Diverse impacts of the Siberian high on surface air temperature in Northeast China during boreal winter
Abstract The robust negative correlation between the Siberian High (SH) intensity and winter surface air temperature (SAT) in Northeast China has been widely used for winter climate seasonal forecasting. However, this traditional viewpoint varies when considering the changes in SH spatial extension...
Published in: | International Journal of Climatology |
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crwiley:10.1002/joc.6199 2024-06-23T07:50:03+00:00 Diverse impacts of the Siberian high on surface air temperature in Northeast China during boreal winter Liu, Boqi Zhu, Congwen National Natural Science Foundation of China 2019 http://dx.doi.org/10.1002/joc.6199 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.6199 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6199 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.6199 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6199 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 40, issue 1, page 594-603 ISSN 0899-8418 1097-0088 journal-article 2019 crwiley https://doi.org/10.1002/joc.6199 2024-06-06T04:22:14Z Abstract The robust negative correlation between the Siberian High (SH) intensity and winter surface air temperature (SAT) in Northeast China has been widely used for winter climate seasonal forecasting. However, this traditional viewpoint varies when considering the changes in SH spatial extension during boreal winter. Here, a newly defined SH index representing both SH intensity and spatial extension shows two distinct influences of a stronger SH on the SAT in Northeast China. The stronger SH with a decreasing eastern edge, which features a meridional see–saw dipole of abnormal circulations centred over the Arctic and Siberia, respectively, results in a warmer winter over Northeast China. In this situation, the decreasing SH is linked to the enhanced Arctic Polar vortex through a tropospheric–stratospheric interaction. However, a stronger SH with an expanding eastern edge is coupled with the East Asian trough (EAT) and results in a colder winter in Northeast China. The SH and EAT anomalies are embedded in a zonally oriented wave‐train originating from the North Atlantic in the troposphere. Because of the diversity of impacts, the SH intensity and zonal extension should be jointly considered for seasonal forecasting of winter SAT anomalies in Northeast China. Article in Journal/Newspaper Arctic North Atlantic Siberia Wiley Online Library Arctic International Journal of Climatology 40 1 594 603 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract The robust negative correlation between the Siberian High (SH) intensity and winter surface air temperature (SAT) in Northeast China has been widely used for winter climate seasonal forecasting. However, this traditional viewpoint varies when considering the changes in SH spatial extension during boreal winter. Here, a newly defined SH index representing both SH intensity and spatial extension shows two distinct influences of a stronger SH on the SAT in Northeast China. The stronger SH with a decreasing eastern edge, which features a meridional see–saw dipole of abnormal circulations centred over the Arctic and Siberia, respectively, results in a warmer winter over Northeast China. In this situation, the decreasing SH is linked to the enhanced Arctic Polar vortex through a tropospheric–stratospheric interaction. However, a stronger SH with an expanding eastern edge is coupled with the East Asian trough (EAT) and results in a colder winter in Northeast China. The SH and EAT anomalies are embedded in a zonally oriented wave‐train originating from the North Atlantic in the troposphere. Because of the diversity of impacts, the SH intensity and zonal extension should be jointly considered for seasonal forecasting of winter SAT anomalies in Northeast China. |
author2 |
National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Liu, Boqi Zhu, Congwen |
spellingShingle |
Liu, Boqi Zhu, Congwen Diverse impacts of the Siberian high on surface air temperature in Northeast China during boreal winter |
author_facet |
Liu, Boqi Zhu, Congwen |
author_sort |
Liu, Boqi |
title |
Diverse impacts of the Siberian high on surface air temperature in Northeast China during boreal winter |
title_short |
Diverse impacts of the Siberian high on surface air temperature in Northeast China during boreal winter |
title_full |
Diverse impacts of the Siberian high on surface air temperature in Northeast China during boreal winter |
title_fullStr |
Diverse impacts of the Siberian high on surface air temperature in Northeast China during boreal winter |
title_full_unstemmed |
Diverse impacts of the Siberian high on surface air temperature in Northeast China during boreal winter |
title_sort |
diverse impacts of the siberian high on surface air temperature in northeast china during boreal winter |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1002/joc.6199 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.6199 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6199 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.6199 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6199 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic Siberia |
genre_facet |
Arctic North Atlantic Siberia |
op_source |
International Journal of Climatology volume 40, issue 1, page 594-603 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.6199 |
container_title |
International Journal of Climatology |
container_volume |
40 |
container_issue |
1 |
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594 |
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603 |
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1802640815046000640 |