The impact of Southern Ocean Bathymetry on the ocean circulation and overlying atmosphere ...
<!--!introduction!--> The presentation will focus around the impact that major topographic features in the Southern Ocean have on the path of the Antarctic Circumpolar Current (ACC), and their relatively unknown role in the coupled ocean-atmosphere system. We investigate their influence by res...
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GFZ German Research Centre for Geosciences
2023
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Online Access: | https://dx.doi.org/10.57757/iugg23-0810 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016649 |
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ftdatacite:10.57757/iugg23-0810 2023-06-11T04:07:03+02:00 The impact of Southern Ocean Bathymetry on the ocean circulation and overlying atmosphere ... De Boer, Agatha Hutchinson, David Roquet, Fabien Sime, Louise Burls, Natalie Heuze, Celine 2023 https://dx.doi.org/10.57757/iugg23-0810 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016649 unknown GFZ German Research Centre for Geosciences Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 ConferencePaper Oral Article 2023 ftdatacite https://doi.org/10.57757/iugg23-0810 2023-06-01T11:06:54Z <!--!introduction!--> The presentation will focus around the impact that major topographic features in the Southern Ocean have on the path of the Antarctic Circumpolar Current (ACC), and their relatively unknown role in the coupled ocean-atmosphere system. We investigate their influence by respectively flattening the bathymetry around the Kerguelen Plateau, Campbell Plateau, Mid-Atlantic Ridge, and Drake Passage in four simulations in a coupled climate model. The barriers lead to an increase in the ACC transport of between 3% and 14% in the four simulations. The removal of Kerguelen Plateau bathymetry increases convection south of the plateau and the removal of Drake Passage bathymetry reduces convection upstream in the Ross Sea, affecting the deep overturning cell. When the barriers are removed, zonal flattening of the currents leads to SST anomalies upstream and downstream of their locations. Interestingly, these SST anomalies strongly correlate to precipitation in the overlying atmosphere, with ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... Conference Object Antarc* Antarctic Drake Passage Ross Sea Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Antarctic Campbell Plateau ENVELOPE(171.000,171.000,-50.667,-50.667) Drake Passage Kerguelen Mid-Atlantic Ridge Ross Sea Southern Ocean The Antarctic |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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unknown |
description |
<!--!introduction!--> The presentation will focus around the impact that major topographic features in the Southern Ocean have on the path of the Antarctic Circumpolar Current (ACC), and their relatively unknown role in the coupled ocean-atmosphere system. We investigate their influence by respectively flattening the bathymetry around the Kerguelen Plateau, Campbell Plateau, Mid-Atlantic Ridge, and Drake Passage in four simulations in a coupled climate model. The barriers lead to an increase in the ACC transport of between 3% and 14% in the four simulations. The removal of Kerguelen Plateau bathymetry increases convection south of the plateau and the removal of Drake Passage bathymetry reduces convection upstream in the Ross Sea, affecting the deep overturning cell. When the barriers are removed, zonal flattening of the currents leads to SST anomalies upstream and downstream of their locations. Interestingly, these SST anomalies strongly correlate to precipitation in the overlying atmosphere, with ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
format |
Conference Object |
author |
De Boer, Agatha Hutchinson, David Roquet, Fabien Sime, Louise Burls, Natalie Heuze, Celine |
spellingShingle |
De Boer, Agatha Hutchinson, David Roquet, Fabien Sime, Louise Burls, Natalie Heuze, Celine The impact of Southern Ocean Bathymetry on the ocean circulation and overlying atmosphere ... |
author_facet |
De Boer, Agatha Hutchinson, David Roquet, Fabien Sime, Louise Burls, Natalie Heuze, Celine |
author_sort |
De Boer, Agatha |
title |
The impact of Southern Ocean Bathymetry on the ocean circulation and overlying atmosphere ... |
title_short |
The impact of Southern Ocean Bathymetry on the ocean circulation and overlying atmosphere ... |
title_full |
The impact of Southern Ocean Bathymetry on the ocean circulation and overlying atmosphere ... |
title_fullStr |
The impact of Southern Ocean Bathymetry on the ocean circulation and overlying atmosphere ... |
title_full_unstemmed |
The impact of Southern Ocean Bathymetry on the ocean circulation and overlying atmosphere ... |
title_sort |
impact of southern ocean bathymetry on the ocean circulation and overlying atmosphere ... |
publisher |
GFZ German Research Centre for Geosciences |
publishDate |
2023 |
url |
https://dx.doi.org/10.57757/iugg23-0810 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016649 |
long_lat |
ENVELOPE(171.000,171.000,-50.667,-50.667) |
geographic |
Antarctic Campbell Plateau Drake Passage Kerguelen Mid-Atlantic Ridge Ross Sea Southern Ocean The Antarctic |
geographic_facet |
Antarctic Campbell Plateau Drake Passage Kerguelen Mid-Atlantic Ridge Ross Sea Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Drake Passage Ross Sea Southern Ocean |
genre_facet |
Antarc* Antarctic Drake Passage Ross Sea Southern Ocean |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.57757/iugg23-0810 |
_version_ |
1768379562474864640 |