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Depth fluctuations of mediterranean outflow water along its northward propagation during the late pleistocene

2025-07-11Artigo científico Acesso aberto
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datacite.subject.sdg14:Proteger a Vida Marinha
datacite.subject.sdg13:Ação Climática
datacite.subject.sdg04:Educação de Qualidade
dc.contributor.authorChen, Xinyang
dc.contributor.authorWu, Jiawang
dc.contributor.authorPang, Xiaolei
dc.contributor.authorDang, Haowen
dc.contributor.authorZhong, Lifeng
dc.contributor.authorYu, Jimin
dc.contributor.authorColin, Christophe
dc.contributor.authorLiu, Zhifei
dc.contributor.authorLange, Gert J. de
dc.contributor.authorKaboth‐Bahr, Stefanie
dc.contributor.authorXuan, Chuang
dc.contributor.authorIkeda, Hisashi
dc.contributor.authorHerbert, Timothy D.
dc.contributor.authorHuang, Huai‐Hsuan May
dc.contributor.authorZarikian, Carlos A. Alvarez
dc.contributor.authorAbrantes, Fatima
dc.contributor.authorHodell, David A.
dc.date.accessioned2026-04-08T08:55:22Z
dc.date.available2026-04-08T08:55:22Z
dc.date.issued2025-07-11
dc.description.abstractMediterranean Outflow Water (MOW) critically influences the Atlantic Meridional OverturningCirculation, yet its northward transport dynamics along the Iberian Margin remain unclear. Using terrigenousgrain‐size sortable silt and benthic foraminiferal carbon isotopes from two depth‐strategic sites (U1389:644 m vs. U1588: 1,339 m), we constrain MOW's northward depth fluctuations over the last 250 kyr. Resultsshow that MOW progressively deepened from ∼100 to 60 ka, then stabilized—synchronized with theprevalence of millennial‐scale climate variability. During interglacials, MOW directly influenced U1588,while deepened below this site during glacials. Flow speed gradients between Sites U1389 and U1588 showpronounced precession cycles. At precession maxima—Northern Hemisphere summer insolation minima—when flow intensified, MOW underwent enhanced mixing and dilution during northward transport. Thisresults from increased density contrasts between MOW and ambient waters, indicating deeper MOWpenetration. We demonstrate precessional forcing on both the strength and depth of MOW's northward propagation.eng
dc.description.sponsorship2023A1515030293; 42330403; 42276051; 42306085; 42176074
dc.identifier.doi10.1029/2025gl116967
dc.identifier.eissn1944-8007
dc.identifier.issn0094-8276
dc.identifier.urihttp://hdl.handle.net/10400.1/28611
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.relation.ispartofGeophysical Research Letters
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectEnd-member modeling
dc.subjectIberian margin
dc.subjectIODP expedition 397
dc.subjectMediterranean outflow water
dc.subjectPrecession
dc.subjectSortable silt
dc.titleDepth fluctuations of mediterranean outflow water along its northward propagation during the late pleistoceneeng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue14
oaire.citation.startPagee2025GL116967
oaire.citation.titleGeophysical Research Letters
oaire.citation.volume52
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameAbrantes
person.givenNameFatima
person.identifier.ciencia-id021D-CA76-20D2
person.identifier.orcid0000-0002-9110-0212
person.identifier.ridB-5985-2013
person.identifier.scopus-author-id16030759200
relation.isAuthorOfPublication45b2d36a-1a11-4b6c-81b3-47f657904207
relation.isAuthorOfPublication.latestForDiscovery45b2d36a-1a11-4b6c-81b3-47f657904207

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