Potential drivers of the recent large Antarctic ozone holes
Abstract The past three years (2020–2022) have witnessed the re-emergence of large, long-lived ozone holes over Antarctica. Understanding ozone variability remains of high importance due to the major role Antarctic stratospheric ozone plays in climate variability across the Southern Hemisphere. Clim...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-11-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-42637-0 |
| _version_ | 1797452183767089152 |
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| author | Hannah E. Kessenich Annika Seppälä Craig J. Rodger |
| author_facet | Hannah E. Kessenich Annika Seppälä Craig J. Rodger |
| author_sort | Hannah E. Kessenich |
| collection | DOAJ |
| description | Abstract The past three years (2020–2022) have witnessed the re-emergence of large, long-lived ozone holes over Antarctica. Understanding ozone variability remains of high importance due to the major role Antarctic stratospheric ozone plays in climate variability across the Southern Hemisphere. Climate change has already incited new sources of ozone depletion, and the atmospheric abundance of several chlorofluorocarbons has recently been on the rise. In this work, we take a comprehensive look at the monthly and daily ozone changes at different altitudes and latitudes within the Antarctic ozone hole. Following indications of early-spring recovery, the October middle stratosphere is dominated by continued, significant ozone reduction since 2004, amounting to 26% loss in the core of the ozone hole. We link the declines in mid-spring Antarctic ozone to dynamical changes in mesospheric descent within the polar vortex, highlighting the importance of continued monitoring of the state of the ozone layer. |
| first_indexed | 2024-03-09T15:04:11Z |
| format | Article |
| id | doaj.art-9fd5f8de21084f0fb455b8c85708cb57 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-09T15:04:11Z |
| publishDate | 2023-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-9fd5f8de21084f0fb455b8c85708cb572023-11-26T13:44:03ZengNature PortfolioNature Communications2041-17232023-11-011411910.1038/s41467-023-42637-0Potential drivers of the recent large Antarctic ozone holesHannah E. Kessenich0Annika Seppälä1Craig J. Rodger2Department of Physics, University of OtagoDepartment of Physics, University of OtagoDepartment of Physics, University of OtagoAbstract The past three years (2020–2022) have witnessed the re-emergence of large, long-lived ozone holes over Antarctica. Understanding ozone variability remains of high importance due to the major role Antarctic stratospheric ozone plays in climate variability across the Southern Hemisphere. Climate change has already incited new sources of ozone depletion, and the atmospheric abundance of several chlorofluorocarbons has recently been on the rise. In this work, we take a comprehensive look at the monthly and daily ozone changes at different altitudes and latitudes within the Antarctic ozone hole. Following indications of early-spring recovery, the October middle stratosphere is dominated by continued, significant ozone reduction since 2004, amounting to 26% loss in the core of the ozone hole. We link the declines in mid-spring Antarctic ozone to dynamical changes in mesospheric descent within the polar vortex, highlighting the importance of continued monitoring of the state of the ozone layer.https://doi.org/10.1038/s41467-023-42637-0 |
| spellingShingle | Hannah E. Kessenich Annika Seppälä Craig J. Rodger Potential drivers of the recent large Antarctic ozone holes Nature Communications |
| title | Potential drivers of the recent large Antarctic ozone holes |
| title_full | Potential drivers of the recent large Antarctic ozone holes |
| title_fullStr | Potential drivers of the recent large Antarctic ozone holes |
| title_full_unstemmed | Potential drivers of the recent large Antarctic ozone holes |
| title_short | Potential drivers of the recent large Antarctic ozone holes |
| title_sort | potential drivers of the recent large antarctic ozone holes |
| url | https://doi.org/10.1038/s41467-023-42637-0 |
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