A deep Tasman outflow of Pacific waters during the last glacial period
© The Author(s), 2022. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Struve, T., Wilson, D., Hines, S., Adkins, J., & van de Flierdt, T. A deep Tasman outflow of Pacific waters during the last glacial period. Natu...
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Online Access: | https://hdl.handle.net/1912/29421 |
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/29421 2023-05-15T16:02:35+02:00 A deep Tasman outflow of Pacific waters during the last glacial period Struve, Torben Wilson, David J. Hines, Sophia K. Adkins, Jess F. van de Flierdt, Tina 2022-06-30 https://hdl.handle.net/1912/29421 unknown Nature Research https://doi.org/10.1038/s41467-022-31116-7 Struve, T., Wilson, D., Hines, S., Adkins, J., & van de Flierdt, T. (2022). A deep Tasman outflow of Pacific waters during the last glacial period. Nature Communications, 13(1), 3763. https://hdl.handle.net/1912/29421 doi:10.1038/s41467-022-31116-7 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ CC-BY Struve, T., Wilson, D., Hines, S., Adkins, J., & van de Flierdt, T. (2022). A deep Tasman outflow of Pacific waters during the last glacial period. Nature Communications, 13(1), 3763. doi:10.1038/s41467-022-31116-7 Article 2022 ftwhoas https://doi.org/10.1038/s41467-022-31116-7 2022-10-15T22:57:09Z © The Author(s), 2022. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Struve, T., Wilson, D., Hines, S., Adkins, J., & van de Flierdt, T. A deep Tasman outflow of Pacific waters during the last glacial period. Nature Communications, 13(1), (2022): 3763, https://doi.org/10.1038/s41467-022-31116-7. The interoceanic exchange of water masses is modulated by flow through key oceanic choke points in the Drake Passage, the Indonesian Seas, south of Africa, and south of Tasmania. Here, we use the neodymium isotope signature (εNd) of cold-water coral skeletons from intermediate depths (1460‒1689 m) to trace circulation changes south of Tasmania during the last glacial period. The key feature of our dataset is a long-term trend towards radiogenic εNd values of ~−4.6 during the Last Glacial Maximum and Heinrich Stadial 1, which are clearly distinct from contemporaneous Southern Ocean εNd of ~−7. When combined with previously published radiocarbon data from the same corals, our results indicate that a unique radiogenic and young water mass was present during this time. This scenario can be explained by a more vigorous Pacific overturning circulation that supported a deeper outflow of Pacific waters, including North Pacific Intermediate Water, through the Tasman Sea. The authors acknowledge financial support from the Grantham Institute of Climate Change and the Environment (T.v.d.F. and T.S.), the Ministry for Science and Culture of the State of Lower Saxony (T.S.), Marie Curie Reintegration grant IRG 230828 (T.v.d.F.), Leverhulme Trust grant RPG-398 (T.v.d.F.), Natural Environment Research Council grants NE/F016751/1 (T.v.d.F.), NE/N001141/1 (T.v.d.F. and D.J.W.), and NE/T011440/1 (D.J.W.), and National Science Foundation grant OCE-1503129 (J.F.A. and S.K.V.H.). Open Access funding is enabled by the DFG open access publication fund and the Carl von Ossietzky University Oldenburg. Article in Journal/Newspaper Drake Passage Southern Ocean Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Adkins ENVELOPE(-62.017,-62.017,-73.076,-73.076) Drake Passage Hines ENVELOPE(13.035,13.035,66.243,66.243) Oldenburg Pacific Southern Ocean Struve ENVELOPE(14.833,14.833,-72.067,-72.067) Nature Communications 13 1 |
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Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
