Poleward eddy-induced warm water transport across a shelf break off Totten Ice Shelf, East Antarctica
Ice mass loss in the Wilkes Land sector of East Antarctica and the Amundsen and Bellingshausen Sea sectors of West Antarctica has contributed to a rise in sea levels over several decades. The massive continental ice behind the Totten Ice Shelf, equivalent to a few meters of sea-level rise, is ground...
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Online Access: | http://hdl.handle.net/2115/82661 https://doi.org/10.1038/s43247-021-00217-4 |
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/82661 2023-05-15T13:51:33+02:00 Poleward eddy-induced warm water transport across a shelf break off Totten Ice Shelf, East Antarctica Hirano, Daisuke Mizobata, Kohei Sasaki, Hiroko Murase, Hiroto Tamura, Takeshi Aoki, Shigeru http://hdl.handle.net/2115/82661 https://doi.org/10.1038/s43247-021-00217-4 eng eng Springer Nature http://hdl.handle.net/2115/82661 Communications Earth & Environment, 2(1): 153 http://dx.doi.org/10.1038/s43247-021-00217-4 450 article fthokunivhus https://doi.org/10.1038/s43247-021-00217-4 2022-11-18T01:06:36Z Ice mass loss in the Wilkes Land sector of East Antarctica and the Amundsen and Bellingshausen Sea sectors of West Antarctica has contributed to a rise in sea levels over several decades. The massive continental ice behind the Totten Ice Shelf, equivalent to a few meters of sea-level rise, is grounded well below sea level and therefore, potentially vulnerable to oceanic heat. Here, we present analyses of comprehensive hydrographic observations at the continental slope and shelf break regions off Totten Ice Shelf. We provide robust evidence that the relatively warm Circumpolar Deep Water that originates at intermediate depths in the Antarctic Circumpolar Current is transported efficiently towards the shelf break by multiple cyclonic eddies. We propose that these semi-permanent cyclonic circulations play a critical role in transporting the available ocean heat towards Totten Ice Shelf, and melting it from underneath, thus eventually influencing the global climate. Circumpolar Deep Water is efficiently transported towards the shelf break off Totten Ice Shelf, East Antarctica by cyclonic eddies, suggest comprehensive hydrographic observations. Article in Journal/Newspaper Antarc* Antarctic Antarctica Bellingshausen Sea East Antarctica Ice Shelf Totten Ice Shelf West Antarctica Wilkes Land Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Antarctic Bellingshausen Sea East Antarctica The Antarctic West Antarctica Wilkes Land ENVELOPE(120.000,120.000,-69.000,-69.000) Communications Earth & Environment 2 1 |
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Open Polar |
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Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
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fthokunivhus |
language |
English |
topic |
450 |
spellingShingle |
450 Hirano, Daisuke Mizobata, Kohei Sasaki, Hiroko Murase, Hiroto Tamura, Takeshi Aoki, Shigeru Poleward eddy-induced warm water transport across a shelf break off Totten Ice Shelf, East Antarctica |
topic_facet |
450 |
description |
Ice mass loss in the Wilkes Land sector of East Antarctica and the Amundsen and Bellingshausen Sea sectors of West Antarctica has contributed to a rise in sea levels over several decades. The massive continental ice behind the Totten Ice Shelf, equivalent to a few meters of sea-level rise, is grounded well below sea level and therefore, potentially vulnerable to oceanic heat. Here, we present analyses of comprehensive hydrographic observations at the continental slope and shelf break regions off Totten Ice Shelf. We provide robust evidence that the relatively warm Circumpolar Deep Water that originates at intermediate depths in the Antarctic Circumpolar Current is transported efficiently towards the shelf break by multiple cyclonic eddies. We propose that these semi-permanent cyclonic circulations play a critical role in transporting the available ocean heat towards Totten Ice Shelf, and melting it from underneath, thus eventually influencing the global climate. Circumpolar Deep Water is efficiently transported towards the shelf break off Totten Ice Shelf, East Antarctica by cyclonic eddies, suggest comprehensive hydrographic observations. |
format |
Article in Journal/Newspaper |
author |
Hirano, Daisuke Mizobata, Kohei Sasaki, Hiroko Murase, Hiroto Tamura, Takeshi Aoki, Shigeru |
author_facet |
Hirano, Daisuke Mizobata, Kohei Sasaki, Hiroko Murase, Hiroto Tamura, Takeshi Aoki, Shigeru |
author_sort |
Hirano, Daisuke |
title |
Poleward eddy-induced warm water transport across a shelf break off Totten Ice Shelf, East Antarctica |
title_short |
Poleward eddy-induced warm water transport across a shelf break off Totten Ice Shelf, East Antarctica |
title_full |
Poleward eddy-induced warm water transport across a shelf break off Totten Ice Shelf, East Antarctica |
title_fullStr |
Poleward eddy-induced warm water transport across a shelf break off Totten Ice Shelf, East Antarctica |
title_full_unstemmed |
Poleward eddy-induced warm water transport across a shelf break off Totten Ice Shelf, East Antarctica |
title_sort |
poleward eddy-induced warm water transport across a shelf break off totten ice shelf, east antarctica |
publisher |
Springer Nature |
url |
http://hdl.handle.net/2115/82661 https://doi.org/10.1038/s43247-021-00217-4 |
long_lat |
ENVELOPE(120.000,120.000,-69.000,-69.000) |
geographic |
Antarctic Bellingshausen Sea East Antarctica The Antarctic West Antarctica Wilkes Land |
geographic_facet |
Antarctic Bellingshausen Sea East Antarctica The Antarctic West Antarctica Wilkes Land |
genre |
Antarc* Antarctic Antarctica Bellingshausen Sea East Antarctica Ice Shelf Totten Ice Shelf West Antarctica Wilkes Land |
genre_facet |
Antarc* Antarctic Antarctica Bellingshausen Sea East Antarctica Ice Shelf Totten Ice Shelf West Antarctica Wilkes Land |
op_relation |
http://hdl.handle.net/2115/82661 Communications Earth & Environment, 2(1): 153 http://dx.doi.org/10.1038/s43247-021-00217-4 |
op_doi |
https://doi.org/10.1038/s43247-021-00217-4 |
container_title |
Communications Earth & Environment |
container_volume |
2 |
container_issue |
1 |
_version_ |
1766255460097196032 |