Long-term wintertime trend of zonally asymmetric ozone in boreal extratropics during 1979-2016
Strong zonally asymmetric ozone (ZAO) changes are observed in the boreal extratropics for winter. During the TOMS (Total Ozone Mapping Spectrometer) period (1979-1992) the decrease of zonally asymmetric total ozone (ZATO) was twice as large as the observed zonal mean total ozone trend over Europe in...
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ftleibnizopen:oai:oai.leibnizopen.de:Kg4xZIcBdbrxVwz6ob96 2023-05-15T15:14:00+02:00 Long-term wintertime trend of zonally asymmetric ozone in boreal extratropics during 1979-2016 Schneidereit, A. Peters, D.H.W. 2018 application/pdf https://doi.org/10.34657/4632 https://oa.tib.eu/renate/handle/123456789/6003 eng eng Basel : MDPI AG CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ Atmosphere 9 (2018), 12 Ozone transport Quasi-bidecadal trend Total column ozone zonally asymmetric ozone Ultra-long planetary waves Horizontal components Planetary Waves Total ozone mapping spectrometer Transport modeling Vertical advection Ozone ageostrophic flow atmospheric chemistry atmospheric transport extratropical environment long range transport planetary wave stratosphere temporal variation trend analysis winter Atlantic Ocean Atlantic Ocean (North) Europe 550 article Text 2018 ftleibnizopen https://doi.org/10.34657/4632 2023-04-09T23:26:00Z Strong zonally asymmetric ozone (ZAO) changes are observed in the boreal extratropics for winter. During the TOMS (Total Ozone Mapping Spectrometer) period (1979-1992) the decrease of zonally asymmetric total ozone (ZATO) was twice as large as the observed zonal mean total ozone trend over Europe in January mainly caused by ultra-long wave transport. Recent studies have demonstrated that the ozone evolution reveals three different quasi-bidecadal trend stages: (i) Decline, (ii) leveling, and (ii) healing. This study focuses on the ZAO structure in boreal extratropics and on ozone transport changes by ultra-long waves during winter months. ERA-Interim data together with a linearized transport model are used. During the healing stage ZATO increases significantly over the North Atlantic/European region for January. The ZATO increase (healing stage) and ZATO decrease (decline stage) are caused by different monthly mean ozone transport characteristics of ultra-long planetary waves over the North Atlantic/European region. Furthermore, the vertical advection (ageostrophic transport) of ozone versus its horizontal component dominates in the lower and middle stratosphere during the healing stage. It is hypothesized that these ageostrophic wind changes are mainly caused by a wave train directed northeastwards which seems to be directly linked to the Arctic warming. © 2018 by the authors. Leibniz_Fonds publishedVersion Article in Journal/Newspaper Arctic North Atlantic LeibnizOpen (The Leibniz Association) Arctic |
institution |
Open Polar |
collection |
LeibnizOpen (The Leibniz Association) |
op_collection_id |
ftleibnizopen |
language |
English |
topic |
Ozone transport Quasi-bidecadal trend Total column ozone zonally asymmetric ozone Ultra-long planetary waves Horizontal components Planetary Waves Total ozone mapping spectrometer Transport modeling Vertical advection Ozone ageostrophic flow atmospheric chemistry atmospheric transport extratropical environment long range transport planetary wave stratosphere temporal variation trend analysis winter Atlantic Ocean Atlantic Ocean (North) Europe 550 |
spellingShingle |
Ozone transport Quasi-bidecadal trend Total column ozone zonally asymmetric ozone Ultra-long planetary waves Horizontal components Planetary Waves Total ozone mapping spectrometer Transport modeling Vertical advection Ozone ageostrophic flow atmospheric chemistry atmospheric transport extratropical environment long range transport planetary wave stratosphere temporal variation trend analysis winter Atlantic Ocean Atlantic Ocean (North) Europe 550 Schneidereit, A. Peters, D.H.W. Long-term wintertime trend of zonally asymmetric ozone in boreal extratropics during 1979-2016 |
topic_facet |
Ozone transport Quasi-bidecadal trend Total column ozone zonally asymmetric ozone Ultra-long planetary waves Horizontal components Planetary Waves Total ozone mapping spectrometer Transport modeling Vertical advection Ozone ageostrophic flow atmospheric chemistry atmospheric transport extratropical environment long range transport planetary wave stratosphere temporal variation trend analysis winter Atlantic Ocean Atlantic Ocean (North) Europe 550 |
description |
Strong zonally asymmetric ozone (ZAO) changes are observed in the boreal extratropics for winter. During the TOMS (Total Ozone Mapping Spectrometer) period (1979-1992) the decrease of zonally asymmetric total ozone (ZATO) was twice as large as the observed zonal mean total ozone trend over Europe in January mainly caused by ultra-long wave transport. Recent studies have demonstrated that the ozone evolution reveals three different quasi-bidecadal trend stages: (i) Decline, (ii) leveling, and (ii) healing. This study focuses on the ZAO structure in boreal extratropics and on ozone transport changes by ultra-long waves during winter months. ERA-Interim data together with a linearized transport model are used. During the healing stage ZATO increases significantly over the North Atlantic/European region for January. The ZATO increase (healing stage) and ZATO decrease (decline stage) are caused by different monthly mean ozone transport characteristics of ultra-long planetary waves over the North Atlantic/European region. Furthermore, the vertical advection (ageostrophic transport) of ozone versus its horizontal component dominates in the lower and middle stratosphere during the healing stage. It is hypothesized that these ageostrophic wind changes are mainly caused by a wave train directed northeastwards which seems to be directly linked to the Arctic warming. © 2018 by the authors. Leibniz_Fonds publishedVersion |
format |
Article in Journal/Newspaper |
author |
Schneidereit, A. Peters, D.H.W. |
author_facet |
Schneidereit, A. Peters, D.H.W. |
author_sort |
Schneidereit, A. |
title |
Long-term wintertime trend of zonally asymmetric ozone in boreal extratropics during 1979-2016 |
title_short |
Long-term wintertime trend of zonally asymmetric ozone in boreal extratropics during 1979-2016 |
title_full |
Long-term wintertime trend of zonally asymmetric ozone in boreal extratropics during 1979-2016 |
title_fullStr |
Long-term wintertime trend of zonally asymmetric ozone in boreal extratropics during 1979-2016 |
title_full_unstemmed |
Long-term wintertime trend of zonally asymmetric ozone in boreal extratropics during 1979-2016 |
title_sort |
long-term wintertime trend of zonally asymmetric ozone in boreal extratropics during 1979-2016 |
publisher |
Basel : MDPI AG |
publishDate |
2018 |
url |
https://doi.org/10.34657/4632 https://oa.tib.eu/renate/handle/123456789/6003 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic |
genre_facet |
Arctic North Atlantic |
op_source |
Atmosphere 9 (2018), 12 |
op_rights |
CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.34657/4632 |
_version_ |
1766344508500344832 |