Recent enhanced high-summer North Atlantic Jet variability emerges from three-century context
A recent increase in mid-latitude extreme weather events has been linked to Northern Hemisphere polar jet stream anomalies. To put recent trends in a historical perspective, long-term records of jet stream variability are needed. Here we combine two tree-ring records from the British Isles and the n...
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ftpubmed:oai:pubmedcentral.nih.gov:5766518 2023-05-15T15:04:13+02:00 Recent enhanced high-summer North Atlantic Jet variability emerges from three-century context Trouet, V. Babst, F. Meko, M. 2018-01-12 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5766518/ http://www.ncbi.nlm.nih.gov/pubmed/29330475 https://doi.org/10.1038/s41467-017-02699-3 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5766518/ http://www.ncbi.nlm.nih.gov/pubmed/29330475 http://dx.doi.org/10.1038/s41467-017-02699-3 © 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/s41467-017-02699-3 2018-01-21T01:18:40Z A recent increase in mid-latitude extreme weather events has been linked to Northern Hemisphere polar jet stream anomalies. To put recent trends in a historical perspective, long-term records of jet stream variability are needed. Here we combine two tree-ring records from the British Isles and the northeastern Mediterranean to reconstruct variability in the latitudinal position of the high-summer North Atlantic Jet (NAJ) back to 1725 CE. We find that northward NAJ anomalies have resulted in heatwaves and droughts in northwestern Europe and southward anomalies have promoted wildfires in southeastern Europe. We further find an unprecedented increase in NAJ variance since the 1960s, which co-occurs with enhanced late twentieth century variance in the Central and North Pacific Basin. Our results suggest increased late twentieth century interannual meridional jet stream variability and support more sinuous jet stream patterns and quasi-resonant amplification as potential dynamic pathways for Arctic warming to influence mid-latitude weather. Text Arctic North Atlantic PubMed Central (PMC) Arctic Pacific Nature Communications 9 1 |
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Article Trouet, V. Babst, F. Meko, M. Recent enhanced high-summer North Atlantic Jet variability emerges from three-century context |
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description |
A recent increase in mid-latitude extreme weather events has been linked to Northern Hemisphere polar jet stream anomalies. To put recent trends in a historical perspective, long-term records of jet stream variability are needed. Here we combine two tree-ring records from the British Isles and the northeastern Mediterranean to reconstruct variability in the latitudinal position of the high-summer North Atlantic Jet (NAJ) back to 1725 CE. We find that northward NAJ anomalies have resulted in heatwaves and droughts in northwestern Europe and southward anomalies have promoted wildfires in southeastern Europe. We further find an unprecedented increase in NAJ variance since the 1960s, which co-occurs with enhanced late twentieth century variance in the Central and North Pacific Basin. Our results suggest increased late twentieth century interannual meridional jet stream variability and support more sinuous jet stream patterns and quasi-resonant amplification as potential dynamic pathways for Arctic warming to influence mid-latitude weather. |
format |
Text |
author |
Trouet, V. Babst, F. Meko, M. |
author_facet |
Trouet, V. Babst, F. Meko, M. |
author_sort |
Trouet, V. |
title |
Recent enhanced high-summer North Atlantic Jet variability emerges from three-century context |
title_short |
Recent enhanced high-summer North Atlantic Jet variability emerges from three-century context |
title_full |
Recent enhanced high-summer North Atlantic Jet variability emerges from three-century context |
title_fullStr |
Recent enhanced high-summer North Atlantic Jet variability emerges from three-century context |
title_full_unstemmed |
Recent enhanced high-summer North Atlantic Jet variability emerges from three-century context |
title_sort |
recent enhanced high-summer north atlantic jet variability emerges from three-century context |
publisher |
Nature Publishing Group UK |
publishDate |
2018 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5766518/ http://www.ncbi.nlm.nih.gov/pubmed/29330475 https://doi.org/10.1038/s41467-017-02699-3 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic North Atlantic |
genre_facet |
Arctic North Atlantic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5766518/ http://www.ncbi.nlm.nih.gov/pubmed/29330475 http://dx.doi.org/10.1038/s41467-017-02699-3 |
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/. |
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CC-BY |
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https://doi.org/10.1038/s41467-017-02699-3 |
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Nature Communications |
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9 |
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1 |
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