Exceptional loss in ozone in the Arctic winter/spring of 2019/2020
Severe vortex-wide ozone loss in the Arctic would expose both ecosystems and several millions of people to unhealthy ultraviolet radiation. Adding to these worries, and extreme events as the harbingers of climate change, exceptionally low ozone with column values below 220 DU occurred over the Arcti...
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ftcopernicus:oai:publications.copernicus.org:acp92027 2023-05-15T14:02:17+02:00 Exceptional loss in ozone in the Arctic winter/spring of 2019/2020 Kuttippurath, Jayanarayanan Feng, Wuhu Müller, Rolf Kumar, Pankaj Raj, Sarath Gopikrishnan, Gopalakrishna Pillai Roy, Raina 2021-09-21 application/pdf https://doi.org/10.5194/acp-21-14019-2021 https://acp.copernicus.org/articles/21/14019/2021/ eng eng doi:10.5194/acp-21-14019-2021 https://acp.copernicus.org/articles/21/14019/2021/ eISSN: 1680-7324 Text 2021 ftcopernicus https://doi.org/10.5194/acp-21-14019-2021 2021-09-27T16:22:26Z Severe vortex-wide ozone loss in the Arctic would expose both ecosystems and several millions of people to unhealthy ultraviolet radiation. Adding to these worries, and extreme events as the harbingers of climate change, exceptionally low ozone with column values below 220 DU occurred over the Arctic in March and April 2020. Sporadic occurrences of low ozone with less than 220 DU at different regions of the vortex for almost 3 weeks were found for the first time in the observed history in the Arctic. Furthermore, a large ozone loss of about 2.0–3.4 ppmv triggered by an unprecedented chlorine activation (1.5–2.2 ppbv) matching the levels occurring in the Antarctic was also observed. The polar processing situation led to the first-ever appearance of loss saturation in the Arctic. Apart from these, there were also ozone-mini holes in December 2019 and January 2020 driven by atmospheric dynamics. The large loss in ozone in the colder Arctic winters is intriguing and demands rigorous monitoring of the region. Text Antarc* Antarctic Arctic Climate change Copernicus Publications: E-Journals Antarctic Arctic The Antarctic Atmospheric Chemistry and Physics 21 18 14019 14037 |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
Severe vortex-wide ozone loss in the Arctic would expose both ecosystems and several millions of people to unhealthy ultraviolet radiation. Adding to these worries, and extreme events as the harbingers of climate change, exceptionally low ozone with column values below 220 DU occurred over the Arctic in March and April 2020. Sporadic occurrences of low ozone with less than 220 DU at different regions of the vortex for almost 3 weeks were found for the first time in the observed history in the Arctic. Furthermore, a large ozone loss of about 2.0–3.4 ppmv triggered by an unprecedented chlorine activation (1.5–2.2 ppbv) matching the levels occurring in the Antarctic was also observed. The polar processing situation led to the first-ever appearance of loss saturation in the Arctic. Apart from these, there were also ozone-mini holes in December 2019 and January 2020 driven by atmospheric dynamics. The large loss in ozone in the colder Arctic winters is intriguing and demands rigorous monitoring of the region. |
format |
Text |
author |
Kuttippurath, Jayanarayanan Feng, Wuhu Müller, Rolf Kumar, Pankaj Raj, Sarath Gopikrishnan, Gopalakrishna Pillai Roy, Raina |
spellingShingle |
Kuttippurath, Jayanarayanan Feng, Wuhu Müller, Rolf Kumar, Pankaj Raj, Sarath Gopikrishnan, Gopalakrishna Pillai Roy, Raina Exceptional loss in ozone in the Arctic winter/spring of 2019/2020 |
author_facet |
Kuttippurath, Jayanarayanan Feng, Wuhu Müller, Rolf Kumar, Pankaj Raj, Sarath Gopikrishnan, Gopalakrishna Pillai Roy, Raina |
author_sort |
Kuttippurath, Jayanarayanan |
title |
Exceptional loss in ozone in the Arctic winter/spring of 2019/2020 |
title_short |
Exceptional loss in ozone in the Arctic winter/spring of 2019/2020 |
title_full |
Exceptional loss in ozone in the Arctic winter/spring of 2019/2020 |
title_fullStr |
Exceptional loss in ozone in the Arctic winter/spring of 2019/2020 |
title_full_unstemmed |
Exceptional loss in ozone in the Arctic winter/spring of 2019/2020 |
title_sort |
exceptional loss in ozone in the arctic winter/spring of 2019/2020 |
publishDate |
2021 |
url |
https://doi.org/10.5194/acp-21-14019-2021 https://acp.copernicus.org/articles/21/14019/2021/ |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
Antarc* Antarctic Arctic Climate change |
genre_facet |
Antarc* Antarctic Arctic Climate change |
op_source |
eISSN: 1680-7324 |
op_relation |
doi:10.5194/acp-21-14019-2021 https://acp.copernicus.org/articles/21/14019/2021/ |
op_doi |
https://doi.org/10.5194/acp-21-14019-2021 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
21 |
container_issue |
18 |
container_start_page |
14019 |
op_container_end_page |
14037 |
_version_ |
1766272463254061056 |