Subseasonal relationship between Arctic and Eurasian surface air temperature
The subseasonal relationship between Arctic and Eurasian surface air temperature (SAT) is re-examined using reanalysis data. Consistent with previous studies, a significant negative correlation is observed in cold season from November to February, but with a local minimum in late December. This rela...
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ftpubmed:oai:pubmedcentral.nih.gov:7892886 2023-05-15T14:36:00+02:00 Subseasonal relationship between Arctic and Eurasian surface air temperature Kim, Hye-Jin Son, Seok-Woo Moon, Woosok Kug, Jong-Seong Hwang, Jaeyoung 2021-02-18 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7892886/ http://www.ncbi.nlm.nih.gov/pubmed/33603052 https://doi.org/10.1038/s41598-021-83486-5 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7892886/ http://www.ncbi.nlm.nih.gov/pubmed/33603052 http://dx.doi.org/10.1038/s41598-021-83486-5 © The Author(s) 2021 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Sci Rep Article Text 2021 ftpubmed https://doi.org/10.1038/s41598-021-83486-5 2021-02-28T01:33:24Z The subseasonal relationship between Arctic and Eurasian surface air temperature (SAT) is re-examined using reanalysis data. Consistent with previous studies, a significant negative correlation is observed in cold season from November to February, but with a local minimum in late December. This relationship is dominated not only by the warm Arctic-cold Eurasia (WACE) pattern, which becomes more frequent during the last two decades, but also by the cold Arctic-warm Eurasia (CAWE) pattern. The budget analyses reveal that both WACE and CAWE patterns are primarily driven by the temperature advection associated with sea level pressure anomaly over the Ural region, partly cancelled by the diabatic heating. It is further found that, although the anticyclonic anomaly of WACE pattern mostly represents the Ural blocking, about 20% of WACE cases are associated with non-blocking high pressure systems. This result indicates that the Ural blocking is not a necessary condition for the WACE pattern, highlighting the importance of transient weather systems in the subseasonal Arctic-Eurasian SAT co-variability. Text Arctic PubMed Central (PMC) Arctic Scientific Reports 11 1 |
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Article Kim, Hye-Jin Son, Seok-Woo Moon, Woosok Kug, Jong-Seong Hwang, Jaeyoung Subseasonal relationship between Arctic and Eurasian surface air temperature |
topic_facet |
Article |
description |
The subseasonal relationship between Arctic and Eurasian surface air temperature (SAT) is re-examined using reanalysis data. Consistent with previous studies, a significant negative correlation is observed in cold season from November to February, but with a local minimum in late December. This relationship is dominated not only by the warm Arctic-cold Eurasia (WACE) pattern, which becomes more frequent during the last two decades, but also by the cold Arctic-warm Eurasia (CAWE) pattern. The budget analyses reveal that both WACE and CAWE patterns are primarily driven by the temperature advection associated with sea level pressure anomaly over the Ural region, partly cancelled by the diabatic heating. It is further found that, although the anticyclonic anomaly of WACE pattern mostly represents the Ural blocking, about 20% of WACE cases are associated with non-blocking high pressure systems. This result indicates that the Ural blocking is not a necessary condition for the WACE pattern, highlighting the importance of transient weather systems in the subseasonal Arctic-Eurasian SAT co-variability. |
format |
Text |
author |
Kim, Hye-Jin Son, Seok-Woo Moon, Woosok Kug, Jong-Seong Hwang, Jaeyoung |
author_facet |
Kim, Hye-Jin Son, Seok-Woo Moon, Woosok Kug, Jong-Seong Hwang, Jaeyoung |
author_sort |
Kim, Hye-Jin |
title |
Subseasonal relationship between Arctic and Eurasian surface air temperature |
title_short |
Subseasonal relationship between Arctic and Eurasian surface air temperature |
title_full |
Subseasonal relationship between Arctic and Eurasian surface air temperature |
title_fullStr |
Subseasonal relationship between Arctic and Eurasian surface air temperature |
title_full_unstemmed |
Subseasonal relationship between Arctic and Eurasian surface air temperature |
title_sort |
subseasonal relationship between arctic and eurasian surface air temperature |
publisher |
Nature Publishing Group UK |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7892886/ http://www.ncbi.nlm.nih.gov/pubmed/33603052 https://doi.org/10.1038/s41598-021-83486-5 |
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Arctic |
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Arctic |
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Arctic |
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Arctic |
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Sci Rep |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7892886/ http://www.ncbi.nlm.nih.gov/pubmed/33603052 http://dx.doi.org/10.1038/s41598-021-83486-5 |
op_rights |
© The Author(s) 2021 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/. |
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CC-BY |
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https://doi.org/10.1038/s41598-021-83486-5 |
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Scientific Reports |
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11 |
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1 |
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