Large interannual variability in supraglacial lakes around East Antarctica
Antarctic supraglacial lakes (SGLs) have been linked to ice shelf collapse and the subsequent acceleration of inland ice flow, but observations of SGLs remain relatively scarce and their interannual variability is largely unknown. This makes it difficult to assess whether some ice shelves are close...
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ftunivdurham:oai:dro.dur.ac.uk.OAI2:35897 2023-05-15T13:36:39+02:00 Large interannual variability in supraglacial lakes around East Antarctica Arthur, Jennifer F. Stokes, Chris R. Jamieson, Stewart S. R. Rachel Carr, J. Leeson, Amber A. Verjans, Vincent 2022 application/pdf http://dro.dur.ac.uk/35897/ http://dro.dur.ac.uk/35897/1/35897.pdf https://doi.org/10.1038/s41467-022-29385-3 unknown Springer dro:35897 issn:2041-1723 doi:10.1038/s41467-022-29385-3 http://dro.dur.ac.uk/35897/ https://doi.org/10.1038/s41467-022-29385-3 http://dro.dur.ac.uk/35897/1/35897.pdf 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 Nature Communications, 2022, Vol.13(1) [Peer Reviewed Journal] Article PeerReviewed 2022 ftunivdurham https://doi.org/10.1038/s41467-022-29385-3 2023-01-12T23:25:57Z Antarctic supraglacial lakes (SGLs) have been linked to ice shelf collapse and the subsequent acceleration of inland ice flow, but observations of SGLs remain relatively scarce and their interannual variability is largely unknown. This makes it difficult to assess whether some ice shelves are close to thresholds of stability under climate warming. Here, we present the first observations of SGLs across the entire East Antarctic Ice Sheet over multiple melt seasons (2014–2020). Interannual variability in SGL volume is >200% on some ice shelves, but patterns are highly asynchronous. More extensive, deeper SGLs correlate with higher summer (December-January-February) air temperatures, but comparisons with modelled melt and runoff are complex. However, we find that modelled January melt and the ratio of November firn air content to summer melt are important predictors of SGL volume on some potentially vulnerable ice shelves, suggesting large increases in SGLs should be expected under future atmospheric warming. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves Durham University: Durham Research Online Antarctic East Antarctic Ice Sheet East Antarctica Nature Communications 13 1 |
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Durham University: Durham Research Online |
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description |
Antarctic supraglacial lakes (SGLs) have been linked to ice shelf collapse and the subsequent acceleration of inland ice flow, but observations of SGLs remain relatively scarce and their interannual variability is largely unknown. This makes it difficult to assess whether some ice shelves are close to thresholds of stability under climate warming. Here, we present the first observations of SGLs across the entire East Antarctic Ice Sheet over multiple melt seasons (2014–2020). Interannual variability in SGL volume is >200% on some ice shelves, but patterns are highly asynchronous. More extensive, deeper SGLs correlate with higher summer (December-January-February) air temperatures, but comparisons with modelled melt and runoff are complex. However, we find that modelled January melt and the ratio of November firn air content to summer melt are important predictors of SGL volume on some potentially vulnerable ice shelves, suggesting large increases in SGLs should be expected under future atmospheric warming. |
format |
Article in Journal/Newspaper |
author |
Arthur, Jennifer F. Stokes, Chris R. Jamieson, Stewart S. R. Rachel Carr, J. Leeson, Amber A. Verjans, Vincent |
spellingShingle |
Arthur, Jennifer F. Stokes, Chris R. Jamieson, Stewart S. R. Rachel Carr, J. Leeson, Amber A. Verjans, Vincent Large interannual variability in supraglacial lakes around East Antarctica |
author_facet |
Arthur, Jennifer F. Stokes, Chris R. Jamieson, Stewart S. R. Rachel Carr, J. Leeson, Amber A. Verjans, Vincent |
author_sort |
Arthur, Jennifer F. |
title |
Large interannual variability in supraglacial lakes around East Antarctica |
title_short |
Large interannual variability in supraglacial lakes around East Antarctica |
title_full |
Large interannual variability in supraglacial lakes around East Antarctica |
title_fullStr |
Large interannual variability in supraglacial lakes around East Antarctica |
title_full_unstemmed |
Large interannual variability in supraglacial lakes around East Antarctica |
title_sort |
large interannual variability in supraglacial lakes around east antarctica |
publisher |
Springer |
publishDate |
2022 |
url |
http://dro.dur.ac.uk/35897/ http://dro.dur.ac.uk/35897/1/35897.pdf https://doi.org/10.1038/s41467-022-29385-3 |
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_source |
Nature Communications, 2022, Vol.13(1) [Peer Reviewed Journal] |
op_relation |
dro:35897 issn:2041-1723 doi:10.1038/s41467-022-29385-3 http://dro.dur.ac.uk/35897/ https://doi.org/10.1038/s41467-022-29385-3 http://dro.dur.ac.uk/35897/1/35897.pdf |
op_rights |
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/s41467-022-29385-3 |
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Nature Communications |
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13 |
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1 |
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