The 2010 Antarctic ozone hole: Observed reduction in ozone destruction by minor sudden stratospheric warmings
Satellite observations show that the 2010 Antarctic ozone hole is characterized by anomalously small amounts of photochemical ozone destruction (40-60% less than the 2005-2009 average). Observations from the MLS instrument show that this is mainly related to reduced photochemical ozone destruction b...
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ftpubmed:oai:pubmedcentral.nih.gov:3216525 2023-05-15T13:48:01+02:00 The 2010 Antarctic ozone hole: Observed reduction in ozone destruction by minor sudden stratospheric warmings de Laat, A. T. J. van Weele, M. 2011-07-14 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3216525 http://www.ncbi.nlm.nih.gov/pubmed/22355557 https://doi.org/10.1038/srep00038 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3216525 http://www.ncbi.nlm.nih.gov/pubmed/22355557 http://dx.doi.org/10.1038/srep00038 Copyright © 2011, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-sa/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareALike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ CC-BY-NC-SA Article Text 2011 ftpubmed https://doi.org/10.1038/srep00038 2013-09-03T22:37:04Z Satellite observations show that the 2010 Antarctic ozone hole is characterized by anomalously small amounts of photochemical ozone destruction (40-60% less than the 2005-2009 average). Observations from the MLS instrument show that this is mainly related to reduced photochemical ozone destruction between 20-25 km altitude. Lower down between 15-20 km the atmospheric chemical composition and photochemical ozone destruction is unaffected. The modified chemical composition and chemistry between 20-25 km altitude in 2010 is related to the occurrence of a mid-winter minor Antarctic Sudden Stratospheric Warming (SSW). The measurements indicate that the changes in chemical composition are related to downward motion of air masses rather than horizontal mixing, and affect stratospheric chemistry for several months. Since 1979, years with similar anomalously small amounts of ozone destruction are all characterized by either minor or major SSWs, illustrating that their presence has been a necessary pre-condition for reduced Antarctic stratospheric ozone destruction. Text Antarc* Antarctic PubMed Central (PMC) Antarctic Scientific Reports 1 1 |
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Article de Laat, A. T. J. van Weele, M. The 2010 Antarctic ozone hole: Observed reduction in ozone destruction by minor sudden stratospheric warmings |
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Article |
description |
Satellite observations show that the 2010 Antarctic ozone hole is characterized by anomalously small amounts of photochemical ozone destruction (40-60% less than the 2005-2009 average). Observations from the MLS instrument show that this is mainly related to reduced photochemical ozone destruction between 20-25 km altitude. Lower down between 15-20 km the atmospheric chemical composition and photochemical ozone destruction is unaffected. The modified chemical composition and chemistry between 20-25 km altitude in 2010 is related to the occurrence of a mid-winter minor Antarctic Sudden Stratospheric Warming (SSW). The measurements indicate that the changes in chemical composition are related to downward motion of air masses rather than horizontal mixing, and affect stratospheric chemistry for several months. Since 1979, years with similar anomalously small amounts of ozone destruction are all characterized by either minor or major SSWs, illustrating that their presence has been a necessary pre-condition for reduced Antarctic stratospheric ozone destruction. |
format |
Text |
author |
de Laat, A. T. J. van Weele, M. |
author_facet |
de Laat, A. T. J. van Weele, M. |
author_sort |
de Laat, A. T. J. |
title |
The 2010 Antarctic ozone hole: Observed reduction in ozone destruction by minor sudden stratospheric warmings |
title_short |
The 2010 Antarctic ozone hole: Observed reduction in ozone destruction by minor sudden stratospheric warmings |
title_full |
The 2010 Antarctic ozone hole: Observed reduction in ozone destruction by minor sudden stratospheric warmings |
title_fullStr |
The 2010 Antarctic ozone hole: Observed reduction in ozone destruction by minor sudden stratospheric warmings |
title_full_unstemmed |
The 2010 Antarctic ozone hole: Observed reduction in ozone destruction by minor sudden stratospheric warmings |
title_sort |
2010 antarctic ozone hole: observed reduction in ozone destruction by minor sudden stratospheric warmings |
publisher |
Nature Publishing Group |
publishDate |
2011 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3216525 http://www.ncbi.nlm.nih.gov/pubmed/22355557 https://doi.org/10.1038/srep00038 |
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Antarctic |
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Antarctic |
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Antarc* Antarctic |
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Antarc* Antarctic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3216525 http://www.ncbi.nlm.nih.gov/pubmed/22355557 http://dx.doi.org/10.1038/srep00038 |
op_rights |
Copyright © 2011, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-sa/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareALike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ |
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CC-BY-NC-SA |
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https://doi.org/10.1038/srep00038 |
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Scientific Reports |
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