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, longterm records of jet stream variability are needed. Here we combine two tree-ring records from the British Isles and the no...
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ftpubman:oai:pure.mpg.de:item_2525555 2023-08-27T04:07:54+02:00 Recent enhanced high-summer North Atlantic Jet variability emerges from three-century context Trouet, V. Babst, F. Meko, M. 2018-01-12 application/pdf http://hdl.handle.net/21.11116/0000-0000-2ACF-9 http://hdl.handle.net/21.11116/0000-0000-2AD1-5 http://hdl.handle.net/21.11116/0000-0000-2C2B-0 unknown info:eu-repo/grantAgreement/EC/H2020/640176 info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-017-02699-3 http://hdl.handle.net/21.11116/0000-0000-2ACF-9 http://hdl.handle.net/21.11116/0000-0000-2AD1-5 http://hdl.handle.net/21.11116/0000-0000-2C2B-0 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ Nature Communications info:eu-repo/semantics/article 2018 ftpubman https://doi.org/10.1038/s41467-017-02699-3 2023-08-02T01:02:48Z 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, longterm 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. Article in Journal/Newspaper Arctic North Atlantic Max Planck Society: MPG.PuRe Arctic Pacific Nature Communications 9 1 |
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Max Planck Society: MPG.PuRe |
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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, longterm 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 |
Article in Journal/Newspaper |
author |
Trouet, V. Babst, F. Meko, M. |
spellingShingle |
Trouet, V. Babst, F. Meko, M. Recent enhanced high-summer North Atlantic Jet variability emerges from three-century context |
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 |
publishDate |
2018 |
url |
http://hdl.handle.net/21.11116/0000-0000-2ACF-9 http://hdl.handle.net/21.11116/0000-0000-2AD1-5 http://hdl.handle.net/21.11116/0000-0000-2C2B-0 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic North Atlantic |
genre_facet |
Arctic North Atlantic |
op_source |
Nature Communications |
op_relation |
info:eu-repo/grantAgreement/EC/H2020/640176 info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-017-02699-3 http://hdl.handle.net/21.11116/0000-0000-2ACF-9 http://hdl.handle.net/21.11116/0000-0000-2AD1-5 http://hdl.handle.net/21.11116/0000-0000-2C2B-0 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1038/s41467-017-02699-3 |
container_title |
Nature Communications |
container_volume |
9 |
container_issue |
1 |
_version_ |
1775348621643874304 |