Ventilation of the deep Gulf of Mexico and potential insights to the Atlantic Meridional Overturning Circulation
Ventilation in the deep Gulf of Mexico (GoM), its connection to the North Atlantic, and its susceptibility to changes of the Atlantic Meridional Overturning Circulation are investigated by combining observations of radiocarbon and volume transport with a Coupled Model Intercomparison Project phase 6...
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American Association for the Advancement of Science (AAAS)
2023
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craaas:10.1126/sciadv.ade1685 2024-06-09T07:48:00+00:00 Ventilation of the deep Gulf of Mexico and potential insights to the Atlantic Meridional Overturning Circulation Amon, Rainer M.W. Ochoa, Jose Candela, Julio Herzka, Sharon Z. Pérez-Brunius, Paula Sheinbaum, Julio Camacho Ibar, Víctor F. Herguera, Juan Carlos Hernández Ayon, Martin Key, Robert M. Molodtsov, Sergey 2023 http://dx.doi.org/10.1126/sciadv.ade1685 https://www.science.org/doi/pdf/10.1126/sciadv.ade1685 en eng American Association for the Advancement of Science (AAAS) Science Advances volume 9, issue 11 ISSN 2375-2548 journal-article 2023 craaas https://doi.org/10.1126/sciadv.ade1685 2024-05-16T12:54:24Z Ventilation in the deep Gulf of Mexico (GoM), its connection to the North Atlantic, and its susceptibility to changes of the Atlantic Meridional Overturning Circulation are investigated by combining observations of radiocarbon and volume transport with a Coupled Model Intercomparison Project phase 6 (CMIP6) General Circulation Model (GCM) ensemble output. Radiocarbon data and multiannual volume transport through the Yucatan Channel suggest deep water residence times ~100 years for the GoM. Comparisons to previous radiocarbon observations suggest that the deep GoM has aged in the recent past, consistent with observed raising temperatures and the CMIP6 GCM simulations. The distribution of radiocarbon indicates a time frame of ~160 years between North Atlantic convection and complete ventilation of the deep GoM. This suggests that aging and warming of GoM deep waters were initiated in the North Atlantic before ~1890 consistent with reported rapid and persistent AMOC weakening since the Little Ice Age. Article in Journal/Newspaper North Atlantic AAAS Resource Center (American Association for the Advancement of Science) Science Advances 9 11 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science) |
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craaas |
language |
English |
description |
Ventilation in the deep Gulf of Mexico (GoM), its connection to the North Atlantic, and its susceptibility to changes of the Atlantic Meridional Overturning Circulation are investigated by combining observations of radiocarbon and volume transport with a Coupled Model Intercomparison Project phase 6 (CMIP6) General Circulation Model (GCM) ensemble output. Radiocarbon data and multiannual volume transport through the Yucatan Channel suggest deep water residence times ~100 years for the GoM. Comparisons to previous radiocarbon observations suggest that the deep GoM has aged in the recent past, consistent with observed raising temperatures and the CMIP6 GCM simulations. The distribution of radiocarbon indicates a time frame of ~160 years between North Atlantic convection and complete ventilation of the deep GoM. This suggests that aging and warming of GoM deep waters were initiated in the North Atlantic before ~1890 consistent with reported rapid and persistent AMOC weakening since the Little Ice Age. |
format |
Article in Journal/Newspaper |
author |
Amon, Rainer M.W. Ochoa, Jose Candela, Julio Herzka, Sharon Z. Pérez-Brunius, Paula Sheinbaum, Julio Camacho Ibar, Víctor F. Herguera, Juan Carlos Hernández Ayon, Martin Key, Robert M. Molodtsov, Sergey |
spellingShingle |
Amon, Rainer M.W. Ochoa, Jose Candela, Julio Herzka, Sharon Z. Pérez-Brunius, Paula Sheinbaum, Julio Camacho Ibar, Víctor F. Herguera, Juan Carlos Hernández Ayon, Martin Key, Robert M. Molodtsov, Sergey Ventilation of the deep Gulf of Mexico and potential insights to the Atlantic Meridional Overturning Circulation |
author_facet |
Amon, Rainer M.W. Ochoa, Jose Candela, Julio Herzka, Sharon Z. Pérez-Brunius, Paula Sheinbaum, Julio Camacho Ibar, Víctor F. Herguera, Juan Carlos Hernández Ayon, Martin Key, Robert M. Molodtsov, Sergey |
author_sort |
Amon, Rainer M.W. |
title |
Ventilation of the deep Gulf of Mexico and potential insights to the Atlantic Meridional Overturning Circulation |
title_short |
Ventilation of the deep Gulf of Mexico and potential insights to the Atlantic Meridional Overturning Circulation |
title_full |
Ventilation of the deep Gulf of Mexico and potential insights to the Atlantic Meridional Overturning Circulation |
title_fullStr |
Ventilation of the deep Gulf of Mexico and potential insights to the Atlantic Meridional Overturning Circulation |
title_full_unstemmed |
Ventilation of the deep Gulf of Mexico and potential insights to the Atlantic Meridional Overturning Circulation |
title_sort |
ventilation of the deep gulf of mexico and potential insights to the atlantic meridional overturning circulation |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2023 |
url |
http://dx.doi.org/10.1126/sciadv.ade1685 https://www.science.org/doi/pdf/10.1126/sciadv.ade1685 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Science Advances volume 9, issue 11 ISSN 2375-2548 |
op_doi |
https://doi.org/10.1126/sciadv.ade1685 |
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Science Advances |
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9 |
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11 |
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1801379537732239360 |