The Drake Passage opening from an experimental fluid dynamics point of view
Abstract Pronounced global cooling around the Eocene–Oligocene transition (EOT) was a pivotal event in Earth’s climate history, controversially associated with the opening of the Drake Passage. Using a physical laboratory model we revisit the fluid dynamics of this marked reorganization of ocean cir...
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crspringernat:10.1038/s41598-021-99123-0 2023-05-15T14:10:37+02:00 The Drake Passage opening from an experimental fluid dynamics point of view Vincze, Miklós Bozóki, Tamás Herein, Mátyás Borcia, Ion Dan Harlander, Uwe Horicsányi, Attila Nyerges, Anita Rodda, Costanza Pál, András Pálfy, József 2021 http://dx.doi.org/10.1038/s41598-021-99123-0 https://www.nature.com/articles/s41598-021-99123-0.pdf https://www.nature.com/articles/s41598-021-99123-0 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 11, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2021 crspringernat https://doi.org/10.1038/s41598-021-99123-0 2022-01-04T13:38:22Z Abstract Pronounced global cooling around the Eocene–Oligocene transition (EOT) was a pivotal event in Earth’s climate history, controversially associated with the opening of the Drake Passage. Using a physical laboratory model we revisit the fluid dynamics of this marked reorganization of ocean circulation. Here we show, seemingly contradicting paleoclimate records, that in our experiments opening the pathway yields higher values of mean water surface temperature than the “closed” configuration. This mismatch points to the importance of the role ice albedo feedback plays in the investigated EOT-like transition, a component that is not captured in the laboratory model. Our conclusion is supported by numerical simulations performed in a global climate model (GCM) of intermediate complexity, where both “closed” and “open” configurations were explored, with and without active sea ice dynamics. The GCM results indicate that sea surface temperatures would change in the opposite direction following an opening event in the two sea ice dynamics settings, and the results are therefore consistent both with the laboratory experiment (slight warming after opening) and the paleoclimatic data (pronounced cooling after opening). It follows that in the hypothetical case of an initially ice-free Antarctica the continent could have become even warmer after the opening, a scenario not indicated by paleotemperature reconstructions. Article in Journal/Newspaper Antarc* Antarctica Drake Passage Sea ice Springer Nature (via Crossref) Drake Passage Scientific Reports 11 1 |
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Springer Nature (via Crossref) |
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Multidisciplinary Vincze, Miklós Bozóki, Tamás Herein, Mátyás Borcia, Ion Dan Harlander, Uwe Horicsányi, Attila Nyerges, Anita Rodda, Costanza Pál, András Pálfy, József The Drake Passage opening from an experimental fluid dynamics point of view |
topic_facet |
Multidisciplinary |
description |
Abstract Pronounced global cooling around the Eocene–Oligocene transition (EOT) was a pivotal event in Earth’s climate history, controversially associated with the opening of the Drake Passage. Using a physical laboratory model we revisit the fluid dynamics of this marked reorganization of ocean circulation. Here we show, seemingly contradicting paleoclimate records, that in our experiments opening the pathway yields higher values of mean water surface temperature than the “closed” configuration. This mismatch points to the importance of the role ice albedo feedback plays in the investigated EOT-like transition, a component that is not captured in the laboratory model. Our conclusion is supported by numerical simulations performed in a global climate model (GCM) of intermediate complexity, where both “closed” and “open” configurations were explored, with and without active sea ice dynamics. The GCM results indicate that sea surface temperatures would change in the opposite direction following an opening event in the two sea ice dynamics settings, and the results are therefore consistent both with the laboratory experiment (slight warming after opening) and the paleoclimatic data (pronounced cooling after opening). It follows that in the hypothetical case of an initially ice-free Antarctica the continent could have become even warmer after the opening, a scenario not indicated by paleotemperature reconstructions. |
format |
Article in Journal/Newspaper |
author |
Vincze, Miklós Bozóki, Tamás Herein, Mátyás Borcia, Ion Dan Harlander, Uwe Horicsányi, Attila Nyerges, Anita Rodda, Costanza Pál, András Pálfy, József |
author_facet |
Vincze, Miklós Bozóki, Tamás Herein, Mátyás Borcia, Ion Dan Harlander, Uwe Horicsányi, Attila Nyerges, Anita Rodda, Costanza Pál, András Pálfy, József |
author_sort |
Vincze, Miklós |
title |
The Drake Passage opening from an experimental fluid dynamics point of view |
title_short |
The Drake Passage opening from an experimental fluid dynamics point of view |
title_full |
The Drake Passage opening from an experimental fluid dynamics point of view |
title_fullStr |
The Drake Passage opening from an experimental fluid dynamics point of view |
title_full_unstemmed |
The Drake Passage opening from an experimental fluid dynamics point of view |
title_sort |
drake passage opening from an experimental fluid dynamics point of view |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1038/s41598-021-99123-0 https://www.nature.com/articles/s41598-021-99123-0.pdf https://www.nature.com/articles/s41598-021-99123-0 |
geographic |
Drake Passage |
geographic_facet |
Drake Passage |
genre |
Antarc* Antarctica Drake Passage Sea ice |
genre_facet |
Antarc* Antarctica Drake Passage Sea ice |
op_source |
Scientific Reports volume 11, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-021-99123-0 |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
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1766282697007693824 |