Intrinsically episodic Antarctic shelf intrusions of circumpolar deep water via canyons ...
The structure of the Antarctic Slope Current at the continental shelf is crucial in governing the poleward transport of warm water. Canyons on the continental slope may provide a pathway for warm water to cross the slope current and intrude onto the continental shelf underneath ice shelves, which ca...
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Online Access: | https://dx.doi.org/10.48550/arxiv.2304.13225 https://arxiv.org/abs/2304.13225 |
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ftdatacite:10.48550/arxiv.2304.13225 2024-04-28T08:01:34+00:00 Intrinsically episodic Antarctic shelf intrusions of circumpolar deep water via canyons ... Ong, Ellie Q. Y. Doddridge, Edward Constantinou, Navid C. Hogg, Andrew McC. England, Matthew H. 2023 https://dx.doi.org/10.48550/arxiv.2304.13225 https://arxiv.org/abs/2304.13225 unknown arXiv https://dx.doi.org/10.1175/jpo-d-23-0067.1 Creative Commons Attribution Non Commercial Share Alike 4.0 International https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode cc-by-nc-sa-4.0 Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences article-journal Text Article ScholarlyArticle 2023 ftdatacite https://doi.org/10.48550/arxiv.2304.1322510.1175/jpo-d-23-0067.1 2024-04-02T12:21:20Z The structure of the Antarctic Slope Current at the continental shelf is crucial in governing the poleward transport of warm water. Canyons on the continental slope may provide a pathway for warm water to cross the slope current and intrude onto the continental shelf underneath ice shelves, which can increase rates of ice shelf melting, leading to reduced buttressing of ice shelves, accelerating glacial flow and hence increased sea level rise. Observations and modelling studies of the Antarctic Slope Current and cross-shelf warm water intrusions are limited, particularly in the East Antarctica region. To explore this topic, an idealised configuration of the Antarctic Slope Current is developed, using an eddy-resolving isopycnal model that emulates the dynamics and topography of the East Antarctic sector. Warm water intrusions via canyons are found to occur in discrete episodes of large onshore flow induced by eddies, even in the absence of any temporal variability in external forcings, demonstrating the ... Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Shelf Ice Shelves DataCite Metadata Store (German National Library of Science and Technology) |
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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 |
topic |
Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences |
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Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences Ong, Ellie Q. Y. Doddridge, Edward Constantinou, Navid C. Hogg, Andrew McC. England, Matthew H. Intrinsically episodic Antarctic shelf intrusions of circumpolar deep water via canyons ... |
topic_facet |
Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences |
description |
The structure of the Antarctic Slope Current at the continental shelf is crucial in governing the poleward transport of warm water. Canyons on the continental slope may provide a pathway for warm water to cross the slope current and intrude onto the continental shelf underneath ice shelves, which can increase rates of ice shelf melting, leading to reduced buttressing of ice shelves, accelerating glacial flow and hence increased sea level rise. Observations and modelling studies of the Antarctic Slope Current and cross-shelf warm water intrusions are limited, particularly in the East Antarctica region. To explore this topic, an idealised configuration of the Antarctic Slope Current is developed, using an eddy-resolving isopycnal model that emulates the dynamics and topography of the East Antarctic sector. Warm water intrusions via canyons are found to occur in discrete episodes of large onshore flow induced by eddies, even in the absence of any temporal variability in external forcings, demonstrating the ... |
format |
Article in Journal/Newspaper |
author |
Ong, Ellie Q. Y. Doddridge, Edward Constantinou, Navid C. Hogg, Andrew McC. England, Matthew H. |
author_facet |
Ong, Ellie Q. Y. Doddridge, Edward Constantinou, Navid C. Hogg, Andrew McC. England, Matthew H. |
author_sort |
Ong, Ellie Q. Y. |
title |
Intrinsically episodic Antarctic shelf intrusions of circumpolar deep water via canyons ... |
title_short |
Intrinsically episodic Antarctic shelf intrusions of circumpolar deep water via canyons ... |
title_full |
Intrinsically episodic Antarctic shelf intrusions of circumpolar deep water via canyons ... |
title_fullStr |
Intrinsically episodic Antarctic shelf intrusions of circumpolar deep water via canyons ... |
title_full_unstemmed |
Intrinsically episodic Antarctic shelf intrusions of circumpolar deep water via canyons ... |
title_sort |
intrinsically episodic antarctic shelf intrusions of circumpolar deep water via canyons ... |
publisher |
arXiv |
publishDate |
2023 |
url |
https://dx.doi.org/10.48550/arxiv.2304.13225 https://arxiv.org/abs/2304.13225 |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Shelf Ice Shelves |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Shelf Ice Shelves |
op_relation |
https://dx.doi.org/10.1175/jpo-d-23-0067.1 |
op_rights |
Creative Commons Attribution Non Commercial Share Alike 4.0 International https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode cc-by-nc-sa-4.0 |
op_doi |
https://doi.org/10.48550/arxiv.2304.1322510.1175/jpo-d-23-0067.1 |
_version_ |
1797573252669767680 |