Significant relationship between Arctic warming and East Asia hot summers
Abstract Arctic warming is of growing interest because it could affect midlatitude climates. Even though numerous studies have paid attention to the relationship between Arctic warming and the midlatitude climate in winter, the influence of Arctic warming on the summer conditions has not been examin...
Published in: | International Journal of Climatology |
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crwiley:10.1002/joc.7844 2024-06-23T07:49:05+00:00 Significant relationship between Arctic warming and East Asia hot summers Kim, Da‐Seul Jun, Sang‐Yoon Lee, Myong‐In Kug, Jong‐Seong Korea Institute of Marine Science and Technology promotion National Research Foundation of Korea 2022 http://dx.doi.org/10.1002/joc.7844 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.7844 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.7844 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.7844 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 42, issue 16, page 9530-9538 ISSN 0899-8418 1097-0088 journal-article 2022 crwiley https://doi.org/10.1002/joc.7844 2024-05-31T08:10:20Z Abstract Arctic warming is of growing interest because it could affect midlatitude climates. Even though numerous studies have paid attention to the relationship between Arctic warming and the midlatitude climate in winter, the influence of Arctic warming on the summer conditions has not been examined in depth. Here we identify a significant relationship between East Asia hot summers and Arctic warming over the Barents and Kara seas. To represent Arctic warming, we define a combined index by simply differencing the normalized surface air temperature and sea‐ice indices. We found that the combined index in July has significantly high correlations with the temperatures in China, Korea, and Japan. While the teleconnection mechanism is not completely revealed, it is evident that warming over the Barents and Kara seas is accompanied by the local development of an anomalous anticyclone and downstream wave trains, which yield a strong anticyclonic circulation over East Asia and the North Pacific. The anticyclonic circulation persists and intensifies until August, which leads to hot summer conditions in East Asia with warm advection and enhanced shortwave radiation. Our results suggest that Arctic climate conditions can be used as a useful precursor of East Asia temperature variations even in summer. Article in Journal/Newspaper Arctic Sea ice Wiley Online Library Arctic Pacific International Journal of Climatology |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Arctic warming is of growing interest because it could affect midlatitude climates. Even though numerous studies have paid attention to the relationship between Arctic warming and the midlatitude climate in winter, the influence of Arctic warming on the summer conditions has not been examined in depth. Here we identify a significant relationship between East Asia hot summers and Arctic warming over the Barents and Kara seas. To represent Arctic warming, we define a combined index by simply differencing the normalized surface air temperature and sea‐ice indices. We found that the combined index in July has significantly high correlations with the temperatures in China, Korea, and Japan. While the teleconnection mechanism is not completely revealed, it is evident that warming over the Barents and Kara seas is accompanied by the local development of an anomalous anticyclone and downstream wave trains, which yield a strong anticyclonic circulation over East Asia and the North Pacific. The anticyclonic circulation persists and intensifies until August, which leads to hot summer conditions in East Asia with warm advection and enhanced shortwave radiation. Our results suggest that Arctic climate conditions can be used as a useful precursor of East Asia temperature variations even in summer. |
author2 |
Korea Institute of Marine Science and Technology promotion National Research Foundation of Korea |
format |
Article in Journal/Newspaper |
author |
Kim, Da‐Seul Jun, Sang‐Yoon Lee, Myong‐In Kug, Jong‐Seong |
spellingShingle |
Kim, Da‐Seul Jun, Sang‐Yoon Lee, Myong‐In Kug, Jong‐Seong Significant relationship between Arctic warming and East Asia hot summers |
author_facet |
Kim, Da‐Seul Jun, Sang‐Yoon Lee, Myong‐In Kug, Jong‐Seong |
author_sort |
Kim, Da‐Seul |
title |
Significant relationship between Arctic warming and East Asia hot summers |
title_short |
Significant relationship between Arctic warming and East Asia hot summers |
title_full |
Significant relationship between Arctic warming and East Asia hot summers |
title_fullStr |
Significant relationship between Arctic warming and East Asia hot summers |
title_full_unstemmed |
Significant relationship between Arctic warming and East Asia hot summers |
title_sort |
significant relationship between arctic warming and east asia hot summers |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/joc.7844 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.7844 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.7844 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.7844 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
International Journal of Climatology volume 42, issue 16, page 9530-9538 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.7844 |
container_title |
International Journal of Climatology |
_version_ |
1802639356985344000 |