Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene
An ensemble of new, high-resolution records of surface ocean hydrography from the Indian-Atlantic oceanic gateway (IAO-G), south of Africa, demonstrates recurrent and high-amplitude salinity oscillations in the Agulhas Leakage area during the penultimate glacial-interglacial cycle. A series of mille...
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American Geophysical Union
2013
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Online Access: | https://orca.cardiff.ac.uk/id/eprint/48585/ https://doi.org/10.1002/palo.20038 https://orca.cardiff.ac.uk/id/eprint/48585/1/Marino%202013.pdf |
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ftunivcardiff:oai:https://orca.cardiff.ac.uk:48585 2023-05-15T17:32:23+02:00 Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene Marino, Gianluca Zahn, Rainer Ziegler, Martin Purcell, Conor Knorr, Gregor Hall, Ian Robert Ziveri, Patrizia Elderfield, Henry 2013 application/pdf https://orca.cardiff.ac.uk/id/eprint/48585/ https://doi.org/10.1002/palo.20038 https://orca.cardiff.ac.uk/id/eprint/48585/1/Marino%202013.pdf en eng American Geophysical Union https://orca.cardiff.ac.uk/id/eprint/48585/1/Marino%202013.pdf Marino, Gianluca, Zahn, Rainer, Ziegler, Martin https://orca.cardiff.ac.uk/view/cardiffauthors/A200087Q.html, Purcell, Conor https://orca.cardiff.ac.uk/view/cardiffauthors/A226958Q.html, Knorr, Gregor https://orca.cardiff.ac.uk/view/cardiffauthors/A023108P.html, Hall, Ian Robert https://orca.cardiff.ac.uk/view/cardiffauthors/A002402L.html orcid:0000-0001-6960-1419 orcid:0000-0001-6960-1419, Ziveri, Patrizia and Elderfield, Henry 2013. Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene. Paleoceanography 28 (3) , pp. 599-606. 10.1002/palo.20038 https://doi.org/10.1002/palo.20038 file https://orca.cardiff.ac.uk/48585/1/Marino%202013.pdf doi:10.1002/palo.20038 GC Oceanography Article PeerReviewed 2013 ftunivcardiff https://doi.org/10.1002/palo.20038 2022-11-10T23:32:42Z An ensemble of new, high-resolution records of surface ocean hydrography from the Indian-Atlantic oceanic gateway (IAO-G), south of Africa, demonstrates recurrent and high-amplitude salinity oscillations in the Agulhas Leakage area during the penultimate glacial-interglacial cycle. A series of millennial-scale salinification events, indicating strengthened salt-leakage into the South Atlantic, appear to correlate with abrupt changes in the North Atlantic climate and Atlantic Meridional Overturning Circulation (AMOC). This interhemispheric coupling, which plausibly involved changes in the Hadley Cell and mid-latitude westerlies that impacted the inter-ocean transport at the tip of Africa, suggests that the Agulhas Leakage acted as a source of negative buoyancy for the perturbed AMOC, possibly aiding its return to full-strength. Our finding points to the Indian-to-Atlantic salt transport as a potentially important modulator of the AMOC during the abrupt climate changes of the Late Pleistocene. Article in Journal/Newspaper North Atlantic Cardiff University: ORCA (Online Research @ Cardiff) Indian Paleoceanography 28 3 599 606 |
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Open Polar |
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Cardiff University: ORCA (Online Research @ Cardiff) |
op_collection_id |
ftunivcardiff |
language |
English |
topic |
GC Oceanography |
spellingShingle |
GC Oceanography Marino, Gianluca Zahn, Rainer Ziegler, Martin Purcell, Conor Knorr, Gregor Hall, Ian Robert Ziveri, Patrizia Elderfield, Henry Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene |
topic_facet |
GC Oceanography |
description |
An ensemble of new, high-resolution records of surface ocean hydrography from the Indian-Atlantic oceanic gateway (IAO-G), south of Africa, demonstrates recurrent and high-amplitude salinity oscillations in the Agulhas Leakage area during the penultimate glacial-interglacial cycle. A series of millennial-scale salinification events, indicating strengthened salt-leakage into the South Atlantic, appear to correlate with abrupt changes in the North Atlantic climate and Atlantic Meridional Overturning Circulation (AMOC). This interhemispheric coupling, which plausibly involved changes in the Hadley Cell and mid-latitude westerlies that impacted the inter-ocean transport at the tip of Africa, suggests that the Agulhas Leakage acted as a source of negative buoyancy for the perturbed AMOC, possibly aiding its return to full-strength. Our finding points to the Indian-to-Atlantic salt transport as a potentially important modulator of the AMOC during the abrupt climate changes of the Late Pleistocene. |
format |
Article in Journal/Newspaper |
author |
Marino, Gianluca Zahn, Rainer Ziegler, Martin Purcell, Conor Knorr, Gregor Hall, Ian Robert Ziveri, Patrizia Elderfield, Henry |
author_facet |
Marino, Gianluca Zahn, Rainer Ziegler, Martin Purcell, Conor Knorr, Gregor Hall, Ian Robert Ziveri, Patrizia Elderfield, Henry |
author_sort |
Marino, Gianluca |
title |
Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene |
title_short |
Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene |
title_full |
Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene |
title_fullStr |
Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene |
title_full_unstemmed |
Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene |
title_sort |
agulhas salt-leakage oscillations during abrupt climate changes of the late pleistocene |
publisher |
American Geophysical Union |
publishDate |
2013 |
url |
https://orca.cardiff.ac.uk/id/eprint/48585/ https://doi.org/10.1002/palo.20038 https://orca.cardiff.ac.uk/id/eprint/48585/1/Marino%202013.pdf |
geographic |
Indian |
geographic_facet |
Indian |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://orca.cardiff.ac.uk/id/eprint/48585/1/Marino%202013.pdf Marino, Gianluca, Zahn, Rainer, Ziegler, Martin https://orca.cardiff.ac.uk/view/cardiffauthors/A200087Q.html, Purcell, Conor https://orca.cardiff.ac.uk/view/cardiffauthors/A226958Q.html, Knorr, Gregor https://orca.cardiff.ac.uk/view/cardiffauthors/A023108P.html, Hall, Ian Robert https://orca.cardiff.ac.uk/view/cardiffauthors/A002402L.html orcid:0000-0001-6960-1419 orcid:0000-0001-6960-1419, Ziveri, Patrizia and Elderfield, Henry 2013. Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene. Paleoceanography 28 (3) , pp. 599-606. 10.1002/palo.20038 https://doi.org/10.1002/palo.20038 file https://orca.cardiff.ac.uk/48585/1/Marino%202013.pdf doi:10.1002/palo.20038 |
op_doi |
https://doi.org/10.1002/palo.20038 |
container_title |
Paleoceanography |
container_volume |
28 |
container_issue |
3 |
container_start_page |
599 |
op_container_end_page |
606 |
_version_ |
1766130468641570816 |