UnivTrevesV1, Main, Exploration, bibRecord, 000266

Glacial reduction and millennial-scale variations in Drake Passage throughflow

Identifieur interne : 000266 ( Main/Exploration ); précédent : 000265; suivant : 000267

Glacial reduction and millennial-scale variations in Drake Passage throughflow

Auteurs : Frank Lamy [Allemagne] ; Helge W. Arz [Allemagne] ; Rolf Kilian [Allemagne, Chili] ; Carina B. Lange [Chili] ; Lester Lembke-Jene [Allemagne] ; Marc Wengler [Allemagne] ; Jérôme Kaiser [Allemagne] ; Oscar Baeza-Urrea [Allemagne] ; Ian R. Hall [Royaume-Uni] ; Naomi Harada [Japon] ; Ralf Tiedemann [Allemagne]

Source :

Proceedings of the National Academy of Sciences of the United States of America [ 0027-8424 ] ; 2015.

RBID : PMC:4640728

Abstract

Significance

The Drake Passage (DP) represents the most important oceanic gateway along the pathway of the world’s largest current: the Antarctic Circumpolar Current (ACC). Resolving changes in the flow of circumpolar water masses through the DP is crucial for advancing our understanding of the Southern Ocean’s role in affecting ocean and climate change on a global scale. We reconstruct current intensity from marine sediment records around the southern tip of South America with unprecedented millennial-scale resolution covering the past ∼65,000 y. For the last glacial period, we infer intervals of strong weakening of the ACC entering the DP, implying an enhanced export of northern ACC surface and intermediate waters into the South Pacific Gyre and reduced Pacific–Atlantic exchange through the cold water route.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4640728

DOI: 10.1073/pnas.1509203112
PubMed: 26417070
PubMed Central: 4640728

Affiliations:

Allemagne, Chili, Japon, Royaume-Uni

Le document en format XML

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<p>The Drake Passage (DP) represents the most important oceanic gateway along the pathway of the world’s largest current: the Antarctic Circumpolar Current (ACC). Resolving changes in the flow of circumpolar water masses through the DP is crucial for advancing our understanding of the Southern Ocean’s role in affecting ocean and climate change on a global scale. We reconstruct current intensity from marine sediment records around the southern tip of South America with unprecedented millennial-scale resolution covering the past ∼65,000 y. For the last glacial period, we infer intervals of strong weakening of the ACC entering the DP, implying an enhanced export of northern ACC surface and intermediate waters into the South Pacific Gyre and reduced Pacific–Atlantic exchange through the cold water route.</p>
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Glacial reduction and millennial-scale variations in Drake Passage throughflow

Glacial reduction and millennial-scale variations in Drake Passage throughflow

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Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

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Pour générer des pages wiki

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