The effect of interactive ozone chemistry on weak and strong stratospheric polar vortex events
Modeling and observational studies have reported effects of stratospheric ozone extremes on Northern Hemisphere spring climate. Recent work has further suggested that the coupling of ozone chemistry and dynamics amplifies the surface response to midwinter sudden stratospheric warmings (SSWs). Here w...
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ftdoajarticles:oai:doaj.org/article:a1f27856ece2421e95d865b62808f4b4 2023-05-15T17:30:20+02:00 The effect of interactive ozone chemistry on weak and strong stratospheric polar vortex events J. Oehrlein G. Chiodo L. M. Polvani 2020-09-01T00:00:00Z https://doi.org/10.5194/acp-20-10531-2020 https://doaj.org/article/a1f27856ece2421e95d865b62808f4b4 EN eng Copernicus Publications https://acp.copernicus.org/articles/20/10531/2020/acp-20-10531-2020.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-20-10531-2020 1680-7316 1680-7324 https://doaj.org/article/a1f27856ece2421e95d865b62808f4b4 Atmospheric Chemistry and Physics, Vol 20, Pp 10531-10544 (2020) Physics QC1-999 Chemistry QD1-999 article 2020 ftdoajarticles https://doi.org/10.5194/acp-20-10531-2020 2022-12-31T04:41:01Z Modeling and observational studies have reported effects of stratospheric ozone extremes on Northern Hemisphere spring climate. Recent work has further suggested that the coupling of ozone chemistry and dynamics amplifies the surface response to midwinter sudden stratospheric warmings (SSWs). Here we study the importance of interactive ozone chemistry in representing the stratospheric polar vortex and Northern Hemisphere winter surface climate variability. We contrast two simulations from the interactive and specified chemistry (and thus ozone) versions of the Whole Atmosphere Community Climate Model, which is designed to isolate the impact of interactive ozone on polar vortex variability. In particular, we analyze the response with and without interactive chemistry to midwinter SSWs, March SSWs, and strong polar vortex events (SPVs). With interactive chemistry, the stratospheric polar vortex is stronger and more SPVs occur, but we find little effect on the frequency of midwinter SSWs. At the surface, interactive chemistry results in a pattern resembling a more negative North Atlantic Oscillation following midwinter SSWs but with little impact on the surface signatures of late winter SSWs and SPVs. These results suggest that including interactive ozone chemistry is important for representing North Atlantic and European winter climate variability. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Directory of Open Access Journals: DOAJ Articles Midwinter ENVELOPE(139.931,139.931,-66.690,-66.690) Atmospheric Chemistry and Physics 20 17 10531 10544 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 J. Oehrlein G. Chiodo L. M. Polvani The effect of interactive ozone chemistry on weak and strong stratospheric polar vortex events |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
Modeling and observational studies have reported effects of stratospheric ozone extremes on Northern Hemisphere spring climate. Recent work has further suggested that the coupling of ozone chemistry and dynamics amplifies the surface response to midwinter sudden stratospheric warmings (SSWs). Here we study the importance of interactive ozone chemistry in representing the stratospheric polar vortex and Northern Hemisphere winter surface climate variability. We contrast two simulations from the interactive and specified chemistry (and thus ozone) versions of the Whole Atmosphere Community Climate Model, which is designed to isolate the impact of interactive ozone on polar vortex variability. In particular, we analyze the response with and without interactive chemistry to midwinter SSWs, March SSWs, and strong polar vortex events (SPVs). With interactive chemistry, the stratospheric polar vortex is stronger and more SPVs occur, but we find little effect on the frequency of midwinter SSWs. At the surface, interactive chemistry results in a pattern resembling a more negative North Atlantic Oscillation following midwinter SSWs but with little impact on the surface signatures of late winter SSWs and SPVs. These results suggest that including interactive ozone chemistry is important for representing North Atlantic and European winter climate variability. |
format |
Article in Journal/Newspaper |
author |
J. Oehrlein G. Chiodo L. M. Polvani |
author_facet |
J. Oehrlein G. Chiodo L. M. Polvani |
author_sort |
J. Oehrlein |
title |
The effect of interactive ozone chemistry on weak and strong stratospheric polar vortex events |
title_short |
The effect of interactive ozone chemistry on weak and strong stratospheric polar vortex events |
title_full |
The effect of interactive ozone chemistry on weak and strong stratospheric polar vortex events |
title_fullStr |
The effect of interactive ozone chemistry on weak and strong stratospheric polar vortex events |
title_full_unstemmed |
The effect of interactive ozone chemistry on weak and strong stratospheric polar vortex events |
title_sort |
effect of interactive ozone chemistry on weak and strong stratospheric polar vortex events |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/acp-20-10531-2020 https://doaj.org/article/a1f27856ece2421e95d865b62808f4b4 |
long_lat |
ENVELOPE(139.931,139.931,-66.690,-66.690) |
geographic |
Midwinter |
geographic_facet |
Midwinter |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Atmospheric Chemistry and Physics, Vol 20, Pp 10531-10544 (2020) |
op_relation |
https://acp.copernicus.org/articles/20/10531/2020/acp-20-10531-2020.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-20-10531-2020 1680-7316 1680-7324 https://doaj.org/article/a1f27856ece2421e95d865b62808f4b4 |
op_doi |
https://doi.org/10.5194/acp-20-10531-2020 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
20 |
container_issue |
17 |
container_start_page |
10531 |
op_container_end_page |
10544 |
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1766126679687692288 |