Seasonality of the Meridional Overturning Circulation in the subpolar North Atlantic
Subpolar overturning in the North Atlantic Ocean shows substantial seasonality, with a maximum in late spring, a minimum in early winter, and a total range of about 9 Sv, according to observations from the OSNAP array between 2014 and 2020. Understanding the variability of the Atlantic Meridional Ov...
Published in: | Communications Earth & Environment |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Nature Research
2023
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Online Access: | https://oceanrep.geomar.de/id/eprint/58782/ https://oceanrep.geomar.de/id/eprint/58782/1/s43247-023-00848-9.pdf https://www.nature.com/articles/s43247-023-00848-9 https://doi.org/10.1038/s43247-023-00848-9 |
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ftoceanrep:oai:oceanrep.geomar.de:58782 2024-02-11T10:06:05+01:00 Seasonality of the Meridional Overturning Circulation in the subpolar North Atlantic Fu, Yao Lozier, M. Susan Biló, Tiago Carrilho Bower, Amy S. Cunningham, Stuart A. Cyr, Frédéric de Jong, M. Femke deYoung, Brad Drysdale, Lewis Fraser, Neil Fried, Nora Furey, Heather H. Han, Guoqi Handmann, Patricia Holliday, N. Penny Holte, James Inall, Mark E. Johns, William E. Jones, Sam Karstensen, Johannes Li, Feili Pacini, Astrid Pickart, Robert S. Rayner, Darren Straneo, Fiammetta Yashayaev, Igor 2023-05-25 text https://oceanrep.geomar.de/id/eprint/58782/ https://oceanrep.geomar.de/id/eprint/58782/1/s43247-023-00848-9.pdf https://www.nature.com/articles/s43247-023-00848-9 https://doi.org/10.1038/s43247-023-00848-9 en eng Nature Research https://oceanrep.geomar.de/id/eprint/58782/1/s43247-023-00848-9.pdf Fu, Y., Lozier, M. S., Biló, T. C., Bower, A. S., Cunningham, S. A., Cyr, F., de Jong, M. F., deYoung, B., Drysdale, L., Fraser, N., Fried, N., Furey, H. H., Han, G., Handmann, P. , Holliday, N. P., Holte, J., Inall, M. E., Johns, W. E., Jones, S., Karstensen, J. , Li, F., Pacini, A., Pickart, R. S., Rayner, D., Straneo, F. and Yashayaev, I. (2023) Seasonality of the Meridional Overturning Circulation in the subpolar North Atlantic. Open Access Communications Earth & Environment, 4 (1). Art.Nr. 181. DOI 10.1038/s43247-023-00848-9 <https://doi.org/10.1038/s43247-023-00848-9>. doi:10.1038/s43247-023-00848-9 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed info:eu-repo/semantics/article 2023 ftoceanrep https://doi.org/10.1038/s43247-023-00848-9 2024-01-15T00:27:16Z Subpolar overturning in the North Atlantic Ocean shows substantial seasonality, with a maximum in late spring, a minimum in early winter, and a total range of about 9 Sv, according to observations from the OSNAP array between 2014 and 2020. Understanding the variability of the Atlantic Meridional Overturning Circulation is essential for better predictions of our changing climate. Here we present an updated time series (August 2014 to June 2020) from the Overturning in the Subpolar North Atlantic Program. The 6-year time series allows us to observe the seasonality of the subpolar overturning and meridional heat and freshwater transports. The overturning peaks in late spring and reaches a minimum in early winter, with a peak-to-trough range of 9.0 Sv. The overturning seasonal timing can be explained by winter transformation and the export of dense water, modulated by a seasonally varying Ekman transport. Furthermore, over 55% of the total meridional freshwater transport variability can be explained by its seasonality, largely owing to overturning dynamics. Our results provide the first observational analysis of seasonality in the subpolar North Atlantic overturning and highlight its important contribution to the total overturning variability observed to date. Article in Journal/Newspaper North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Communications Earth & Environment 4 1 |
