The Antarctic ozone hole during 2012
We review the 2012 Antarctic ozone hole, making use of various meteorologicalreanalyses, remotely sensed ozone measurements and ground-based measurementsof ultra-violet radiation. Based on analysis of 33 years of satellite records,we find that the ozone hole of 2012 was one of the least severe since...
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ftunivtasecite:oai:ecite.utas.edu.au:119152 2023-05-15T13:49:03+02:00 The Antarctic ozone hole during 2012 Klekociuk, AR Tully, MB Krummel, PB Gies, HP Alexander, SP Fraser, PJ Henderson, SI Javorniczky, J Petelina, SV Shanklin, JD Schofield, R Stone, KA 2014 application/pdf http://www.bom.gov.au/jshess/papers2009-2015.shtml https://doi.org/10.22499/2.6404.007 http://ecite.utas.edu.au/119152 en eng Australia. Bureau of Meteorology http://ecite.utas.edu.au/119152/1/klekociuk2.pdf http://dx.doi.org/10.22499/2.6404.007 Klekociuk, AR and Tully, MB and Krummel, PB and Gies, HP and Alexander, SP and Fraser, PJ and Henderson, SI and Javorniczky, J and Petelina, SV and Shanklin, JD and Schofield, R and Stone, KA, The Antarctic ozone hole during 2012, Australian Meteorological and Oceanographic Journal, 64, (4) pp. 313-330. ISSN 1836-716X (2014) [Refereed Article] http://ecite.utas.edu.au/119152 Earth Sciences Atmospheric Sciences Meteorology Refereed Article PeerReviewed 2014 ftunivtasecite https://doi.org/10.22499/2.6404.007 2019-12-13T22:18:22Z We review the 2012 Antarctic ozone hole, making use of various meteorologicalreanalyses, remotely sensed ozone measurements and ground-based measurementsof ultra-violet radiation. Based on analysis of 33 years of satellite records,we find that the ozone hole of 2012 was one of the least severe since the late1980s in terms of maximum area, minimum ozone level and total ozone deficit.In particular, the estimated integrated ozone mass effectively depleted within theozone hole of 2012 was approximately 720 Mt, which is the 12th smallest deficiton record and 28 per cent of the peak deficit observed in 2006. The key factor inlimiting the extent of Antarctic ozone loss in 2012 was the relatively warm temperaturesthat occurred in the Antarctic stratosphere from early July. These warmtemperatures, which were driven by dynamical activity, limited the activation ofozone depletion chemistry within the polar vortex during the latter part of thepolar winter. Additionally, dynamical disturbances to the polar cap region duringspring were aided by the prevailing phase of the Quasi-Biennial Oscillation (QBO)which was strongly negative (westward) and favouring the poleward propagationof heat flux anomalies; these disturbances resulted in the steady erosion of thevortex and caused it to breakdown relatively early compared to recent years. Themetrics for the Antarctic ozone hole of 2012 showed some similarity with thoseof 1988 and 2002 (which were years of anomalously small ozone holes) despite allthree years having distinctly different QBO indices indicating variant strengths ofthe polar vortex (and severity of ozone loss). Article in Journal/Newspaper Antarc* Antarctic eCite UTAS (University of Tasmania) Antarctic The Antarctic Australian Meteorological and Oceanographic Journal 64 4 313 330 |
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Open Polar |
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eCite UTAS (University of Tasmania) |
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ftunivtasecite |
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English |
topic |
Earth Sciences Atmospheric Sciences Meteorology |
spellingShingle |
Earth Sciences Atmospheric Sciences Meteorology Klekociuk, AR Tully, MB Krummel, PB Gies, HP Alexander, SP Fraser, PJ Henderson, SI Javorniczky, J Petelina, SV Shanklin, JD Schofield, R Stone, KA The Antarctic ozone hole during 2012 |
topic_facet |
Earth Sciences Atmospheric Sciences Meteorology |
description |
We review the 2012 Antarctic ozone hole, making use of various meteorologicalreanalyses, remotely sensed ozone measurements and ground-based measurementsof ultra-violet radiation. Based on analysis of 33 years of satellite records,we find that the ozone hole of 2012 was one of the least severe since the late1980s in terms of maximum area, minimum ozone level and total ozone deficit.In particular, the estimated integrated ozone mass effectively depleted within theozone hole of 2012 was approximately 720 Mt, which is the 12th smallest deficiton record and 28 per cent of the peak deficit observed in 2006. The key factor inlimiting the extent of Antarctic ozone loss in 2012 was the relatively warm temperaturesthat occurred in the Antarctic stratosphere from early July. These warmtemperatures, which were driven by dynamical activity, limited the activation ofozone depletion chemistry within the polar vortex during the latter part of thepolar winter. Additionally, dynamical disturbances to the polar cap region duringspring were aided by the prevailing phase of the Quasi-Biennial Oscillation (QBO)which was strongly negative (westward) and favouring the poleward propagationof heat flux anomalies; these disturbances resulted in the steady erosion of thevortex and caused it to breakdown relatively early compared to recent years. Themetrics for the Antarctic ozone hole of 2012 showed some similarity with thoseof 1988 and 2002 (which were years of anomalously small ozone holes) despite allthree years having distinctly different QBO indices indicating variant strengths ofthe polar vortex (and severity of ozone loss). |
format |
Article in Journal/Newspaper |
author |
Klekociuk, AR Tully, MB Krummel, PB Gies, HP Alexander, SP Fraser, PJ Henderson, SI Javorniczky, J Petelina, SV Shanklin, JD Schofield, R Stone, KA |
author_facet |
Klekociuk, AR Tully, MB Krummel, PB Gies, HP Alexander, SP Fraser, PJ Henderson, SI Javorniczky, J Petelina, SV Shanklin, JD Schofield, R Stone, KA |
author_sort |
Klekociuk, AR |
title |
The Antarctic ozone hole during 2012 |
title_short |
The Antarctic ozone hole during 2012 |
title_full |
The Antarctic ozone hole during 2012 |
title_fullStr |
The Antarctic ozone hole during 2012 |
title_full_unstemmed |
The Antarctic ozone hole during 2012 |
title_sort |
antarctic ozone hole during 2012 |
publisher |
Australia. Bureau of Meteorology |
publishDate |
2014 |
url |
http://www.bom.gov.au/jshess/papers2009-2015.shtml https://doi.org/10.22499/2.6404.007 http://ecite.utas.edu.au/119152 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
http://ecite.utas.edu.au/119152/1/klekociuk2.pdf http://dx.doi.org/10.22499/2.6404.007 Klekociuk, AR and Tully, MB and Krummel, PB and Gies, HP and Alexander, SP and Fraser, PJ and Henderson, SI and Javorniczky, J and Petelina, SV and Shanklin, JD and Schofield, R and Stone, KA, The Antarctic ozone hole during 2012, Australian Meteorological and Oceanographic Journal, 64, (4) pp. 313-330. ISSN 1836-716X (2014) [Refereed Article] http://ecite.utas.edu.au/119152 |
op_doi |
https://doi.org/10.22499/2.6404.007 |
container_title |
Australian Meteorological and Oceanographic Journal |
container_volume |
64 |
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4 |
container_start_page |
313 |
op_container_end_page |
330 |
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1766250717303013376 |