The Antarctic ozone hole during 2018 and 2019
While the Montreal Protocol is reducing stratospheric ozone loss, recent increases in some ozone depleting substance (ODS) emissions have been identified that may impact southern hemisphere climate systems. In this study, we discuss characteristics of the 2018 and 2019 Antarctic ozone holes using su...
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fttriple:oai:gotriple.eu:oai:doaj.org/article:3faa58b039bd441fa9ab1a6f2805df31 2023-05-15T13:32:55+02:00 The Antarctic ozone hole during 2018 and 2019 Gerald Nedoluha Paul J. Fraser Simon P. Alexander Sylvia Nichol Richard Querel Dan Smale Stuart I. Henderson Paul B. Krummel Matthew B. Tully Andrew R. Klekociuk 2021-01-01 https://doaj.org/article/3faa58b039bd441fa9ab1a6f2805df31 en eng CSIRO Publishing 2206-5865 https://doaj.org/article/3faa58b039bd441fa9ab1a6f2805df31 undefined Journal of Southern Hemisphere Earth Systems Science, Vol 71, Iss 1, Pp 66-91 (2021) Antarctica climate meteorology Montreal Protocol ozone ozone depletion geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple 2023-01-22T19:30:35Z While the Montreal Protocol is reducing stratospheric ozone loss, recent increases in some ozone depleting substance (ODS) emissions have been identified that may impact southern hemisphere climate systems. In this study, we discuss characteristics of the 2018 and 2019 Antarctic ozone holes using surface insitu, satellite and reanalysis data to gain a better understanding of recent ozone variability. These ozone holes had strongly contrasting characteristics. In 2018, the Antarctic stratospheric vortex was relatively stable and cold in comparison to most years of the prior decade. This resulted in a large and persistent ozone hole that ranked in the upper-tercile of metrics quantifying Antarctic ozone depletion. In contrast, strong stratospheric warming in the spring of 2019 curtailed the development of the ozone hole, causing it to be anomalously small and of similar size to ozone holes in the 1980s. As known from previous studies, the ability of planetary waves to propagate into the stratosphere at high latitudes is an important factor that influences temperatures of the polar vortex and the overall amount of ozone loss in any particular year. Disturbance and warming of the vortex by strong planetary wave activity were the dominant factors in the small 2019 ozone hole. In contrast, planetary wave disturbances to the vortex in the winter–spring of 2018 were much weaker than in 2019. These results increase our understanding of the impact of Montreal Protocol controls on ODS and the effects of Antarctic ozone on the southern hemisphere climate system. Article in Journal/Newspaper Antarc* Antarctic Antarctica Unknown Antarctic The Antarctic |
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Open Polar |
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language |
English |
topic |
Antarctica climate meteorology Montreal Protocol ozone ozone depletion geo envir |
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Antarctica climate meteorology Montreal Protocol ozone ozone depletion geo envir Gerald Nedoluha Paul J. Fraser Simon P. Alexander Sylvia Nichol Richard Querel Dan Smale Stuart I. Henderson Paul B. Krummel Matthew B. Tully Andrew R. Klekociuk The Antarctic ozone hole during 2018 and 2019 |
topic_facet |
Antarctica climate meteorology Montreal Protocol ozone ozone depletion geo envir |
description |
While the Montreal Protocol is reducing stratospheric ozone loss, recent increases in some ozone depleting substance (ODS) emissions have been identified that may impact southern hemisphere climate systems. In this study, we discuss characteristics of the 2018 and 2019 Antarctic ozone holes using surface insitu, satellite and reanalysis data to gain a better understanding of recent ozone variability. These ozone holes had strongly contrasting characteristics. In 2018, the Antarctic stratospheric vortex was relatively stable and cold in comparison to most years of the prior decade. This resulted in a large and persistent ozone hole that ranked in the upper-tercile of metrics quantifying Antarctic ozone depletion. In contrast, strong stratospheric warming in the spring of 2019 curtailed the development of the ozone hole, causing it to be anomalously small and of similar size to ozone holes in the 1980s. As known from previous studies, the ability of planetary waves to propagate into the stratosphere at high latitudes is an important factor that influences temperatures of the polar vortex and the overall amount of ozone loss in any particular year. Disturbance and warming of the vortex by strong planetary wave activity were the dominant factors in the small 2019 ozone hole. In contrast, planetary wave disturbances to the vortex in the winter–spring of 2018 were much weaker than in 2019. These results increase our understanding of the impact of Montreal Protocol controls on ODS and the effects of Antarctic ozone on the southern hemisphere climate system. |
format |
Article in Journal/Newspaper |
author |
Gerald Nedoluha Paul J. Fraser Simon P. Alexander Sylvia Nichol Richard Querel Dan Smale Stuart I. Henderson Paul B. Krummel Matthew B. Tully Andrew R. Klekociuk |
author_facet |
Gerald Nedoluha Paul J. Fraser Simon P. Alexander Sylvia Nichol Richard Querel Dan Smale Stuart I. Henderson Paul B. Krummel Matthew B. Tully Andrew R. Klekociuk |
author_sort |
Gerald Nedoluha |
title |
The Antarctic ozone hole during 2018 and 2019 |
title_short |
The Antarctic ozone hole during 2018 and 2019 |
title_full |
The Antarctic ozone hole during 2018 and 2019 |
title_fullStr |
The Antarctic ozone hole during 2018 and 2019 |
title_full_unstemmed |
The Antarctic ozone hole during 2018 and 2019 |
title_sort |
antarctic ozone hole during 2018 and 2019 |
publisher |
CSIRO Publishing |
publishDate |
2021 |
url |
https://doaj.org/article/3faa58b039bd441fa9ab1a6f2805df31 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Journal of Southern Hemisphere Earth Systems Science, Vol 71, Iss 1, Pp 66-91 (2021) |
op_relation |
2206-5865 https://doaj.org/article/3faa58b039bd441fa9ab1a6f2805df31 |
op_rights |
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1766037002245898240 |