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The downward spiralling nature of the North Atlantic Subtropical Gyre
The Atlantic Meridional Overturning Circulation (AMOC) regulates the heat distribution and climate of Earth. Here we identify a new feature of the circulation within the North Atlantic Subtropical Gyre that is associated with the northward flowing component of the AMOC. We find that 70% of the water...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9010438/ https://www.ncbi.nlm.nih.gov/pubmed/35422049 http://dx.doi.org/10.1038/s41467-022-29607-8 |
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author | Berglund, Sara Döös, Kristofer Groeskamp, Sjoerd McDougall, Trevor J. |
author_facet | Berglund, Sara Döös, Kristofer Groeskamp, Sjoerd McDougall, Trevor J. |
author_sort | Berglund, Sara |
collection | PubMed |
description | The Atlantic Meridional Overturning Circulation (AMOC) regulates the heat distribution and climate of Earth. Here we identify a new feature of the circulation within the North Atlantic Subtropical Gyre that is associated with the northward flowing component of the AMOC. We find that 70% of the water that flows northwards as part of the AMOC circulates the Gyre at least once before it can continue northwards. These circuits are needed to achieve an increase of density and depth through a combination of air-sea interaction and interior mixing processes, before water can escape the latitudes of the Gyre and join the northern upper branch of the AMOC. This points towards an important role of the Gyre circulation in determining the strength and variability of the AMOC and the northward heat transport. Understanding this newly identified role of the North Atlantic Subtropical Gyre is needed to properly represent future changes of the AMOC. |
format | Online Article Text |
id | pubmed-9010438 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-90104382022-04-28 The downward spiralling nature of the North Atlantic Subtropical Gyre Berglund, Sara Döös, Kristofer Groeskamp, Sjoerd McDougall, Trevor J. Nat Commun Article The Atlantic Meridional Overturning Circulation (AMOC) regulates the heat distribution and climate of Earth. Here we identify a new feature of the circulation within the North Atlantic Subtropical Gyre that is associated with the northward flowing component of the AMOC. We find that 70% of the water that flows northwards as part of the AMOC circulates the Gyre at least once before it can continue northwards. These circuits are needed to achieve an increase of density and depth through a combination of air-sea interaction and interior mixing processes, before water can escape the latitudes of the Gyre and join the northern upper branch of the AMOC. This points towards an important role of the Gyre circulation in determining the strength and variability of the AMOC and the northward heat transport. Understanding this newly identified role of the North Atlantic Subtropical Gyre is needed to properly represent future changes of the AMOC. Nature Publishing Group UK 2022-04-14 /pmc/articles/PMC9010438/ /pubmed/35422049 http://dx.doi.org/10.1038/s41467-022-29607-8 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Berglund, Sara Döös, Kristofer Groeskamp, Sjoerd McDougall, Trevor J. The downward spiralling nature of the North Atlantic Subtropical Gyre |
title | The downward spiralling nature of the North Atlantic Subtropical Gyre |
title_full | The downward spiralling nature of the North Atlantic Subtropical Gyre |
title_fullStr | The downward spiralling nature of the North Atlantic Subtropical Gyre |
title_full_unstemmed | The downward spiralling nature of the North Atlantic Subtropical Gyre |
title_short | The downward spiralling nature of the North Atlantic Subtropical Gyre |
title_sort | downward spiralling nature of the north atlantic subtropical gyre |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9010438/ https://www.ncbi.nlm.nih.gov/pubmed/35422049 http://dx.doi.org/10.1038/s41467-022-29607-8 |
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