Widespread distribution of supraglacial lakes around the margin of the East Antarctic Ice Sheet
Supraglacial lakes are important to ice sheet mass balance because their development and drainage has been linked to changes in ice flow velocity and ice shelf disintegration. However, little is known about their distribution on the world’s largest ice sheet in East Antarctica. Here, we use ~5 milli...
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ftpubmed:oai:pubmedcentral.nih.gov:6761196 2023-05-15T13:45:57+02:00 Widespread distribution of supraglacial lakes around the margin of the East Antarctic Ice Sheet Stokes, Chris R. Sanderson, Jack E. Miles, Bertie W. J. Jamieson, Stewart S. R. Leeson, Amber A. 2019-09-25 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6761196/ http://www.ncbi.nlm.nih.gov/pubmed/31554854 https://doi.org/10.1038/s41598-019-50343-5 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6761196/ http://www.ncbi.nlm.nih.gov/pubmed/31554854 http://dx.doi.org/10.1038/s41598-019-50343-5 © The Author(s) 2019 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 Article Text 2019 ftpubmed https://doi.org/10.1038/s41598-019-50343-5 2019-11-17T01:15:24Z Supraglacial lakes are important to ice sheet mass balance because their development and drainage has been linked to changes in ice flow velocity and ice shelf disintegration. However, little is known about their distribution on the world’s largest ice sheet in East Antarctica. Here, we use ~5 million km(2) of high-resolution satellite imagery to identify >65,000 lakes (>1,300 km(2)) that formed around the peak of the melt season in January 2017. Lakes occur in most marginal areas where they typically develop at low elevations (<100 m) and on low surface slopes (<1°), but they can exist 500 km inland and at elevations >1500 m. We find that lakes often cluster a few kilometres down-ice from grounding lines and ~60% (>80% by area) develop on ice shelves, including some potentially vulnerable to collapse driven by lake-induced hydro-fracturing. This suggests that parts of the ice sheet may be highly sensitive to climate warming. Text Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves PubMed Central (PMC) Antarctic East Antarctic Ice Sheet East Antarctica Scientific Reports 9 1 |
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Article Stokes, Chris R. Sanderson, Jack E. Miles, Bertie W. J. Jamieson, Stewart S. R. Leeson, Amber A. Widespread distribution of supraglacial lakes around the margin of the East Antarctic Ice Sheet |
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Article |
description |
Supraglacial lakes are important to ice sheet mass balance because their development and drainage has been linked to changes in ice flow velocity and ice shelf disintegration. However, little is known about their distribution on the world’s largest ice sheet in East Antarctica. Here, we use ~5 million km(2) of high-resolution satellite imagery to identify >65,000 lakes (>1,300 km(2)) that formed around the peak of the melt season in January 2017. Lakes occur in most marginal areas where they typically develop at low elevations (<100 m) and on low surface slopes (<1°), but they can exist 500 km inland and at elevations >1500 m. We find that lakes often cluster a few kilometres down-ice from grounding lines and ~60% (>80% by area) develop on ice shelves, including some potentially vulnerable to collapse driven by lake-induced hydro-fracturing. This suggests that parts of the ice sheet may be highly sensitive to climate warming. |
format |
Text |
author |
Stokes, Chris R. Sanderson, Jack E. Miles, Bertie W. J. Jamieson, Stewart S. R. Leeson, Amber A. |
author_facet |
Stokes, Chris R. Sanderson, Jack E. Miles, Bertie W. J. Jamieson, Stewart S. R. Leeson, Amber A. |
author_sort |
Stokes, Chris R. |
title |
Widespread distribution of supraglacial lakes around the margin of the East Antarctic Ice Sheet |
title_short |
Widespread distribution of supraglacial lakes around the margin of the East Antarctic Ice Sheet |
title_full |
Widespread distribution of supraglacial lakes around the margin of the East Antarctic Ice Sheet |
title_fullStr |
Widespread distribution of supraglacial lakes around the margin of the East Antarctic Ice Sheet |
title_full_unstemmed |
Widespread distribution of supraglacial lakes around the margin of the East Antarctic Ice Sheet |
title_sort |
widespread distribution of supraglacial lakes around the margin of the east antarctic ice sheet |
publisher |
Nature Publishing Group UK |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6761196/ http://www.ncbi.nlm.nih.gov/pubmed/31554854 https://doi.org/10.1038/s41598-019-50343-5 |
geographic |
Antarctic East Antarctic Ice Sheet East Antarctica |
geographic_facet |
Antarctic East Antarctic Ice Sheet East Antarctica |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6761196/ http://www.ncbi.nlm.nih.gov/pubmed/31554854 http://dx.doi.org/10.1038/s41598-019-50343-5 |
op_rights |
© The Author(s) 2019 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/s41598-019-50343-5 |
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Scientific Reports |
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9 |
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