Potential contribution of winter dominant atmospheric mode over the mid‐latitude Eurasia to the prediction of subsequent spring Arctic Oscillation
Abstract Spring Arctic Oscillation (AO) has been revealed to exert a great impact on the Northern Hemispheric climate; however, its seasonal prediction skill has been limited so far. In this paper, we find that the dominant mode of the winter 500‐hPa geopotential height anomalies over the mid‐latitu...
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crwiley:10.1002/joc.6376 2024-06-02T08:01:32+00:00 Potential contribution of winter dominant atmospheric mode over the mid‐latitude Eurasia to the prediction of subsequent spring Arctic Oscillation Han, Shuangze Sun, Jianqi National Basic Research Program of China National Natural Science Foundation of China 2019 http://dx.doi.org/10.1002/joc.6376 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6376 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.6376 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6376 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 40, issue 6, page 2953-2963 ISSN 0899-8418 1097-0088 journal-article 2019 crwiley https://doi.org/10.1002/joc.6376 2024-05-03T10:42:45Z Abstract Spring Arctic Oscillation (AO) has been revealed to exert a great impact on the Northern Hemispheric climate; however, its seasonal prediction skill has been limited so far. In this paper, we find that the dominant mode of the winter 500‐hPa geopotential height anomalies over the mid‐latitude Eurasia has a close connection with the succeeding spring AO. The analysis on the physical processes indicates that the troposphere–stratosphere interaction plays an important role in the connection between the two. This predominant atmospheric mode in the mid‐latitude Eurasia during winter can change the vertical wave activity and lead to an anomalous stratospheric polar vortex. Thereafter, the signal of the anomalous stratospheric polar vortex propagates downward to troposphere in the subsequent spring, consequently inducing the anomalous AO pattern in the troposphere. The results in this study imply that this previous winter leading atmospheric mode over the mid‐latitude Eurasia may supply a potential source for a spring AO's prediction. Article in Journal/Newspaper Arctic Wiley Online Library Arctic International Journal of Climatology 40 6 2953 2963 |
institution |
Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Spring Arctic Oscillation (AO) has been revealed to exert a great impact on the Northern Hemispheric climate; however, its seasonal prediction skill has been limited so far. In this paper, we find that the dominant mode of the winter 500‐hPa geopotential height anomalies over the mid‐latitude Eurasia has a close connection with the succeeding spring AO. The analysis on the physical processes indicates that the troposphere–stratosphere interaction plays an important role in the connection between the two. This predominant atmospheric mode in the mid‐latitude Eurasia during winter can change the vertical wave activity and lead to an anomalous stratospheric polar vortex. Thereafter, the signal of the anomalous stratospheric polar vortex propagates downward to troposphere in the subsequent spring, consequently inducing the anomalous AO pattern in the troposphere. The results in this study imply that this previous winter leading atmospheric mode over the mid‐latitude Eurasia may supply a potential source for a spring AO's prediction. |
author2 |
National Basic Research Program of China National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Han, Shuangze Sun, Jianqi |
spellingShingle |
Han, Shuangze Sun, Jianqi Potential contribution of winter dominant atmospheric mode over the mid‐latitude Eurasia to the prediction of subsequent spring Arctic Oscillation |
author_facet |
Han, Shuangze Sun, Jianqi |
author_sort |
Han, Shuangze |
title |
Potential contribution of winter dominant atmospheric mode over the mid‐latitude Eurasia to the prediction of subsequent spring Arctic Oscillation |
title_short |
Potential contribution of winter dominant atmospheric mode over the mid‐latitude Eurasia to the prediction of subsequent spring Arctic Oscillation |
title_full |
Potential contribution of winter dominant atmospheric mode over the mid‐latitude Eurasia to the prediction of subsequent spring Arctic Oscillation |
title_fullStr |
Potential contribution of winter dominant atmospheric mode over the mid‐latitude Eurasia to the prediction of subsequent spring Arctic Oscillation |
title_full_unstemmed |
Potential contribution of winter dominant atmospheric mode over the mid‐latitude Eurasia to the prediction of subsequent spring Arctic Oscillation |
title_sort |
potential contribution of winter dominant atmospheric mode over the mid‐latitude eurasia to the prediction of subsequent spring arctic oscillation |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1002/joc.6376 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6376 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.6376 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6376 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
International Journal of Climatology volume 40, issue 6, page 2953-2963 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.6376 |
container_title |
International Journal of Climatology |
container_volume |
40 |
container_issue |
6 |
container_start_page |
2953 |
op_container_end_page |
2963 |
_version_ |
1800745927708770304 |