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 contine...
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ftnerc:oai:nora.nerc.ac.uk:528401 2023-05-15T13:41:45+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 2020-08-24 text http://nora.nerc.ac.uk/id/eprint/528401/ https://nora.nerc.ac.uk/id/eprint/528401/1/s41467-020-17527-4.pdf https://www.nature.com/articles/s41467-020-17527-4 en eng Nature Research https://nora.nerc.ac.uk/id/eprint/528401/1/s41467-020-17527-4.pdf Hirano, Daisuke; Tamura, Takeshi; Kusahara, Kazuya; Ohshima, Kay I.; Nicholls, Keith W. orcid:0000-0002-2188-4509 Ushio, Shuki; Simizu, Daisuke; Ono, Kazuya; Fujii, Masakazu; Nogi, Yoshifumi; Aoki, Shigeru. 2020 Strong ice-ocean interaction beneath Shirase Glacier Tongue in East Antarctica. Nature Communications, 11 (1), 4221. https://doi.org/10.1038/s41467-020-17527-4 <https://doi.org/10.1038/s41467-020-17527-4> cc_by_4 CC-BY Publication - Article PeerReviewed 2020 ftnerc https://doi.org/10.1038/s41467-020-17527-4 2023-02-04T19:51:03Z 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 (7–16 m yr−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. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves Shirase Glacier Southern Ocean Totten Ice Shelf Natural Environment Research Council: NERC Open Research Archive Antarctic Southern Ocean The Antarctic East Antarctica Shirase Glacier ENVELOPE(39.000,39.000,-70.333,-70.333) Nature Communications 11 1 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
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 (7–16 m yr−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. |
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 |
spellingShingle |
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 |
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 Research |
publishDate |
2020 |
url |
http://nora.nerc.ac.uk/id/eprint/528401/ https://nora.nerc.ac.uk/id/eprint/528401/1/s41467-020-17527-4.pdf https://www.nature.com/articles/s41467-020-17527-4 |
long_lat |
ENVELOPE(39.000,39.000,-70.333,-70.333) |
geographic |
Antarctic Southern Ocean The Antarctic East Antarctica Shirase Glacier |
geographic_facet |
Antarctic Southern Ocean The Antarctic East Antarctica Shirase Glacier |
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 |
https://nora.nerc.ac.uk/id/eprint/528401/1/s41467-020-17527-4.pdf Hirano, Daisuke; Tamura, Takeshi; Kusahara, Kazuya; Ohshima, Kay I.; Nicholls, Keith W. orcid:0000-0002-2188-4509 Ushio, Shuki; Simizu, Daisuke; Ono, Kazuya; Fujii, Masakazu; Nogi, Yoshifumi; Aoki, Shigeru. 2020 Strong ice-ocean interaction beneath Shirase Glacier Tongue in East Antarctica. Nature Communications, 11 (1), 4221. https://doi.org/10.1038/s41467-020-17527-4 <https://doi.org/10.1038/s41467-020-17527-4> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41467-020-17527-4 |
container_title |
Nature Communications |
container_volume |
11 |
container_issue |
1 |
_version_ |
1766157021478912000 |