Subseasonal relationship between Arctic and Eurasian surface air temperature
Abstract 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....
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2021
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Online Access: | http://dx.doi.org/10.1038/s41598-021-83486-5 http://www.nature.com/articles/s41598-021-83486-5.pdf http://www.nature.com/articles/s41598-021-83486-5 |
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crspringernat:10.1038/s41598-021-83486-5 2023-05-15T14:36:01+02:00 Subseasonal relationship between Arctic and Eurasian surface air temperature Kim, Hye-Jin Son, Seok-Woo Moon, Woosok Kug, Jong-Seong Hwang, Jaeyoung the Korea Meteorological Administration Research and Development Program the International Research and Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT of Korea 2021 http://dx.doi.org/10.1038/s41598-021-83486-5 http://www.nature.com/articles/s41598-021-83486-5.pdf http://www.nature.com/articles/s41598-021-83486-5 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 11, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2021 crspringernat https://doi.org/10.1038/s41598-021-83486-5 2022-01-04T09:04:55Z Abstract 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. Article in Journal/Newspaper Arctic Springer Nature (via Crossref) Arctic Scientific Reports 11 1 |
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Open Polar |
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Springer Nature (via Crossref) |
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crspringernat |
language |
English |
topic |
Multidisciplinary |
spellingShingle |
Multidisciplinary Kim, Hye-Jin Son, Seok-Woo Moon, Woosok Kug, Jong-Seong Hwang, Jaeyoung Subseasonal relationship between Arctic and Eurasian surface air temperature |
topic_facet |
Multidisciplinary |
description |
Abstract 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. |
author2 |
the Korea Meteorological Administration Research and Development Program the International Research and Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT of Korea |
format |
Article in Journal/Newspaper |
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 |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1038/s41598-021-83486-5 http://www.nature.com/articles/s41598-021-83486-5.pdf http://www.nature.com/articles/s41598-021-83486-5 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Scientific Reports volume 11, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
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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1766308730840809472 |