Ventilation of the Southern Ocean pycnocline
Ocean ventilation is the transfer of tracers and young water from the surface down into the ocean interior. The tracers that can be transported to depth include anthropogenic heat and carbon, both of which are critical to understanding future climate trajectories. Ventilation occurs in both high- an...
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2022
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Online Access: | http://nora.nerc.ac.uk/id/eprint/531275/ https://www.annualreviews.org/doi/pdf/10.1146/annurev-marine-010419-011012 |
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ftnerc:oai:nora.nerc.ac.uk:531275 2023-05-15T18:23:44+02:00 Ventilation of the Southern Ocean pycnocline Morrison, Adele K. Waugh, Darryn W. Hogg, Andrew McC. Jones, Daniel C. Abernathey, Ryan P. 2022-01 http://nora.nerc.ac.uk/id/eprint/531275/ https://www.annualreviews.org/doi/pdf/10.1146/annurev-marine-010419-011012 unknown Annual Reviews Morrison, Adele K.; Waugh, Darryn W.; Hogg, Andrew McC.; Jones, Daniel C. orcid:0000-0002-8701-4506 Abernathey, Ryan P. 2022 Ventilation of the Southern Ocean pycnocline. Annual Review of Marine Science, 14 (1). https://doi.org/10.1146/annurev-marine-010419-011012 <https://doi.org/10.1146/annurev-marine-010419-011012> Publication - Article PeerReviewed 2022 ftnerc https://doi.org/10.1146/annurev-marine-010419-011012 2023-02-04T19:52:39Z Ocean ventilation is the transfer of tracers and young water from the surface down into the ocean interior. The tracers that can be transported to depth include anthropogenic heat and carbon, both of which are critical to understanding future climate trajectories. Ventilation occurs in both high- and midlatitude regions, but it is the southern midlatitudes that are responsible for the largest fraction of anthropogenic heat and carbon uptake; such Southern Ocean ventilation is the focus of this review. Southern Ocean ventilation occurs through a chain of interconnected mechanisms, including the zonally averaged meridional overturning circulation, localized subduction, eddy-driven mixing along isopycnals, and lateral transport by subtropical gyres. To unravel the complex pathways of ventilation and reconcile conflicting results, here we assess the relative contribution of each of these mechanisms, emphasizing the three-dimensional and temporally varying nature of the ventilation of the Southern Ocean pycnocline. We conclude that Southern Ocean ventilation depends on multiple processes and that simplified frameworks that explain ventilation changes through a single process are insufficient. Article in Journal/Newspaper Southern Ocean Natural Environment Research Council: NERC Open Research Archive Southern Ocean Annual Review of Marine Science 14 1 405 430 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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description |
Ocean ventilation is the transfer of tracers and young water from the surface down into the ocean interior. The tracers that can be transported to depth include anthropogenic heat and carbon, both of which are critical to understanding future climate trajectories. Ventilation occurs in both high- and midlatitude regions, but it is the southern midlatitudes that are responsible for the largest fraction of anthropogenic heat and carbon uptake; such Southern Ocean ventilation is the focus of this review. Southern Ocean ventilation occurs through a chain of interconnected mechanisms, including the zonally averaged meridional overturning circulation, localized subduction, eddy-driven mixing along isopycnals, and lateral transport by subtropical gyres. To unravel the complex pathways of ventilation and reconcile conflicting results, here we assess the relative contribution of each of these mechanisms, emphasizing the three-dimensional and temporally varying nature of the ventilation of the Southern Ocean pycnocline. We conclude that Southern Ocean ventilation depends on multiple processes and that simplified frameworks that explain ventilation changes through a single process are insufficient. |
format |
Article in Journal/Newspaper |
author |
Morrison, Adele K. Waugh, Darryn W. Hogg, Andrew McC. Jones, Daniel C. Abernathey, Ryan P. |
spellingShingle |
Morrison, Adele K. Waugh, Darryn W. Hogg, Andrew McC. Jones, Daniel C. Abernathey, Ryan P. Ventilation of the Southern Ocean pycnocline |
author_facet |
Morrison, Adele K. Waugh, Darryn W. Hogg, Andrew McC. Jones, Daniel C. Abernathey, Ryan P. |
author_sort |
Morrison, Adele K. |
title |
Ventilation of the Southern Ocean pycnocline |
title_short |
Ventilation of the Southern Ocean pycnocline |
title_full |
Ventilation of the Southern Ocean pycnocline |
title_fullStr |
Ventilation of the Southern Ocean pycnocline |
title_full_unstemmed |
Ventilation of the Southern Ocean pycnocline |
title_sort |
ventilation of the southern ocean pycnocline |
publisher |
Annual Reviews |
publishDate |
2022 |
url |
http://nora.nerc.ac.uk/id/eprint/531275/ https://www.annualreviews.org/doi/pdf/10.1146/annurev-marine-010419-011012 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
Morrison, Adele K.; Waugh, Darryn W.; Hogg, Andrew McC.; Jones, Daniel C. orcid:0000-0002-8701-4506 Abernathey, Ryan P. 2022 Ventilation of the Southern Ocean pycnocline. Annual Review of Marine Science, 14 (1). https://doi.org/10.1146/annurev-marine-010419-011012 <https://doi.org/10.1146/annurev-marine-010419-011012> |
op_doi |
https://doi.org/10.1146/annurev-marine-010419-011012 |
container_title |
Annual Review of Marine Science |
container_volume |
14 |
container_issue |
1 |
container_start_page |
405 |
op_container_end_page |
430 |
_version_ |
1766203822175158272 |