Interbasin Differences in Ocean Ventilation in Response to Variations in the Southern Annular Mode
The response of the ventilation of mode and intermediate waters to abrupt changes in the Southern Annular Mode (SAM) is examined by analyzing the ideal age in a global ocean-sea ice model. The age response is shown to differ between the central Pacific Ocean and other basins. In the central Pacific...
Published in: | Journal of Geophysical Research: Oceans |
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Wiley-Blackwell Publishing Ltd
2022
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/276197 2023-05-15T18:18:18+02:00 Interbasin Differences in Ocean Ventilation in Response to Variations in the Southern Annular Mode Stewart, Kial Waugh, Darryn Hogg, Andy England, Matthew 2022-10-26T22:48:58Z application/pdf http://hdl.handle.net/1885/276197 https://doi.org/10.1029/2020JC016540 https://openresearch-repository.anu.edu.au/bitstream/1885/276197/3/Interbasin%20Differences.pdf.jpg en_AU eng Wiley-Blackwell Publishing Ltd 2169-9275 http://hdl.handle.net/1885/276197 doi:10.1029/2020JC016540 https://openresearch-repository.anu.edu.au/bitstream/1885/276197/3/Interbasin%20Differences.pdf.jpg © 2021 The authors Journal of Geophysical Research: Oceans Journal article 2022 ftanucanberra https://doi.org/10.1029/2020JC016540 2022-10-31T23:15:27Z The response of the ventilation of mode and intermediate waters to abrupt changes in the Southern Annular Mode (SAM) is examined by analyzing the ideal age in a global ocean-sea ice model. The age response is shown to differ between the central Pacific Ocean and other basins. In the central Pacific there are large decreases in the age of subtropical mode and intermediate waters associated with a more positive SAM, contrasting only small age changes in the Atlantic and Indian Oceans, except near where intermediate water density surfaces outcrop. These interbasin differences hold for simulations at different horizontal resolutions, and can be explained by the zonal variations in wind stress changes associated with the SAM. These results suggest that the carbon and heat uptake associated with the SAM will likely vary between ocean basins. This work was supported by compu-tational resources provided by the Australian Government through the National Computational Infrastructure, Canberra. Article in Journal/Newspaper Sea ice Australian National University: ANU Digital Collections Indian Pacific Journal of Geophysical Research: Oceans 126 3 |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
English |
description |
The response of the ventilation of mode and intermediate waters to abrupt changes in the Southern Annular Mode (SAM) is examined by analyzing the ideal age in a global ocean-sea ice model. The age response is shown to differ between the central Pacific Ocean and other basins. In the central Pacific there are large decreases in the age of subtropical mode and intermediate waters associated with a more positive SAM, contrasting only small age changes in the Atlantic and Indian Oceans, except near where intermediate water density surfaces outcrop. These interbasin differences hold for simulations at different horizontal resolutions, and can be explained by the zonal variations in wind stress changes associated with the SAM. These results suggest that the carbon and heat uptake associated with the SAM will likely vary between ocean basins. This work was supported by compu-tational resources provided by the Australian Government through the National Computational Infrastructure, Canberra. |
format |
Article in Journal/Newspaper |
author |
Stewart, Kial Waugh, Darryn Hogg, Andy England, Matthew |
spellingShingle |
Stewart, Kial Waugh, Darryn Hogg, Andy England, Matthew Interbasin Differences in Ocean Ventilation in Response to Variations in the Southern Annular Mode |
author_facet |
Stewart, Kial Waugh, Darryn Hogg, Andy England, Matthew |
author_sort |
Stewart, Kial |
title |
Interbasin Differences in Ocean Ventilation in Response to Variations in the Southern Annular Mode |
title_short |
Interbasin Differences in Ocean Ventilation in Response to Variations in the Southern Annular Mode |
title_full |
Interbasin Differences in Ocean Ventilation in Response to Variations in the Southern Annular Mode |
title_fullStr |
Interbasin Differences in Ocean Ventilation in Response to Variations in the Southern Annular Mode |
title_full_unstemmed |
Interbasin Differences in Ocean Ventilation in Response to Variations in the Southern Annular Mode |
title_sort |
interbasin differences in ocean ventilation in response to variations in the southern annular mode |
publisher |
Wiley-Blackwell Publishing Ltd |
publishDate |
2022 |
url |
http://hdl.handle.net/1885/276197 https://doi.org/10.1029/2020JC016540 https://openresearch-repository.anu.edu.au/bitstream/1885/276197/3/Interbasin%20Differences.pdf.jpg |
geographic |
Indian Pacific |
geographic_facet |
Indian Pacific |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Journal of Geophysical Research: Oceans |
op_relation |
2169-9275 http://hdl.handle.net/1885/276197 doi:10.1029/2020JC016540 https://openresearch-repository.anu.edu.au/bitstream/1885/276197/3/Interbasin%20Differences.pdf.jpg |
op_rights |
© 2021 The authors |
op_doi |
https://doi.org/10.1029/2020JC016540 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
126 |
container_issue |
3 |
_version_ |
1766194842976649216 |