciences
Palaeoceanography
Palaeoclimate
Physical oceanography
title_short Climate-induced variability in South Atlantic wave direction over the past three millennia.
title_full Climate-induced variability in South Atlantic wave direction over the past three millennia.
title_fullStr Climate-induced variability in South Atlantic wave direction over the past three millennia.
title_full_unstemmed Climate-induced variability in South Atlantic wave direction over the past three millennia.
title_sort Climate-induced variability in South Atlantic wave direction over the past three millennia.
dc.creator.none.fl_str_mv Silva, A. P.
Klein, A. H. F.
Fetter-Filho, A. F. H.
Hein, C. J.
Méndez Incera, Fernando Javier|||0000-0002-5005-1100
Broggio, M. F.
Dalinghaus, C.
author Silva, A. P.
author_facet Silva, A. P.
Klein, A. H. F.
Fetter-Filho, A. F. H.
Hein, C. J.
Méndez Incera, Fernando Javier|||0000-0002-5005-1100
Broggio, M. F.
Dalinghaus, C.
author_role author
author2 Klein, A. H. F.
Fetter-Filho, A. F. H.
Hein, C. J.
Méndez Incera, Fernando Javier|||0000-0002-5005-1100
Broggio, M. F.
Dalinghaus, C.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Ocean sciences
Palaeoceanography
Palaeoclimate
Physical oceanography
topic Ocean sciences
Palaeoceanography
Palaeoclimate
Physical oceanography
description ABSTRACT: Through 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.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10902/20766
url http://hdl.handle.net/10902/20766
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Nature Publishing Group
publisher.none.fl_str_mv Nature Publishing Group
dc.source.none.fl_str_mv Scientific Reports 10, Article number: 18553 (2020)
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405307594080256
score 15,228081

Similares en LA Referencia