Stratospheric warming in Southern Hemisphere high latitudes since 1979
In the present study, we show evidence of significant stratospheric warming over Southern Hemisphere high latitudes and large portions of the Antarctic polar region in winter and spring seasons, with a maximum warming of 7–8°C in September and October, using satellite Microwave Sounding Unit observa...
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ftdoajarticles:oai:doaj.org/article:bb7eb81184214ebb89ef9341a738521f 2023-05-15T13:44:40+02:00 Stratospheric warming in Southern Hemisphere high latitudes since 1979 Y. Hu Q. Fu 2009-07-01T00:00:00Z https://doaj.org/article/bb7eb81184214ebb89ef9341a738521f EN eng Copernicus Publications http://www.atmos-chem-phys.net/9/4329/2009/acp-9-4329-2009.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/bb7eb81184214ebb89ef9341a738521f Atmospheric Chemistry and Physics, Vol 9, Iss 13, Pp 4329-4340 (2009) Physics QC1-999 Chemistry QD1-999 article 2009 ftdoajarticles 2022-12-31T06:54:41Z In the present study, we show evidence of significant stratospheric warming over Southern Hemisphere high latitudes and large portions of the Antarctic polar region in winter and spring seasons, with a maximum warming of 7–8°C in September and October, using satellite Microwave Sounding Unit observations for 1979–2006. It is found that this warming is associated with increasing wave activity from the troposphere into the stratosphere, suggesting that the warming is caused by enhanced wave-driven adiabatic heating. We show that the stratospheric warming in Southern Hemisphere high latitudes has close correlations with sea surface temperature (SST) increases, and that general circulation model simulations forced with observed time-varying SSTs reproduce similar warming trend patterns in the Antarctic stratosphere. The simulated stratospheric warming is closely related to increasing wave activity in the Southern Hemisphere. These findings suggest that the stratospheric warming is likely induced by SST warming. As SST warming continues as a consequence of greenhouse gas increases due to anthropogenic activity, the stratospheric warming would also continue, which has important implications to the recovery of the Antarctic ozone hole. Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic |
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Directory of Open Access Journals: DOAJ Articles |
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English |
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Physics QC1-999 Chemistry QD1-999 |
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Physics QC1-999 Chemistry QD1-999 Y. Hu Q. Fu Stratospheric warming in Southern Hemisphere high latitudes since 1979 |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
In the present study, we show evidence of significant stratospheric warming over Southern Hemisphere high latitudes and large portions of the Antarctic polar region in winter and spring seasons, with a maximum warming of 7–8°C in September and October, using satellite Microwave Sounding Unit observations for 1979–2006. It is found that this warming is associated with increasing wave activity from the troposphere into the stratosphere, suggesting that the warming is caused by enhanced wave-driven adiabatic heating. We show that the stratospheric warming in Southern Hemisphere high latitudes has close correlations with sea surface temperature (SST) increases, and that general circulation model simulations forced with observed time-varying SSTs reproduce similar warming trend patterns in the Antarctic stratosphere. The simulated stratospheric warming is closely related to increasing wave activity in the Southern Hemisphere. These findings suggest that the stratospheric warming is likely induced by SST warming. As SST warming continues as a consequence of greenhouse gas increases due to anthropogenic activity, the stratospheric warming would also continue, which has important implications to the recovery of the Antarctic ozone hole. |
format |
Article in Journal/Newspaper |
author |
Y. Hu Q. Fu |
author_facet |
Y. Hu Q. Fu |
author_sort |
Y. Hu |
title |
Stratospheric warming in Southern Hemisphere high latitudes since 1979 |
title_short |
Stratospheric warming in Southern Hemisphere high latitudes since 1979 |
title_full |
Stratospheric warming in Southern Hemisphere high latitudes since 1979 |
title_fullStr |
Stratospheric warming in Southern Hemisphere high latitudes since 1979 |
title_full_unstemmed |
Stratospheric warming in Southern Hemisphere high latitudes since 1979 |
title_sort |
stratospheric warming in southern hemisphere high latitudes since 1979 |
publisher |
Copernicus Publications |
publishDate |
2009 |
url |
https://doaj.org/article/bb7eb81184214ebb89ef9341a738521f |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Atmospheric Chemistry and Physics, Vol 9, Iss 13, Pp 4329-4340 (2009) |
op_relation |
http://www.atmos-chem-phys.net/9/4329/2009/acp-9-4329-2009.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/bb7eb81184214ebb89ef9341a738521f |
_version_ |
1766204664741625856 |