Strong ice-ocean interaction beneath Shirase Glacier Tongue in East Antarctica
Mass loss from the Antarctic ice sheet, Earth's largest freshwater reservoir, results directly in global sea-level rise and Southern Ocean freshening. Observational and modeling studies have demonstrated that ice shelf basal melting, resulting from the inflow of warm water onto the Antarctic co...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/79586 2023-05-15T13:51:33+02:00 Strong ice-ocean interaction beneath Shirase Glacier Tongue in East Antarctica Hirano, Daisuke Tamura, Takeshi Kusahara, Kazuya Ohshima, Kay I. Nicholls, Keith W. Ushio, Shuki Simizu, Daisuke Ono, Kazuya Fujii, Masakazu Nogi, Yoshifumi Aoki, Shigeru http://hdl.handle.net/2115/79586 https://doi.org/10.1038/s41467-020-17527-4 eng eng Nature Publishing Group http://hdl.handle.net/2115/79586 Nature communications, 11(1): 4221 http://dx.doi.org/10.1038/s41467-020-17527-4 450 article fthokunivhus https://doi.org/10.1038/s41467-020-17527-4 2022-11-18T01:06:12Z Mass loss from the Antarctic ice sheet, Earth's largest freshwater reservoir, results directly in global sea-level rise and Southern Ocean freshening. Observational and modeling studies have demonstrated that ice shelf basal melting, resulting from the inflow of warm water onto the Antarctic continental shelf, plays a key role in the ice sheet's mass balance. In recent decades, warm ocean-cryosphere interaction in the Amundsen and Bellingshausen seas has received a great deal of attention. However, except for Totten Ice Shelf, East Antarctic ice shelves typically have cold ice cavities with low basal melt rates. Here we present direct observational evidence of high basal melt rates (7-16myr(-1)) beneath an East Antarctic ice shelf, Shirase Glacier Tongue, driven by southward-flowing warm water guided by a deep continuous trough extending to the continental slope. The strength of the alongshore wind controls the thickness of the inflowing warm water layer and the rate of basal melting. East Antarctic ice shelves typically have cold ice cavities with low basal melt rates. Here the authors direct observational evidence of high basal melt rates beneath Shirase Glacier Tongue in East Antarctica, driven by inflowing warm water guided by a deep continuous trough extending to the continental slope. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves Shirase Glacier Southern Ocean Totten Ice Shelf Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Antarctic East Antarctica Shirase Glacier ENVELOPE(39.000,39.000,-70.333,-70.333) Southern Ocean The Antarctic Nature Communications 11 1 |
institution |
Open Polar |
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Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
450 |
spellingShingle |
450 Hirano, Daisuke Tamura, Takeshi Kusahara, Kazuya Ohshima, Kay I. Nicholls, Keith W. Ushio, Shuki Simizu, Daisuke Ono, Kazuya Fujii, Masakazu Nogi, Yoshifumi Aoki, Shigeru Strong ice-ocean interaction beneath Shirase Glacier Tongue in East Antarctica |
topic_facet |
450 |
description |
Mass loss from the Antarctic ice sheet, Earth's largest freshwater reservoir, results directly in global sea-level rise and Southern Ocean freshening. Observational and modeling studies have demonstrated that ice shelf basal melting, resulting from the inflow of warm water onto the Antarctic continental shelf, plays a key role in the ice sheet's mass balance. In recent decades, warm ocean-cryosphere interaction in the Amundsen and Bellingshausen seas has received a great deal of attention. However, except for Totten Ice Shelf, East Antarctic ice shelves typically have cold ice cavities with low basal melt rates. Here we present direct observational evidence of high basal melt rates (7-16myr(-1)) beneath an East Antarctic ice shelf, Shirase Glacier Tongue, driven by southward-flowing warm water guided by a deep continuous trough extending to the continental slope. The strength of the alongshore wind controls the thickness of the inflowing warm water layer and the rate of basal melting. East Antarctic ice shelves typically have cold ice cavities with low basal melt rates. Here the authors direct observational evidence of high basal melt rates beneath Shirase Glacier Tongue in East Antarctica, driven by inflowing warm water guided by a deep continuous trough extending to the continental slope. |
format |
Article in Journal/Newspaper |
author |
Hirano, Daisuke Tamura, Takeshi Kusahara, Kazuya Ohshima, Kay I. Nicholls, Keith W. Ushio, Shuki Simizu, Daisuke Ono, Kazuya Fujii, Masakazu Nogi, Yoshifumi Aoki, Shigeru |
author_facet |
Hirano, Daisuke Tamura, Takeshi Kusahara, Kazuya Ohshima, Kay I. Nicholls, Keith W. Ushio, Shuki Simizu, Daisuke Ono, Kazuya Fujii, Masakazu Nogi, Yoshifumi Aoki, Shigeru |
author_sort |
Hirano, Daisuke |
title |
Strong ice-ocean interaction beneath Shirase Glacier Tongue in East Antarctica |
title_short |
Strong ice-ocean interaction beneath Shirase Glacier Tongue in East Antarctica |
title_full |
Strong ice-ocean interaction beneath Shirase Glacier Tongue in East Antarctica |
title_fullStr |
Strong ice-ocean interaction beneath Shirase Glacier Tongue in East Antarctica |
title_full_unstemmed |
Strong ice-ocean interaction beneath Shirase Glacier Tongue in East Antarctica |
title_sort |
strong ice-ocean interaction beneath shirase glacier tongue in east antarctica |
publisher |
Nature Publishing Group |
url |
http://hdl.handle.net/2115/79586 https://doi.org/10.1038/s41467-020-17527-4 |
long_lat |
ENVELOPE(39.000,39.000,-70.333,-70.333) |
geographic |
Antarctic East Antarctica Shirase Glacier Southern Ocean The Antarctic |
geographic_facet |
Antarctic East Antarctica Shirase Glacier Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves Shirase Glacier Southern Ocean Totten Ice Shelf |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves Shirase Glacier Southern Ocean Totten Ice Shelf |
op_relation |
http://hdl.handle.net/2115/79586 Nature communications, 11(1): 4221 http://dx.doi.org/10.1038/s41467-020-17527-4 |
op_doi |
https://doi.org/10.1038/s41467-020-17527-4 |
container_title |
Nature Communications |
container_volume |
11 |
container_issue |
1 |
_version_ |
1766255455784402944 |