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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Online Access: | https://doi.org/10.1029/2021GL095232 |
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ftncar:oai:drupal-site.org:articles_24885 2024-04-14T08:04:39+00:00 On Recent Large Antarctic Ozone Holes and Ozone Recovery Metrics Stone, K. A. (author) Solomon, S. (author) Kinnison, Douglas E. (author) Mills, Michael J. (author) 2021-11-28 https://doi.org/10.1029/2021GL095232 en eng Geophysical Research Letters--Geophys Res Lett--0094-8276--1944-8007 VolcanEESM: Global volcanic sulphur dioxide (SO2) emissions database from 1850 to present - Version 1.0--10.5285/76ebdc0b-0eed-4f70-b89e-55e606bcd568 Model data for: Prediction of Northern Hemisphere regional sea ice extent and snow depth using stratospheric ozone information--10.7910/DVN/V5R9WV articles:24885 doi:10.1029/2021GL095232 ark:/85065/d70z76s7 Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.e2021GL095232 article Text 2021 ftncar https://doi.org/10.1029/2021GL095232 2024-03-21T18:00:26Z 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. 80NSSC19K0952 Article in Journal/Newspaper Antarc* Antarctic OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Antarctic Geophysical Research Letters 48 22 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
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. 80NSSC19K0952 |
author2 |
Stone, K. A. (author) Solomon, S. (author) Kinnison, Douglas E. (author) Mills, Michael J. (author) |
format |
Article in Journal/Newspaper |
title |
On Recent Large Antarctic Ozone Holes and Ozone Recovery Metrics |
spellingShingle |
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 |
publishDate |
2021 |
url |
https://doi.org/10.1029/2021GL095232 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Geophysical Research Letters--Geophys Res Lett--0094-8276--1944-8007 VolcanEESM: Global volcanic sulphur dioxide (SO2) emissions database from 1850 to present - Version 1.0--10.5285/76ebdc0b-0eed-4f70-b89e-55e606bcd568 Model data for: Prediction of Northern Hemisphere regional sea ice extent and snow depth using stratospheric ozone information--10.7910/DVN/V5R9WV articles:24885 doi:10.1029/2021GL095232 ark:/85065/d70z76s7 |
op_rights |
Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.e2021GL095232 |
op_doi |
https://doi.org/10.1029/2021GL095232 |
container_title |
Geophysical Research Letters |
container_volume |
48 |
container_issue |
22 |
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1796301334500081664 |