Local and remote response of ozone to Arctic stratospheric circulation extremes
Intense natural circulation variability associated with stratospheric sudden warmings, vortex intensifications, and final warmings is a typical feature of the winter Arctic stratosphere. The attendant changes in transport, mixing, and temperature create pronounced perturbations in stratospheric ozon...
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ftdoajarticles:oai:doaj.org/article:ec99221f64bb46ab9680d032150c6a7a 2023-05-15T14:35:35+02:00 Local and remote response of ozone to Arctic stratospheric circulation extremes H.-J. Hong T. Reichler 2021-01-01T00:00:00Z https://doi.org/10.5194/acp-21-1159-2021 https://doaj.org/article/ec99221f64bb46ab9680d032150c6a7a EN eng Copernicus Publications https://acp.copernicus.org/articles/21/1159/2021/acp-21-1159-2021.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-21-1159-2021 1680-7316 1680-7324 https://doaj.org/article/ec99221f64bb46ab9680d032150c6a7a Atmospheric Chemistry and Physics, Vol 21, Pp 1159-1171 (2021) Physics QC1-999 Chemistry QD1-999 article 2021 ftdoajarticles https://doi.org/10.5194/acp-21-1159-2021 2022-12-31T12:25:16Z Intense natural circulation variability associated with stratospheric sudden warmings, vortex intensifications, and final warmings is a typical feature of the winter Arctic stratosphere. The attendant changes in transport, mixing, and temperature create pronounced perturbations in stratospheric ozone. Understanding these perturbations is important because of their potential feedbacks with the circulation and because ozone is a key trace gas of the stratosphere. Here, we use Modern-Era Retrospective analysis for Research and Applications, version 2 (MERRA-2), reanalysis to contrast the typical spatiotemporal structure of ozone during sudden warming and vortex intensification events. We examine the changes of ozone in both the Arctic and the tropics, document the underlying dynamical mechanisms for the observed changes, and analyze the entire life cycle of the stratospheric events – from the event onset in midwinter to the final warming in early spring. Over the Arctic and during sudden warmings, ozone undergoes a rapid and long-lasting increase of up to ∼ 50 DU, which only gradually decays to climatology before the final warming. In contrast, vortex intensifications are passive events, associated with gradual decreases in Arctic ozone that reach ∼ 40 DU during late winter and decay thereafter. The persistent loss in Arctic ozone during vortex intensifications is dramatically compensated by sudden warming-like increases after the final warming. In the tropics, the changes in ozone from Arctic circulation events are obscured by the influences from the quasi-biennial oscillation. After controlling for this effect, small but coherent reductions in tropical ozone can be seen during the onset of sudden warmings ( ∼ 2.5 DU) and also during the final warmings that follow vortex intensifications ( ∼ 2 DU). Our results demonstrate that Arctic circulation extremes have significant local and remote influences on the distribution of stratospheric ozone. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Merra ENVELOPE(12.615,12.615,65.816,65.816) Midwinter ENVELOPE(139.931,139.931,-66.690,-66.690) Atmospheric Chemistry and Physics 21 2 1159 1171 |
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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 H.-J. Hong T. Reichler Local and remote response of ozone to Arctic stratospheric circulation extremes |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
Intense natural circulation variability associated with stratospheric sudden warmings, vortex intensifications, and final warmings is a typical feature of the winter Arctic stratosphere. The attendant changes in transport, mixing, and temperature create pronounced perturbations in stratospheric ozone. Understanding these perturbations is important because of their potential feedbacks with the circulation and because ozone is a key trace gas of the stratosphere. Here, we use Modern-Era Retrospective analysis for Research and Applications, version 2 (MERRA-2), reanalysis to contrast the typical spatiotemporal structure of ozone during sudden warming and vortex intensification events. We examine the changes of ozone in both the Arctic and the tropics, document the underlying dynamical mechanisms for the observed changes, and analyze the entire life cycle of the stratospheric events – from the event onset in midwinter to the final warming in early spring. Over the Arctic and during sudden warmings, ozone undergoes a rapid and long-lasting increase of up to ∼ 50 DU, which only gradually decays to climatology before the final warming. In contrast, vortex intensifications are passive events, associated with gradual decreases in Arctic ozone that reach ∼ 40 DU during late winter and decay thereafter. The persistent loss in Arctic ozone during vortex intensifications is dramatically compensated by sudden warming-like increases after the final warming. In the tropics, the changes in ozone from Arctic circulation events are obscured by the influences from the quasi-biennial oscillation. After controlling for this effect, small but coherent reductions in tropical ozone can be seen during the onset of sudden warmings ( ∼ 2.5 DU) and also during the final warmings that follow vortex intensifications ( ∼ 2 DU). Our results demonstrate that Arctic circulation extremes have significant local and remote influences on the distribution of stratospheric ozone. |
format |
Article in Journal/Newspaper |
author |
H.-J. Hong T. Reichler |
author_facet |
H.-J. Hong T. Reichler |
author_sort |
H.-J. Hong |
title |
Local and remote response of ozone to Arctic stratospheric circulation extremes |
title_short |
Local and remote response of ozone to Arctic stratospheric circulation extremes |
title_full |
Local and remote response of ozone to Arctic stratospheric circulation extremes |
title_fullStr |
Local and remote response of ozone to Arctic stratospheric circulation extremes |
title_full_unstemmed |
Local and remote response of ozone to Arctic stratospheric circulation extremes |
title_sort |
local and remote response of ozone to arctic stratospheric circulation extremes |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/acp-21-1159-2021 https://doaj.org/article/ec99221f64bb46ab9680d032150c6a7a |
long_lat |
ENVELOPE(12.615,12.615,65.816,65.816) ENVELOPE(139.931,139.931,-66.690,-66.690) |
geographic |
Arctic Merra Midwinter |
geographic_facet |
Arctic Merra Midwinter |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Atmospheric Chemistry and Physics, Vol 21, Pp 1159-1171 (2021) |
op_relation |
https://acp.copernicus.org/articles/21/1159/2021/acp-21-1159-2021.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-21-1159-2021 1680-7316 1680-7324 https://doaj.org/article/ec99221f64bb46ab9680d032150c6a7a |
op_doi |
https://doi.org/10.5194/acp-21-1159-2021 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
21 |
container_issue |
2 |
container_start_page |
1159 |
op_container_end_page |
1171 |
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1766308377803096064 |