A Synergistic Effect of Blockings on a Persistent Strong Cold Surge in East Asia in January 2018
A persistent strong cold surge occurred in East Asia in late January 2018, causing mean near-surface air temperature in China to hit the second lowest since 1984. Moreover, the daily mean air temperature remained persistently negative for more than 20 days. Here, we find that a synergistic effect of...
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ftdoajarticles:oai:doaj.org/article:4ca53e71a66d483b83ef56c4b228f5b9 2023-05-15T14:47:07+02:00 A Synergistic Effect of Blockings on a Persistent Strong Cold Surge in East Asia in January 2018 Wei Dong Liang Zhao Shunwu Zhou Xinyong Shen 2020-02-01T00:00:00Z https://doi.org/10.3390/atmos11020215 https://doaj.org/article/4ca53e71a66d483b83ef56c4b228f5b9 EN eng MDPI AG https://www.mdpi.com/2073-4433/11/2/215 https://doaj.org/toc/2073-4433 2073-4433 doi:10.3390/atmos11020215 https://doaj.org/article/4ca53e71a66d483b83ef56c4b228f5b9 Atmosphere, Vol 11, Iss 2, p 215 (2020) synergistic effect blockings arctic oscillation cold surge extreme event Meteorology. Climatology QC851-999 article 2020 ftdoajarticles https://doi.org/10.3390/atmos11020215 2022-12-31T02:47:24Z A persistent strong cold surge occurred in East Asia in late January 2018, causing mean near-surface air temperature in China to hit the second lowest since 1984. Moreover, the daily mean air temperature remained persistently negative for more than 20 days. Here, we find that a synergistic effect of double blockings in Western Europe and North America plays an important accelerating role in the rapid phase transition of Arctic Oscillation and an amplifying role in the strength of cold air preceding to the cold surge outbreaks by the use of an isentropic potential vorticity analysis. In mid-January, an Atlantic mid-latitude anticyclone merged with Western Europe blocking, which led to a strengthening of the blocking. Simultaneously, the Pacific-North American blocking was also significantly strengthened. The two blockings synchronously deeply stretched towards the Arctic, which resulted in, on the one hand, warm and moist air of the Pacific and the Atlantic being excessively transported into the Arctic, and on the other hand, the polar vortex being split and cold air being squeezed southwards and accumulating extensively on the West Siberian Plain. After the breakdown of the double blocking pattern, which lasted for about 10 days, the record-breaking cold surge broke out in East Asia. It was discovered that the synergistic effect of double blockings extending into the Arctic, which is conducive to extreme cold events, has been rapidly increasing in recent years. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Pacific Atmosphere 11 2 215 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
synergistic effect blockings arctic oscillation cold surge extreme event Meteorology. Climatology QC851-999 |
spellingShingle |
synergistic effect blockings arctic oscillation cold surge extreme event Meteorology. Climatology QC851-999 Wei Dong Liang Zhao Shunwu Zhou Xinyong Shen A Synergistic Effect of Blockings on a Persistent Strong Cold Surge in East Asia in January 2018 |
topic_facet |
synergistic effect blockings arctic oscillation cold surge extreme event Meteorology. Climatology QC851-999 |
description |
A persistent strong cold surge occurred in East Asia in late January 2018, causing mean near-surface air temperature in China to hit the second lowest since 1984. Moreover, the daily mean air temperature remained persistently negative for more than 20 days. Here, we find that a synergistic effect of double blockings in Western Europe and North America plays an important accelerating role in the rapid phase transition of Arctic Oscillation and an amplifying role in the strength of cold air preceding to the cold surge outbreaks by the use of an isentropic potential vorticity analysis. In mid-January, an Atlantic mid-latitude anticyclone merged with Western Europe blocking, which led to a strengthening of the blocking. Simultaneously, the Pacific-North American blocking was also significantly strengthened. The two blockings synchronously deeply stretched towards the Arctic, which resulted in, on the one hand, warm and moist air of the Pacific and the Atlantic being excessively transported into the Arctic, and on the other hand, the polar vortex being split and cold air being squeezed southwards and accumulating extensively on the West Siberian Plain. After the breakdown of the double blocking pattern, which lasted for about 10 days, the record-breaking cold surge broke out in East Asia. It was discovered that the synergistic effect of double blockings extending into the Arctic, which is conducive to extreme cold events, has been rapidly increasing in recent years. |
format |
Article in Journal/Newspaper |
author |
Wei Dong Liang Zhao Shunwu Zhou Xinyong Shen |
author_facet |
Wei Dong Liang Zhao Shunwu Zhou Xinyong Shen |
author_sort |
Wei Dong |
title |
A Synergistic Effect of Blockings on a Persistent Strong Cold Surge in East Asia in January 2018 |
title_short |
A Synergistic Effect of Blockings on a Persistent Strong Cold Surge in East Asia in January 2018 |
title_full |
A Synergistic Effect of Blockings on a Persistent Strong Cold Surge in East Asia in January 2018 |
title_fullStr |
A Synergistic Effect of Blockings on a Persistent Strong Cold Surge in East Asia in January 2018 |
title_full_unstemmed |
A Synergistic Effect of Blockings on a Persistent Strong Cold Surge in East Asia in January 2018 |
title_sort |
synergistic effect of blockings on a persistent strong cold surge in east asia in january 2018 |
publisher |
MDPI AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/atmos11020215 https://doaj.org/article/4ca53e71a66d483b83ef56c4b228f5b9 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Atmosphere, Vol 11, Iss 2, p 215 (2020) |
op_relation |
https://www.mdpi.com/2073-4433/11/2/215 https://doaj.org/toc/2073-4433 2073-4433 doi:10.3390/atmos11020215 https://doaj.org/article/4ca53e71a66d483b83ef56c4b228f5b9 |
op_doi |
https://doi.org/10.3390/atmos11020215 |
container_title |
Atmosphere |
container_volume |
11 |
container_issue |
2 |
container_start_page |
215 |
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1766318253672497152 |