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, 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-sc...
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2013
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Online Access: | https://research.vu.nl/en/publications/f1534f9a-10c8-463e-a5d8-3b8b5da1f7c6 https://doi.org/10.1002/palo.20038 https://hdl.handle.net/1871.1/f1534f9a-10c8-463e-a5d8-3b8b5da1f7c6 |
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ftvuamstcris:oai:research.vu.nl:publications/f1534f9a-10c8-463e-a5d8-3b8b5da1f7c6 2024-06-23T07:55:08+00:00 Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene Marino, G. Zahn, R. Ziegler, M. Purcell, C. Knorr, G. Hall, I.R. Ziveri, P. Elderfield, H. 2013 https://research.vu.nl/en/publications/f1534f9a-10c8-463e-a5d8-3b8b5da1f7c6 https://doi.org/10.1002/palo.20038 https://hdl.handle.net/1871.1/f1534f9a-10c8-463e-a5d8-3b8b5da1f7c6 eng eng https://research.vu.nl/en/publications/f1534f9a-10c8-463e-a5d8-3b8b5da1f7c6 info:eu-repo/semantics/openAccess Marino , G , Zahn , R , Ziegler , M , Purcell , C , Knorr , G , Hall , I R , Ziveri , P & Elderfield , H 2013 , ' Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene ' , Paleoceanography , vol. 28 , no. 3 , pp. 599-606 . https://doi.org/10.1002/palo.20038 /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2013 ftvuamstcris https://doi.org/10.1002/palo.20038 2024-06-12T23:53:02Z An ensemble of new, high-resolution records of surface ocean hydrography from the Indian-Atlantic oceanic gateway, 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 midlatitude westerlies that impacted the interocean 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. Key Points Millennial-scale variability of the Agulhas LeakageConnection between Agulhas Leakage and bipolar seesawRelationship between Agulhas Leakage and abrupt climate change ©2013. American Geophysical Union. All Rights Reserved. Article in Journal/Newspaper North Atlantic Vrije Universiteit Amsterdam (VU): Research Portal Indian Paleoceanography 28 3 599 606 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Marino, G. Zahn, R. Ziegler, M. Purcell, C. Knorr, G. Hall, I.R. Ziveri, P. Elderfield, H. Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
An ensemble of new, high-resolution records of surface ocean hydrography from the Indian-Atlantic oceanic gateway, 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 midlatitude westerlies that impacted the interocean 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. Key Points Millennial-scale variability of the Agulhas LeakageConnection between Agulhas Leakage and bipolar seesawRelationship between Agulhas Leakage and abrupt climate change ©2013. American Geophysical Union. All Rights Reserved. |
format |
Article in Journal/Newspaper |
author |
Marino, G. Zahn, R. Ziegler, M. Purcell, C. Knorr, G. Hall, I.R. Ziveri, P. Elderfield, H. |
author_facet |
Marino, G. Zahn, R. Ziegler, M. Purcell, C. Knorr, G. Hall, I.R. Ziveri, P. Elderfield, H. |
author_sort |
Marino, G. |
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 |
publishDate |
2013 |
url |
https://research.vu.nl/en/publications/f1534f9a-10c8-463e-a5d8-3b8b5da1f7c6 https://doi.org/10.1002/palo.20038 https://hdl.handle.net/1871.1/f1534f9a-10c8-463e-a5d8-3b8b5da1f7c6 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Marino , G , Zahn , R , Ziegler , M , Purcell , C , Knorr , G , Hall , I R , Ziveri , P & Elderfield , H 2013 , ' Agulhas salt-leakage oscillations during abrupt climate changes of the Late Pleistocene ' , Paleoceanography , vol. 28 , no. 3 , pp. 599-606 . https://doi.org/10.1002/palo.20038 |
op_relation |
https://research.vu.nl/en/publications/f1534f9a-10c8-463e-a5d8-3b8b5da1f7c6 |
op_rights |
info:eu-repo/semantics/openAccess |
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 |
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1802647569599299584 |