Technical note: Intermittent reduction of the stratospheric ozone over northern Europe caused by a storm in the Atlantic Ocean
A 3 d episode of anomalously low ozone concentrations in the stratosphere over northern Europe occurred on 3–5 November 2018. A reduction of the total ozone column down to ∼ 200–210 Dobson units was predicted by the global forecasts of the System for Integrated modeLling of Atmospheric coMposition (...
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ftdoajarticles:oai:doaj.org/article:fcc0a0f72b164b0bb99f95f6ba7b1508 2023-05-15T16:29:54+02:00 Technical note: Intermittent reduction of the stratospheric ozone over northern Europe caused by a storm in the Atlantic Ocean M. Sofiev R. Kouznetsov R. Hänninen V. F. Sofieva 2020-02-01T00:00:00Z https://doi.org/10.5194/acp-20-1839-2020 https://doaj.org/article/fcc0a0f72b164b0bb99f95f6ba7b1508 EN eng Copernicus Publications https://www.atmos-chem-phys.net/20/1839/2020/acp-20-1839-2020.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-20-1839-2020 1680-7316 1680-7324 https://doaj.org/article/fcc0a0f72b164b0bb99f95f6ba7b1508 Atmospheric Chemistry and Physics, Vol 20, Pp 1839-1847 (2020) Physics QC1-999 Chemistry QD1-999 article 2020 ftdoajarticles https://doi.org/10.5194/acp-20-1839-2020 2022-12-31T12:53:07Z A 3 d episode of anomalously low ozone concentrations in the stratosphere over northern Europe occurred on 3–5 November 2018. A reduction of the total ozone column down to ∼ 200–210 Dobson units was predicted by the global forecasts of the System for Integrated modeLling of Atmospheric coMposition (SILAM) driven by the weather forecast of the Integrated Forecasting System (IFS) of the European Centre for Medium-Range Weather Forecasts (ECMWF). The reduction down to 210–215 DU was subsequently observed by satellite instruments, such as the Ozone Monitoring Instrument (OMI) and Ozone Mapping Profile Suite (OMPS). The episode was caused by an intrusion of tropospheric air, which was initially uplifted by a storm in the northern Atlantic, south-east of Greenland. Subsequent transport towards the east and further uplift over the Scandinavian ridge of this humid and low-ozone air brought it to ∼25 km altitude, causing ∼30 % reduction of the ozone layer thickness over northern Europe. The low-ozone air was further transported eastwards and diluted over Siberia, so that the ozone concentrations were restored a few days later. Comparison of the model predictions with OMI, OMPS, and MLS (Microwave Limb Sounder) satellites demonstrated the high accuracy of the 5 d forecast of the IFS–SILAM system: the ozone anomaly was predicted within ∼10 DU accuracy and positioned within a couple of hundreds of kilometres. This episode showed the importance of the stratospheric composition dynamics and the possibility of its short-term forecasting, including such rare events. Article in Journal/Newspaper Greenland Siberia Directory of Open Access Journals: DOAJ Articles Greenland Atmospheric Chemistry and Physics 20 3 1839 1847 |
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Physics QC1-999 Chemistry QD1-999 |
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Physics QC1-999 Chemistry QD1-999 M. Sofiev R. Kouznetsov R. Hänninen V. F. Sofieva Technical note: Intermittent reduction of the stratospheric ozone over northern Europe caused by a storm in the Atlantic Ocean |
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Physics QC1-999 Chemistry QD1-999 |
description |
A 3 d episode of anomalously low ozone concentrations in the stratosphere over northern Europe occurred on 3–5 November 2018. A reduction of the total ozone column down to ∼ 200–210 Dobson units was predicted by the global forecasts of the System for Integrated modeLling of Atmospheric coMposition (SILAM) driven by the weather forecast of the Integrated Forecasting System (IFS) of the European Centre for Medium-Range Weather Forecasts (ECMWF). The reduction down to 210–215 DU was subsequently observed by satellite instruments, such as the Ozone Monitoring Instrument (OMI) and Ozone Mapping Profile Suite (OMPS). The episode was caused by an intrusion of tropospheric air, which was initially uplifted by a storm in the northern Atlantic, south-east of Greenland. Subsequent transport towards the east and further uplift over the Scandinavian ridge of this humid and low-ozone air brought it to ∼25 km altitude, causing ∼30 % reduction of the ozone layer thickness over northern Europe. The low-ozone air was further transported eastwards and diluted over Siberia, so that the ozone concentrations were restored a few days later. Comparison of the model predictions with OMI, OMPS, and MLS (Microwave Limb Sounder) satellites demonstrated the high accuracy of the 5 d forecast of the IFS–SILAM system: the ozone anomaly was predicted within ∼10 DU accuracy and positioned within a couple of hundreds of kilometres. This episode showed the importance of the stratospheric composition dynamics and the possibility of its short-term forecasting, including such rare events. |
format |
Article in Journal/Newspaper |
author |
M. Sofiev R. Kouznetsov R. Hänninen V. F. Sofieva |
author_facet |
M. Sofiev R. Kouznetsov R. Hänninen V. F. Sofieva |
author_sort |
M. Sofiev |
title |
Technical note: Intermittent reduction of the stratospheric ozone over northern Europe caused by a storm in the Atlantic Ocean |
title_short |
Technical note: Intermittent reduction of the stratospheric ozone over northern Europe caused by a storm in the Atlantic Ocean |
title_full |
Technical note: Intermittent reduction of the stratospheric ozone over northern Europe caused by a storm in the Atlantic Ocean |
title_fullStr |
Technical note: Intermittent reduction of the stratospheric ozone over northern Europe caused by a storm in the Atlantic Ocean |
title_full_unstemmed |
Technical note: Intermittent reduction of the stratospheric ozone over northern Europe caused by a storm in the Atlantic Ocean |
title_sort |
technical note: intermittent reduction of the stratospheric ozone over northern europe caused by a storm in the atlantic ocean |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/acp-20-1839-2020 https://doaj.org/article/fcc0a0f72b164b0bb99f95f6ba7b1508 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Siberia |
genre_facet |
Greenland Siberia |
op_source |
Atmospheric Chemistry and Physics, Vol 20, Pp 1839-1847 (2020) |
op_relation |
https://www.atmos-chem-phys.net/20/1839/2020/acp-20-1839-2020.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-20-1839-2020 1680-7316 1680-7324 https://doaj.org/article/fcc0a0f72b164b0bb99f95f6ba7b1508 |
op_doi |
https://doi.org/10.5194/acp-20-1839-2020 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
20 |
container_issue |
3 |
container_start_page |
1839 |
op_container_end_page |
1847 |
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