No severe ozone depletion in the tropical stratosphere in recent decades
Stratospheric ozone is an important constituent of the atmosphere. Significant changes in its concentrations have great consequences for the environment in general and for ecosystems in particular. Here, we analyse ground-based, ozonesonde and satellite ozone measurements to examine the ozone deplet...
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ftcopernicus:oai:publications.copernicus.org:egusphere115778 2024-09-15T17:41:19+00:00 No severe ozone depletion in the tropical stratosphere in recent decades Kuttippurath, Jayanarayanan Gopikrishnan, Gopalakrishna Pillai Müller, Rolf Godin-Beekmann, Sophie Brioude, Jerome 2024-06-12 application/pdf https://doi.org/10.5194/egusphere-2023-2574 https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2574/ eng eng doi:10.5194/egusphere-2023-2574 https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2574/ eISSN: Text 2024 ftcopernicus https://doi.org/10.5194/egusphere-2023-2574 2024-08-28T05:24:15Z Stratospheric ozone is an important constituent of the atmosphere. Significant changes in its concentrations have great consequences for the environment in general and for ecosystems in particular. Here, we analyse ground-based, ozonesonde and satellite ozone measurements to examine the ozone depletion and the spatiotemporal trends in ozone in the tropics during the past 5 decades (1980–2020). The amount of column ozone in the tropics is relatively small (250–270 DU) compared to high and mid-latitudes (Northern Hemisphere (NH) 275–425 DU; Southern Hemisphere (SH) 275–350 DU). In addition, the tropical total ozone trend is very small ( ± 0–0.2 DU yr −1 ), as estimated for the period 1998–2022. No observational evidence is found regarding the indications or signatures of severe stratospheric ozone depletion in the tropics in contrast to a recent claim. Finally, current understanding and observational evidence do not provide any support for the possibility of an ozone hole occurring outside Antarctica today with respect to the present-day stratospheric halogen levels. Text Antarc* Antarctica Copernicus Publications: E-Journals |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
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English |
description |
Stratospheric ozone is an important constituent of the atmosphere. Significant changes in its concentrations have great consequences for the environment in general and for ecosystems in particular. Here, we analyse ground-based, ozonesonde and satellite ozone measurements to examine the ozone depletion and the spatiotemporal trends in ozone in the tropics during the past 5 decades (1980–2020). The amount of column ozone in the tropics is relatively small (250–270 DU) compared to high and mid-latitudes (Northern Hemisphere (NH) 275–425 DU; Southern Hemisphere (SH) 275–350 DU). In addition, the tropical total ozone trend is very small ( ± 0–0.2 DU yr −1 ), as estimated for the period 1998–2022. No observational evidence is found regarding the indications or signatures of severe stratospheric ozone depletion in the tropics in contrast to a recent claim. Finally, current understanding and observational evidence do not provide any support for the possibility of an ozone hole occurring outside Antarctica today with respect to the present-day stratospheric halogen levels. |
format |
Text |
author |
Kuttippurath, Jayanarayanan Gopikrishnan, Gopalakrishna Pillai Müller, Rolf Godin-Beekmann, Sophie Brioude, Jerome |
spellingShingle |
Kuttippurath, Jayanarayanan Gopikrishnan, Gopalakrishna Pillai Müller, Rolf Godin-Beekmann, Sophie Brioude, Jerome No severe ozone depletion in the tropical stratosphere in recent decades |
author_facet |
Kuttippurath, Jayanarayanan Gopikrishnan, Gopalakrishna Pillai Müller, Rolf Godin-Beekmann, Sophie Brioude, Jerome |
author_sort |
Kuttippurath, Jayanarayanan |
title |
No severe ozone depletion in the tropical stratosphere in recent decades |
title_short |
No severe ozone depletion in the tropical stratosphere in recent decades |
title_full |
No severe ozone depletion in the tropical stratosphere in recent decades |
title_fullStr |
No severe ozone depletion in the tropical stratosphere in recent decades |
title_full_unstemmed |
No severe ozone depletion in the tropical stratosphere in recent decades |
title_sort |
no severe ozone depletion in the tropical stratosphere in recent decades |
publishDate |
2024 |
url |
https://doi.org/10.5194/egusphere-2023-2574 https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2574/ |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
eISSN: |
op_relation |
doi:10.5194/egusphere-2023-2574 https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2574/ |
op_doi |
https://doi.org/10.5194/egusphere-2023-2574 |
_version_ |
1810487481434374144 |