On Recent Large Antarctic Ozone Holes and Ozone Recovery Metrics
The 2015 and 2020 ozone holes set record sizes in October-December. We show that these years, as well as other recent large ozone holes, still adhere to a fundamental recovery metric: the later onset of early spring ozone depletion as chlorine and bromine diminishes. This behavior is also captured i...
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2023
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ftmit:oai:dspace.mit.edu:1721.1/148243 2023-06-11T04:06:11+02:00 On Recent Large Antarctic Ozone Holes and Ozone Recovery Metrics Stone, KA Solomon, S Kinnison, DE Mills, Michael J Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences 2023-02-28T14:45:19Z application/pdf https://hdl.handle.net/1721.1/148243 en eng American Geophysical Union (AGU) 10.1029/2021GL095232 Geophysical Research Letters https://hdl.handle.net/1721.1/148243 Stone, KA, Solomon, S, Kinnison, DE and Mills, Michael J. 2021. "On Recent Large Antarctic Ozone Holes and Ozone Recovery Metrics." Geophysical Research Letters, 48 (22). Creative Commons Attribution NonCommercial License 4.0 https://creativecommons.org/licenses/by-nc/4.0/ Wiley Article http://purl.org/eprint/type/JournalArticle 2023 ftmit 2023-05-29T08:41:34Z The 2015 and 2020 ozone holes set record sizes in October-December. We show that these years, as well as other recent large ozone holes, still adhere to a fundamental recovery metric: the later onset of early spring ozone depletion as chlorine and bromine diminishes. This behavior is also captured in the Whole Atmosphere Chemistry Climate Model. We quantify observed recovery trends of the onset of the ozone hole and in the size of the September ozone hole, with good model agreement. A substantial reduction in ozone hole depth during September over the past decade is also seen. Our results indicate that, due to dynamical phenomena, it is likely that large ozone holes will continue to occur intermittently in October-December, but ozone recovery will still be detectable through the later onset, smaller, and less deep September ozone holes: metrics that are governed more by chemical processes. Article in Journal/Newspaper Antarc* Antarctic DSpace@MIT (Massachusetts Institute of Technology) Antarctic |
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DSpace@MIT (Massachusetts Institute of Technology) |
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ftmit |
language |
English |
description |
The 2015 and 2020 ozone holes set record sizes in October-December. We show that these years, as well as other recent large ozone holes, still adhere to a fundamental recovery metric: the later onset of early spring ozone depletion as chlorine and bromine diminishes. This behavior is also captured in the Whole Atmosphere Chemistry Climate Model. We quantify observed recovery trends of the onset of the ozone hole and in the size of the September ozone hole, with good model agreement. A substantial reduction in ozone hole depth during September over the past decade is also seen. Our results indicate that, due to dynamical phenomena, it is likely that large ozone holes will continue to occur intermittently in October-December, but ozone recovery will still be detectable through the later onset, smaller, and less deep September ozone holes: metrics that are governed more by chemical processes. |
author2 |
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences |
format |
Article in Journal/Newspaper |
author |
Stone, KA Solomon, S Kinnison, DE Mills, Michael J |
spellingShingle |
Stone, KA Solomon, S Kinnison, DE Mills, Michael J On Recent Large Antarctic Ozone Holes and Ozone Recovery Metrics |
author_facet |
Stone, KA Solomon, S Kinnison, DE Mills, Michael J |
author_sort |
Stone, KA |
title |
On Recent Large Antarctic Ozone Holes and Ozone Recovery Metrics |
title_short |
On Recent Large Antarctic Ozone Holes and Ozone Recovery Metrics |
title_full |
On Recent Large Antarctic Ozone Holes and Ozone Recovery Metrics |
title_fullStr |
On Recent Large Antarctic Ozone Holes and Ozone Recovery Metrics |
title_full_unstemmed |
On Recent Large Antarctic Ozone Holes and Ozone Recovery Metrics |
title_sort |
on recent large antarctic ozone holes and ozone recovery metrics |
publisher |
American Geophysical Union (AGU) |
publishDate |
2023 |
url |
https://hdl.handle.net/1721.1/148243 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Wiley |
op_relation |
10.1029/2021GL095232 Geophysical Research Letters https://hdl.handle.net/1721.1/148243 Stone, KA, Solomon, S, Kinnison, DE and Mills, Michael J. 2021. "On Recent Large Antarctic Ozone Holes and Ozone Recovery Metrics." Geophysical Research Letters, 48 (22). |
op_rights |
Creative Commons Attribution NonCommercial License 4.0 https://creativecommons.org/licenses/by-nc/4.0/ |
_version_ |
1768377996030246912 |