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...
Published in: | Nature Communications |
---|---|
Main Authors: | , , , , , , , , , , |
Format: | Text |
Language: | English |
Published: |
Nature Publishing Group UK
2020
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7445286/ http://www.ncbi.nlm.nih.gov/pubmed/32839464 https://doi.org/10.1038/s41467-020-17527-4 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:7445286 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:7445286 2023-05-15T13:33:01+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 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7445286/ http://www.ncbi.nlm.nih.gov/pubmed/32839464 https://doi.org/10.1038/s41467-020-17527-4 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7445286/ http://www.ncbi.nlm.nih.gov/pubmed/32839464 http://dx.doi.org/10.1038/s41467-020-17527-4 © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Nat Commun Article Text 2020 ftpubmed https://doi.org/10.1038/s41467-020-17527-4 2020-09-06T00:37:09Z 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. Text Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves Shirase Glacier Southern Ocean Totten Ice Shelf PubMed Central (PMC) 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 |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Article |
spellingShingle |
Article 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 |
Article |
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 |
Text |
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 UK |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7445286/ http://www.ncbi.nlm.nih.gov/pubmed/32839464 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_source |
Nat Commun |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7445286/ http://www.ncbi.nlm.nih.gov/pubmed/32839464 http://dx.doi.org/10.1038/s41467-020-17527-4 |
op_rights |
© The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
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_ |
1766037910364094464 |