Dynamics of 2013 Sudden Stratospheric Warming event and its impact on cold weather over Eurasia: Role of planetary wave reflection
In the present study, we investigate the impact of stratospheric planetary wave reflection on tropospheric weather over Central Eurasia during the 2013 Sudden Stratospheric Warming (SSW) event. We analyze EP fluxes and Plumb wave activity fluxes to study the two and three dimensional aspects of wave...
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ftpubmed:oai:pubmedcentral.nih.gov:4823715 2023-05-15T17:33:44+02:00 Dynamics of 2013 Sudden Stratospheric Warming event and its impact on cold weather over Eurasia: Role of planetary wave reflection Nath, Debashis Chen, Wen Zelin, Cai Pogoreltsev, Alexander Ivanovich Wei, Ke 2016-04-07 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4823715/ http://www.ncbi.nlm.nih.gov/pubmed/27051997 https://doi.org/10.1038/srep24174 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4823715/ http://www.ncbi.nlm.nih.gov/pubmed/27051997 http://dx.doi.org/10.1038/srep24174 Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ CC-BY Article Text 2016 ftpubmed https://doi.org/10.1038/srep24174 2016-04-24T00:08:54Z In the present study, we investigate the impact of stratospheric planetary wave reflection on tropospheric weather over Central Eurasia during the 2013 Sudden Stratospheric Warming (SSW) event. We analyze EP fluxes and Plumb wave activity fluxes to study the two and three dimensional aspects of wave propagation, respectively. The 2013 SSW event is excited by the combined influence of wavenumber 1 (WN1) and wavenumber 2 (WN2) planetary waves, which makes the event an unusual one and seems to have significant impact on tropospheric weather regime. We observe an extraordinary development of a ridge over the Siberian Tundra and the North Pacific during first development stage (last week of December 2012) and later from the North Atlantic in the second development stage (first week of January 2013), and these waves appear to be responsible for the excitation of the WN2 pattern during the SSW. The wave packets propagated upward and were then reflected back down to central Eurasia due to strong negative wind shear in the upper stratospheric polar jet, caused by the SSW event. Waves that propagated downward led to the formation of a deep trough over Eurasia and brought extreme cold weather over Kazakhstan, the Southern part of Russia and the Northwestern part of China during mid-January 2013. Text North Atlantic Tundra PubMed Central (PMC) Pacific Scientific Reports 6 1 |
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Article Nath, Debashis Chen, Wen Zelin, Cai Pogoreltsev, Alexander Ivanovich Wei, Ke Dynamics of 2013 Sudden Stratospheric Warming event and its impact on cold weather over Eurasia: Role of planetary wave reflection |
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Article |
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In the present study, we investigate the impact of stratospheric planetary wave reflection on tropospheric weather over Central Eurasia during the 2013 Sudden Stratospheric Warming (SSW) event. We analyze EP fluxes and Plumb wave activity fluxes to study the two and three dimensional aspects of wave propagation, respectively. The 2013 SSW event is excited by the combined influence of wavenumber 1 (WN1) and wavenumber 2 (WN2) planetary waves, which makes the event an unusual one and seems to have significant impact on tropospheric weather regime. We observe an extraordinary development of a ridge over the Siberian Tundra and the North Pacific during first development stage (last week of December 2012) and later from the North Atlantic in the second development stage (first week of January 2013), and these waves appear to be responsible for the excitation of the WN2 pattern during the SSW. The wave packets propagated upward and were then reflected back down to central Eurasia due to strong negative wind shear in the upper stratospheric polar jet, caused by the SSW event. Waves that propagated downward led to the formation of a deep trough over Eurasia and brought extreme cold weather over Kazakhstan, the Southern part of Russia and the Northwestern part of China during mid-January 2013. |
format |
Text |
author |
Nath, Debashis Chen, Wen Zelin, Cai Pogoreltsev, Alexander Ivanovich Wei, Ke |
author_facet |
Nath, Debashis Chen, Wen Zelin, Cai Pogoreltsev, Alexander Ivanovich Wei, Ke |
author_sort |
Nath, Debashis |
title |
Dynamics of 2013 Sudden Stratospheric Warming event and its impact on cold weather over Eurasia: Role of planetary wave reflection |
title_short |
Dynamics of 2013 Sudden Stratospheric Warming event and its impact on cold weather over Eurasia: Role of planetary wave reflection |
title_full |
Dynamics of 2013 Sudden Stratospheric Warming event and its impact on cold weather over Eurasia: Role of planetary wave reflection |
title_fullStr |
Dynamics of 2013 Sudden Stratospheric Warming event and its impact on cold weather over Eurasia: Role of planetary wave reflection |
title_full_unstemmed |
Dynamics of 2013 Sudden Stratospheric Warming event and its impact on cold weather over Eurasia: Role of planetary wave reflection |
title_sort |
dynamics of 2013 sudden stratospheric warming event and its impact on cold weather over eurasia: role of planetary wave reflection |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4823715/ http://www.ncbi.nlm.nih.gov/pubmed/27051997 https://doi.org/10.1038/srep24174 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic Tundra |
genre_facet |
North Atlantic Tundra |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4823715/ http://www.ncbi.nlm.nih.gov/pubmed/27051997 http://dx.doi.org/10.1038/srep24174 |
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Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
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CC-BY |
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https://doi.org/10.1038/srep24174 |
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Scientific Reports |
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