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© The Author(s), 2022. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Struve, T., Wilson, D., Hines, S., Adkins, J., & van de Flierdt, T. A deep Tasman outflow of Pacific waters during the last glacial period. Nature Communications, 13(1), (2022): 3763, https://doi.org/10.1038/s41467-022-31116-7. The interoceanic exchange of water masses is modulated by flow through key oceanic choke points in the Drake Passage, the Indonesian Seas, south of Africa, and south of Tasmania. Here, we use the neodymium isotope signature (εNd) of cold-water coral skeletons from intermediate depths (1460‒1689 m) to trace circulation changes south of Tasmania during the last glacial period. The key feature of our dataset is a long-term trend towards radiogenic εNd values of ~−4.6 during the Last Glacial Maximum and Heinrich Stadial 1, which are clearly distinct from contemporaneous Southern Ocean εNd of ~−7. When combined with previously published radiocarbon data from the same corals, our results indicate that a unique radiogenic and young water mass was present during this time. This scenario can be explained by a more vigorous Pacific overturning circulation that supported a deeper outflow of Pacific waters, including North Pacific Intermediate Water, through the Tasman Sea. The authors acknowledge financial support from the Grantham Institute of Climate Change and the Environment (T.v.d.F. and T.S.), the Ministry for Science and Culture of the State of Lower Saxony (T.S.), Marie Curie Reintegration grant IRG 230828 (T.v.d.F.), Leverhulme Trust grant RPG-398 (T.v.d.F.), Natural Environment Research Council grants NE/F016751/1 (T.v.d.F.), NE/N001141/1 (T.v.d.F. and D.J.W.), and NE/T011440/1 (D.J.W.), and National Science Foundation grant OCE-1503129 (J.F.A. and S.K.V.H.). Open Access funding is enabled by the DFG open access publication fund and the Carl von Ossietzky University Oldenburg. |
format |
Article in Journal/Newspaper |
author |
Struve, Torben Wilson, David J. Hines, Sophia K. Adkins, Jess F. van de Flierdt, Tina |
spellingShingle |
Struve, Torben Wilson, David J. Hines, Sophia K. Adkins, Jess F. van de Flierdt, Tina A deep Tasman outflow of Pacific waters during the last glacial period |
author_facet |
Struve, Torben Wilson, David J. Hines, Sophia K. Adkins, Jess F. van de Flierdt, Tina |
author_sort |
Struve, Torben |
title |
A deep Tasman outflow of Pacific waters during the last glacial period |
title_short |
A deep Tasman outflow of Pacific waters during the last glacial period |
title_full |
A deep Tasman outflow of Pacific waters during the last glacial period |
title_fullStr |
A deep Tasman outflow of Pacific waters during the last glacial period |
title_full_unstemmed |
A deep Tasman outflow of Pacific waters during the last glacial period |
title_sort |
deep tasman outflow of pacific waters during the last glacial period |
publisher |
Nature Research |
publishDate |
2022 |
url |
https://hdl.handle.net/1912/29421 |
long_lat |
ENVELOPE(-62.017,-62.017,-73.076,-73.076) ENVELOPE(13.035,13.035,66.243,66.243) ENVELOPE(14.833,14.833,-72.067,-72.067) |
geographic |
Adkins Drake Passage Hines Oldenburg Pacific Southern Ocean Struve |
geographic_facet |
Adkins Drake Passage Hines Oldenburg Pacific Southern Ocean Struve |
genre |
Drake Passage Southern Ocean |
genre_facet |
Drake Passage Southern Ocean |
op_source |
Struve, T., Wilson, D., Hines, S., Adkins, J., & van de Flierdt, T. (2022). A deep Tasman outflow of Pacific waters during the last glacial period. Nature Communications, 13(1), 3763. doi:10.1038/s41467-022-31116-7 |
op_relation |
https://doi.org/10.1038/s41467-022-31116-7 Struve, T., Wilson, D., Hines, S., Adkins, J., & van de Flierdt, T. (2022). A deep Tasman outflow of Pacific waters during the last glacial period. Nature Communications, 13(1), 3763. https://hdl.handle.net/1912/29421 doi:10.1038/s41467-022-31116-7 |
op_rights |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41467-022-31116-7 |
container_title |
Nature Communications |
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13 |
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1 |
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1766398241483522048 |