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Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Subpolar overturning in the North Atlantic Ocean shows substantial seasonality, with a maximum in late spring, a minimum in early winter, and a total range of about 9 Sv, according to observations from the OSNAP array between 2014 and 2020. Understanding the variability of the Atlantic Meridional Overturning Circulation is essential for better predictions of our changing climate. Here we present an updated time series (August 2014 to June 2020) from the Overturning in the Subpolar North Atlantic Program. The 6-year time series allows us to observe the seasonality of the subpolar overturning and meridional heat and freshwater transports. The overturning peaks in late spring and reaches a minimum in early winter, with a peak-to-trough range of 9.0 Sv. The overturning seasonal timing can be explained by winter transformation and the export of dense water, modulated by a seasonally varying Ekman transport. Furthermore, over 55% of the total meridional freshwater transport variability can be explained by its seasonality, largely owing to overturning dynamics. Our results provide the first observational analysis of seasonality in the subpolar North Atlantic overturning and highlight its important contribution to the total overturning variability observed to date. |
format |
Article in Journal/Newspaper |
author |
Fu, Yao Lozier, M. Susan Biló, Tiago Carrilho Bower, Amy S. Cunningham, Stuart A. Cyr, Frédéric de Jong, M. Femke deYoung, Brad Drysdale, Lewis Fraser, Neil Fried, Nora Furey, Heather H. Han, Guoqi Handmann, Patricia Holliday, N. Penny Holte, James Inall, Mark E. Johns, William E. Jones, Sam Karstensen, Johannes Li, Feili Pacini, Astrid Pickart, Robert S. Rayner, Darren Straneo, Fiammetta Yashayaev, Igor |
spellingShingle |
Fu, Yao Lozier, M. Susan Biló, Tiago Carrilho Bower, Amy S. Cunningham, Stuart A. Cyr, Frédéric de Jong, M. Femke deYoung, Brad Drysdale, Lewis Fraser, Neil Fried, Nora Furey, Heather H. Han, Guoqi Handmann, Patricia Holliday, N. Penny Holte, James Inall, Mark E. Johns, William E. Jones, Sam Karstensen, Johannes Li, Feili Pacini, Astrid Pickart, Robert S. Rayner, Darren Straneo, Fiammetta Yashayaev, Igor Seasonality of the Meridional Overturning Circulation in the subpolar North Atlantic |
author_facet |
Fu, Yao Lozier, M. Susan Biló, Tiago Carrilho Bower, Amy S. Cunningham, Stuart A. Cyr, Frédéric de Jong, M. Femke deYoung, Brad Drysdale, Lewis Fraser, Neil Fried, Nora Furey, Heather H. Han, Guoqi Handmann, Patricia Holliday, N. Penny Holte, James Inall, Mark E. Johns, William E. Jones, Sam Karstensen, Johannes Li, Feili Pacini, Astrid Pickart, Robert S. Rayner, Darren Straneo, Fiammetta Yashayaev, Igor |
author_sort |
Fu, Yao |
title |
Seasonality of the Meridional Overturning Circulation in the subpolar North Atlantic |
title_short |
Seasonality of the Meridional Overturning Circulation in the subpolar North Atlantic |
title_full |
Seasonality of the Meridional Overturning Circulation in the subpolar North Atlantic |
title_fullStr |
Seasonality of the Meridional Overturning Circulation in the subpolar North Atlantic |
title_full_unstemmed |
Seasonality of the Meridional Overturning Circulation in the subpolar North Atlantic |
title_sort |
seasonality of the meridional overturning circulation in the subpolar north atlantic |
publisher |
Nature Research |
publishDate |
2023 |
url |
https://oceanrep.geomar.de/id/eprint/58782/ https://oceanrep.geomar.de/id/eprint/58782/1/s43247-023-00848-9.pdf https://www.nature.com/articles/s43247-023-00848-9 https://doi.org/10.1038/s43247-023-00848-9 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/58782/1/s43247-023-00848-9.pdf Fu, Y., Lozier, M. S., Biló, T. C., Bower, A. S., Cunningham, S. A., Cyr, F., de Jong, M. F., deYoung, B., Drysdale, L., Fraser, N., Fried, N., Furey, H. H., Han, G., Handmann, P. , Holliday, N. P., Holte, J., Inall, M. E., Johns, W. E., Jones, S., Karstensen, J. , Li, F., Pacini, A., Pickart, R. S., Rayner, D., Straneo, F. and Yashayaev, I. (2023) Seasonality of the Meridional Overturning Circulation in the subpolar North Atlantic. Open Access Communications Earth & Environment, 4 (1). Art.Nr. 181. DOI 10.1038/s43247-023-00848-9 <https://doi.org/10.1038/s43247-023-00848-9>. doi:10.1038/s43247-023-00848-9 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s43247-023-00848-9 |
container_title |
Communications Earth & Environment |
container_volume |
4 |
container_issue |
1 |
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1790603506354225152 |