Recent strengthening of the stratospheric Arctic vortex response to warming in the central North Pacific
The stratospheric Arctic vortex (SAV) plays a critical role in forecasting cold winters in northern mid-latitudes. Its influence on the tropospheric mid- and high-latitudes has attracted growing attention in recent years. However, the trend in the SAV during the recent two decades is still unknown....
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ftpubmed:oai:pubmedcentral.nih.gov:5923267 2023-05-15T13:14:56+02:00 Recent strengthening of the stratospheric Arctic vortex response to warming in the central North Pacific Hu, Dingzhu Guan, Zhaoyong Tian, Wenshou Ren, Rongcai 2018-04-27 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5923267/ http://www.ncbi.nlm.nih.gov/pubmed/29703910 https://doi.org/10.1038/s41467-018-04138-3 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5923267/ http://www.ncbi.nlm.nih.gov/pubmed/29703910 http://dx.doi.org/10.1038/s41467-018-04138-3 © 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/s41467-018-04138-3 2018-05-06T00:36:09Z The stratospheric Arctic vortex (SAV) plays a critical role in forecasting cold winters in northern mid-latitudes. Its influence on the tropospheric mid- and high-latitudes has attracted growing attention in recent years. However, the trend in the SAV during the recent two decades is still unknown. Here, using three reanalysis datasets, we found that the SAV intensity during 1998–2016 has a strengthening trend, in contrast to the weakening trend before that period. Approximately 25% of this strengthening is contributed by the warming of sea-surface temperature (SST) over the central North Pacific (CNP). Observational analysis and model experiments show that the warmed CNP SST tends to weaken the Aleutian low, subsequently weakening the upward propagation of wavenumber-1 planetary wave flux, further strengthening the SAV. This strengthened SAV suggests important implications in understanding the Arctic warming amplification and in predicting the surface temperature changes over the northern continents. Text aleutian low Arctic PubMed Central (PMC) Arctic Pacific Sav’ ENVELOPE(156.400,156.400,68.817,68.817) Nature Communications 9 1 |
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Article Hu, Dingzhu Guan, Zhaoyong Tian, Wenshou Ren, Rongcai Recent strengthening of the stratospheric Arctic vortex response to warming in the central North Pacific |
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Article |
description |
The stratospheric Arctic vortex (SAV) plays a critical role in forecasting cold winters in northern mid-latitudes. Its influence on the tropospheric mid- and high-latitudes has attracted growing attention in recent years. However, the trend in the SAV during the recent two decades is still unknown. Here, using three reanalysis datasets, we found that the SAV intensity during 1998–2016 has a strengthening trend, in contrast to the weakening trend before that period. Approximately 25% of this strengthening is contributed by the warming of sea-surface temperature (SST) over the central North Pacific (CNP). Observational analysis and model experiments show that the warmed CNP SST tends to weaken the Aleutian low, subsequently weakening the upward propagation of wavenumber-1 planetary wave flux, further strengthening the SAV. This strengthened SAV suggests important implications in understanding the Arctic warming amplification and in predicting the surface temperature changes over the northern continents. |
format |
Text |
author |
Hu, Dingzhu Guan, Zhaoyong Tian, Wenshou Ren, Rongcai |
author_facet |
Hu, Dingzhu Guan, Zhaoyong Tian, Wenshou Ren, Rongcai |
author_sort |
Hu, Dingzhu |
title |
Recent strengthening of the stratospheric Arctic vortex response to warming in the central North Pacific |
title_short |
Recent strengthening of the stratospheric Arctic vortex response to warming in the central North Pacific |
title_full |
Recent strengthening of the stratospheric Arctic vortex response to warming in the central North Pacific |
title_fullStr |
Recent strengthening of the stratospheric Arctic vortex response to warming in the central North Pacific |
title_full_unstemmed |
Recent strengthening of the stratospheric Arctic vortex response to warming in the central North Pacific |
title_sort |
recent strengthening of the stratospheric arctic vortex response to warming in the central north pacific |
publisher |
Nature Publishing Group UK |
publishDate |
2018 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5923267/ http://www.ncbi.nlm.nih.gov/pubmed/29703910 https://doi.org/10.1038/s41467-018-04138-3 |
long_lat |
ENVELOPE(156.400,156.400,68.817,68.817) |
geographic |
Arctic Pacific Sav’ |
geographic_facet |
Arctic Pacific Sav’ |
genre |
aleutian low Arctic |
genre_facet |
aleutian low Arctic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5923267/ http://www.ncbi.nlm.nih.gov/pubmed/29703910 http://dx.doi.org/10.1038/s41467-018-04138-3 |
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 |
op_doi |
https://doi.org/10.1038/s41467-018-04138-3 |
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Nature Communications |
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9 |
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1 |
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