Large ice loss variability at Nioghalvfjerdsfjorden Glacier, Northeast-Greenland
Nioghalvfjerdsfjorden is a major outlet glacier in Northeast-Greenland. Although earlier studies showed that the floating part near the grounding line thinned by 30% between 1999 and 2014, the temporal ice loss evolution, its relation to external forcing and the implications for the grounded ice she...
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ftpubmed:oai:pubmedcentral.nih.gov:6050287 2023-05-15T16:21:06+02:00 Large ice loss variability at Nioghalvfjerdsfjorden Glacier, Northeast-Greenland Mayer, Christoph Schaffer, Janin Hattermann, Tore Floricioiu, Dana Krieger, Lukas Dodd, Paul A. Kanzow, Torsten Licciulli, Carlo Schannwell, Clemens 2018-07-17 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6050287/ http://www.ncbi.nlm.nih.gov/pubmed/30018326 https://doi.org/10.1038/s41467-018-05180-x en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6050287/ http://www.ncbi.nlm.nih.gov/pubmed/30018326 http://dx.doi.org/10.1038/s41467-018-05180-x © The Author(s) 2018 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 2018 ftpubmed https://doi.org/10.1038/s41467-018-05180-x 2018-07-29T00:18:30Z Nioghalvfjerdsfjorden is a major outlet glacier in Northeast-Greenland. Although earlier studies showed that the floating part near the grounding line thinned by 30% between 1999 and 2014, the temporal ice loss evolution, its relation to external forcing and the implications for the grounded ice sheet remain largely unclear. By combining observations of surface features, ice thickness and bedrock data, we find that the ice shelf mass balance has been out of equilibrium since 2001, with large variations of the thinning rates on annual/multiannual time scales. Changes in ice flux and surface ablation are too small to produce this variability. An increased ocean heat flux is the most plausible cause of the observed thinning. For sustained environmental conditions, the ice shelf will lose large parts of its area within a few decades and ice modeling shows a significant, but locally restricted thinning upstream of the grounding line in response. Text glacier Greenland Ice Sheet Ice Shelf Nioghalvfjerdsfjorden PubMed Central (PMC) Greenland Nioghalvfjerdsfjorden ENVELOPE(-21.500,-21.500,79.500,79.500) Nature Communications 9 1 |
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Article Mayer, Christoph Schaffer, Janin Hattermann, Tore Floricioiu, Dana Krieger, Lukas Dodd, Paul A. Kanzow, Torsten Licciulli, Carlo Schannwell, Clemens Large ice loss variability at Nioghalvfjerdsfjorden Glacier, Northeast-Greenland |
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Article |
description |
Nioghalvfjerdsfjorden is a major outlet glacier in Northeast-Greenland. Although earlier studies showed that the floating part near the grounding line thinned by 30% between 1999 and 2014, the temporal ice loss evolution, its relation to external forcing and the implications for the grounded ice sheet remain largely unclear. By combining observations of surface features, ice thickness and bedrock data, we find that the ice shelf mass balance has been out of equilibrium since 2001, with large variations of the thinning rates on annual/multiannual time scales. Changes in ice flux and surface ablation are too small to produce this variability. An increased ocean heat flux is the most plausible cause of the observed thinning. For sustained environmental conditions, the ice shelf will lose large parts of its area within a few decades and ice modeling shows a significant, but locally restricted thinning upstream of the grounding line in response. |
format |
Text |
author |
Mayer, Christoph Schaffer, Janin Hattermann, Tore Floricioiu, Dana Krieger, Lukas Dodd, Paul A. Kanzow, Torsten Licciulli, Carlo Schannwell, Clemens |
author_facet |
Mayer, Christoph Schaffer, Janin Hattermann, Tore Floricioiu, Dana Krieger, Lukas Dodd, Paul A. Kanzow, Torsten Licciulli, Carlo Schannwell, Clemens |
author_sort |
Mayer, Christoph |
title |
Large ice loss variability at Nioghalvfjerdsfjorden Glacier, Northeast-Greenland |
title_short |
Large ice loss variability at Nioghalvfjerdsfjorden Glacier, Northeast-Greenland |
title_full |
Large ice loss variability at Nioghalvfjerdsfjorden Glacier, Northeast-Greenland |
title_fullStr |
Large ice loss variability at Nioghalvfjerdsfjorden Glacier, Northeast-Greenland |
title_full_unstemmed |
Large ice loss variability at Nioghalvfjerdsfjorden Glacier, Northeast-Greenland |
title_sort |
large ice loss variability at nioghalvfjerdsfjorden glacier, northeast-greenland |
publisher |
Nature Publishing Group UK |
publishDate |
2018 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6050287/ http://www.ncbi.nlm.nih.gov/pubmed/30018326 https://doi.org/10.1038/s41467-018-05180-x |
long_lat |
ENVELOPE(-21.500,-21.500,79.500,79.500) |
geographic |
Greenland Nioghalvfjerdsfjorden |
geographic_facet |
Greenland Nioghalvfjerdsfjorden |
genre |
glacier Greenland Ice Sheet Ice Shelf Nioghalvfjerdsfjorden |
genre_facet |
glacier Greenland Ice Sheet Ice Shelf Nioghalvfjerdsfjorden |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6050287/ http://www.ncbi.nlm.nih.gov/pubmed/30018326 http://dx.doi.org/10.1038/s41467-018-05180-x |
op_rights |
© The Author(s) 2018 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/s41467-018-05180-x |
container_title |
Nature Communications |
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9 |
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1 |
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1766009113984106496 |