Ozone zonal asymmetry and planetary wave characterization during Antarctic spring
A large zonal asymmetry of ozone has been observed over Antarctica during winter-spring, when the ozone hole develops. It is caused by a planetary wave-driven displacement of the polar vortex. The total ozone data by OMI (Ozone Monitoring Instrument) and the ozone profiles by MLS (Microwave Limb Sou...
Published in: | Atmospheric Chemistry and Physics |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2012
|
Subjects: | |
Online Access: | https://doi.org/10.5194/acp-12-2603-2012 https://doaj.org/article/01a0b87c2cff44b9b9b8be3e3c96ae05 |
id |
ftdoajarticles:oai:doaj.org/article:01a0b87c2cff44b9b9b8be3e3c96ae05 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:01a0b87c2cff44b9b9b8be3e3c96ae05 2023-05-15T13:47:51+02:00 Ozone zonal asymmetry and planetary wave characterization during Antarctic spring I. Ialongo V. Sofieva N. Kalakoski J. Tamminen E. Kyrölä 2012-03-01T00:00:00Z https://doi.org/10.5194/acp-12-2603-2012 https://doaj.org/article/01a0b87c2cff44b9b9b8be3e3c96ae05 EN eng Copernicus Publications http://www.atmos-chem-phys.net/12/2603/2012/acp-12-2603-2012.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-12-2603-2012 1680-7316 1680-7324 https://doaj.org/article/01a0b87c2cff44b9b9b8be3e3c96ae05 Atmospheric Chemistry and Physics, Vol 12, Iss 5, Pp 2603-2614 (2012) Physics QC1-999 Chemistry QD1-999 article 2012 ftdoajarticles https://doi.org/10.5194/acp-12-2603-2012 2022-12-31T05:30:02Z A large zonal asymmetry of ozone has been observed over Antarctica during winter-spring, when the ozone hole develops. It is caused by a planetary wave-driven displacement of the polar vortex. The total ozone data by OMI (Ozone Monitoring Instrument) and the ozone profiles by MLS (Microwave Limb Sounder) and GOMOS (Global Ozone Monitoring by Occultation of Stars) were analysed to characterize the ozone zonal asymmetry and the wave activity during Antarctic spring. Both total ozone and profile data have shown a persistent zonal asymmetry over the last years, which is usually observed from September to mid-December. The largest amplitudes of planetary waves at 65° S (the perturbations can achieve up to 50% of zonal mean values) is observed in October. The wave activity is dominated by the quasi-stationary wave 1 component, while the wave 2 is mainly an eastward travelling wave. Wave numbers 1 and 2 generally explain more than the 90% of the ozone longitudinal variations. Both GOMOS and MLS ozone profile data show that ozone zonal asymmetry covers the whole stratosphere and extends up to the altitudes of 60–65 km. The wave amplitudes in ozone mixing ratio decay with altitude, with maxima (up to 50%) below 30 km. The characterization of the ozone zonal asymmetry has become important in the climate research. The inclusion of the polar zonal asymmetry in the climate models is essential for an accurate estimation of the future temperature trends. This information might also be important for retrieval algorithms that rely on ozone a priori information. Article in Journal/Newspaper Antarc* Antarctic Antarctica Directory of Open Access Journals: DOAJ Articles Antarctic Atmospheric Chemistry and Physics 12 5 2603 2614 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 I. Ialongo V. Sofieva N. Kalakoski J. Tamminen E. Kyrölä Ozone zonal asymmetry and planetary wave characterization during Antarctic spring |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
A large zonal asymmetry of ozone has been observed over Antarctica during winter-spring, when the ozone hole develops. It is caused by a planetary wave-driven displacement of the polar vortex. The total ozone data by OMI (Ozone Monitoring Instrument) and the ozone profiles by MLS (Microwave Limb Sounder) and GOMOS (Global Ozone Monitoring by Occultation of Stars) were analysed to characterize the ozone zonal asymmetry and the wave activity during Antarctic spring. Both total ozone and profile data have shown a persistent zonal asymmetry over the last years, which is usually observed from September to mid-December. The largest amplitudes of planetary waves at 65° S (the perturbations can achieve up to 50% of zonal mean values) is observed in October. The wave activity is dominated by the quasi-stationary wave 1 component, while the wave 2 is mainly an eastward travelling wave. Wave numbers 1 and 2 generally explain more than the 90% of the ozone longitudinal variations. Both GOMOS and MLS ozone profile data show that ozone zonal asymmetry covers the whole stratosphere and extends up to the altitudes of 60–65 km. The wave amplitudes in ozone mixing ratio decay with altitude, with maxima (up to 50%) below 30 km. The characterization of the ozone zonal asymmetry has become important in the climate research. The inclusion of the polar zonal asymmetry in the climate models is essential for an accurate estimation of the future temperature trends. This information might also be important for retrieval algorithms that rely on ozone a priori information. |
format |
Article in Journal/Newspaper |
author |
I. Ialongo V. Sofieva N. Kalakoski J. Tamminen E. Kyrölä |
author_facet |
I. Ialongo V. Sofieva N. Kalakoski J. Tamminen E. Kyrölä |
author_sort |
I. Ialongo |
title |
Ozone zonal asymmetry and planetary wave characterization during Antarctic spring |
title_short |
Ozone zonal asymmetry and planetary wave characterization during Antarctic spring |
title_full |
Ozone zonal asymmetry and planetary wave characterization during Antarctic spring |
title_fullStr |
Ozone zonal asymmetry and planetary wave characterization during Antarctic spring |
title_full_unstemmed |
Ozone zonal asymmetry and planetary wave characterization during Antarctic spring |
title_sort |
ozone zonal asymmetry and planetary wave characterization during antarctic spring |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/acp-12-2603-2012 https://doaj.org/article/01a0b87c2cff44b9b9b8be3e3c96ae05 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Atmospheric Chemistry and Physics, Vol 12, Iss 5, Pp 2603-2614 (2012) |
op_relation |
http://www.atmos-chem-phys.net/12/2603/2012/acp-12-2603-2012.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-12-2603-2012 1680-7316 1680-7324 https://doaj.org/article/01a0b87c2cff44b9b9b8be3e3c96ae05 |
op_doi |
https://doi.org/10.5194/acp-12-2603-2012 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
12 |
container_issue |
5 |
container_start_page |
2603 |
op_container_end_page |
2614 |
_version_ |
1766247940768137216 |