Summer atmospheric circulation over Greenland in response to Arctic amplification and diminished spring snow cover
The exceptional atmospheric conditions that have accelerated Greenland Ice Sheet mass loss in recent decades have been repeatedly recognized as a possible dynamical response to Arctic amplification. Here, we present evidence of two potentially synergistic mechanisms linking high-latitude warming to...
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ftpubmed:oai:pubmedcentral.nih.gov:10290063 2023-07-23T04:17:13+02:00 Summer atmospheric circulation over Greenland in response to Arctic amplification and diminished spring snow cover Preece, Jonathon R. Mote, Thomas L. Cohen, Judah Wachowicz, Lori J. Knox, John A. Tedesco, Marco Kooperman, Gabriel J. 2023-06-23 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10290063/ http://www.ncbi.nlm.nih.gov/pubmed/37353537 https://doi.org/10.1038/s41467-023-39466-6 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10290063/ http://www.ncbi.nlm.nih.gov/pubmed/37353537 http://dx.doi.org/10.1038/s41467-023-39466-6 © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) . Nat Commun Article Text 2023 ftpubmed https://doi.org/10.1038/s41467-023-39466-6 2023-07-02T00:42:26Z The exceptional atmospheric conditions that have accelerated Greenland Ice Sheet mass loss in recent decades have been repeatedly recognized as a possible dynamical response to Arctic amplification. Here, we present evidence of two potentially synergistic mechanisms linking high-latitude warming to the observed increase in Greenland blocking. Consistent with a prominent hypothesis associating Arctic amplification and persistent weather extremes, we show that the summer atmospheric circulation over the North Atlantic has become wavier and link this wavier flow to more prevalent Greenland blocking. While a concomitant decline in terrestrial snow cover has likely contributed to this mechanism by further amplifying warming at high latitudes, we also show that there is a direct stationary Rossby wave response to low spring North American snow cover that enforces an anomalous anticyclone over Greenland, thus helping to anchor the ridge over Greenland in this wavier atmospheric state. Text Arctic Greenland Ice Sheet North Atlantic PubMed Central (PMC) Arctic Greenland Nature Communications 14 1 |
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Article Preece, Jonathon R. Mote, Thomas L. Cohen, Judah Wachowicz, Lori J. Knox, John A. Tedesco, Marco Kooperman, Gabriel J. Summer atmospheric circulation over Greenland in response to Arctic amplification and diminished spring snow cover |
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Article |
description |
The exceptional atmospheric conditions that have accelerated Greenland Ice Sheet mass loss in recent decades have been repeatedly recognized as a possible dynamical response to Arctic amplification. Here, we present evidence of two potentially synergistic mechanisms linking high-latitude warming to the observed increase in Greenland blocking. Consistent with a prominent hypothesis associating Arctic amplification and persistent weather extremes, we show that the summer atmospheric circulation over the North Atlantic has become wavier and link this wavier flow to more prevalent Greenland blocking. While a concomitant decline in terrestrial snow cover has likely contributed to this mechanism by further amplifying warming at high latitudes, we also show that there is a direct stationary Rossby wave response to low spring North American snow cover that enforces an anomalous anticyclone over Greenland, thus helping to anchor the ridge over Greenland in this wavier atmospheric state. |
format |
Text |
author |
Preece, Jonathon R. Mote, Thomas L. Cohen, Judah Wachowicz, Lori J. Knox, John A. Tedesco, Marco Kooperman, Gabriel J. |
author_facet |
Preece, Jonathon R. Mote, Thomas L. Cohen, Judah Wachowicz, Lori J. Knox, John A. Tedesco, Marco Kooperman, Gabriel J. |
author_sort |
Preece, Jonathon R. |
title |
Summer atmospheric circulation over Greenland in response to Arctic amplification and diminished spring snow cover |
title_short |
Summer atmospheric circulation over Greenland in response to Arctic amplification and diminished spring snow cover |
title_full |
Summer atmospheric circulation over Greenland in response to Arctic amplification and diminished spring snow cover |
title_fullStr |
Summer atmospheric circulation over Greenland in response to Arctic amplification and diminished spring snow cover |
title_full_unstemmed |
Summer atmospheric circulation over Greenland in response to Arctic amplification and diminished spring snow cover |
title_sort |
summer atmospheric circulation over greenland in response to arctic amplification and diminished spring snow cover |
publisher |
Nature Publishing Group UK |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10290063/ http://www.ncbi.nlm.nih.gov/pubmed/37353537 https://doi.org/10.1038/s41467-023-39466-6 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland Ice Sheet North Atlantic |
genre_facet |
Arctic Greenland Ice Sheet North Atlantic |
op_source |
Nat Commun |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10290063/ http://www.ncbi.nlm.nih.gov/pubmed/37353537 http://dx.doi.org/10.1038/s41467-023-39466-6 |
op_rights |
© The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) . |
op_doi |
https://doi.org/10.1038/s41467-023-39466-6 |
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Nature Communications |
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14 |
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1 |
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1772178585021317120 |