North Atlantic oscillation modulates total ozone winter trends
The North Atlantic Oscillation (NAO) is modulating the Earth's ozone shield such that the calculated anthropogenic total ozone decrease is enhanced over Europe whereas over the North Atlantic region it is reduced (for the last 30 years). Including the NAO in a statistical model suggests a more...
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2000
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ftdatacite:10.48350/158794 2023-05-15T16:48:59+02:00 North Atlantic oscillation modulates total ozone winter trends Appenzeller, Christof Weiss, Andrea K. Staehelin, Johannes 2000 https://dx.doi.org/10.48350/158794 https://boris.unibe.ch/158794/ unknown American Geophysical Union open access publisher holds copyright http://purl.org/coar/access_right/c_abf2 530 Physics Text article-journal journal article ScholarlyArticle 2000 ftdatacite https://doi.org/10.48350/158794 2021-11-05T12:55:41Z The North Atlantic Oscillation (NAO) is modulating the Earth's ozone shield such that the calculated anthropogenic total ozone decrease is enhanced over Europe whereas over the North Atlantic region it is reduced (for the last 30 years). Including the NAO in a statistical model suggests a more uniform chemical winter trend compared to the strong longitudinal variation reported earlier. At Arosa (Switzerland) the trend is reduced to −2.4% per decade compared to −3.2% and at Reykjavik (Iceland) it is enhanced to −3.8% compared to 0%. The revised trend is slightly below the predictions by 2D chemical models. Decadal ozone variability is linked to variations in the dynamical structure of the atmosphere, as reflected in the tropopause pressure. The latter varies in concert with the NAO index with a distinct geographical pattern. Text Iceland North Atlantic North Atlantic oscillation DataCite Metadata Store (German National Library of Science and Technology) |
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530 Physics |
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530 Physics Appenzeller, Christof Weiss, Andrea K. Staehelin, Johannes North Atlantic oscillation modulates total ozone winter trends |
topic_facet |
530 Physics |
description |
The North Atlantic Oscillation (NAO) is modulating the Earth's ozone shield such that the calculated anthropogenic total ozone decrease is enhanced over Europe whereas over the North Atlantic region it is reduced (for the last 30 years). Including the NAO in a statistical model suggests a more uniform chemical winter trend compared to the strong longitudinal variation reported earlier. At Arosa (Switzerland) the trend is reduced to −2.4% per decade compared to −3.2% and at Reykjavik (Iceland) it is enhanced to −3.8% compared to 0%. The revised trend is slightly below the predictions by 2D chemical models. Decadal ozone variability is linked to variations in the dynamical structure of the atmosphere, as reflected in the tropopause pressure. The latter varies in concert with the NAO index with a distinct geographical pattern. |
format |
Text |
author |
Appenzeller, Christof Weiss, Andrea K. Staehelin, Johannes |
author_facet |
Appenzeller, Christof Weiss, Andrea K. Staehelin, Johannes |
author_sort |
Appenzeller, Christof |
title |
North Atlantic oscillation modulates total ozone winter trends |
title_short |
North Atlantic oscillation modulates total ozone winter trends |
title_full |
North Atlantic oscillation modulates total ozone winter trends |
title_fullStr |
North Atlantic oscillation modulates total ozone winter trends |
title_full_unstemmed |
North Atlantic oscillation modulates total ozone winter trends |
title_sort |
north atlantic oscillation modulates total ozone winter trends |
publisher |
American Geophysical Union |
publishDate |
2000 |
url |
https://dx.doi.org/10.48350/158794 https://boris.unibe.ch/158794/ |
genre |
Iceland North Atlantic North Atlantic oscillation |
genre_facet |
Iceland North Atlantic North Atlantic oscillation |
op_rights |
open access publisher holds copyright http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.48350/158794 |
_version_ |
1766039057210540032 |