Global, regional and seasonal analysis of total ozone trends derived from the 1995–2020 GTO-ECV climate data record
We present an updated perspective on near-global total ozone trends for the period 1995–2020. We use the GOME-type (Global Ozone Monitoring Experiment) Total Ozone Essential Climate Variable (GTO-ECV) satellite data record which has been extended and generated as part of the European Space Agency...
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ftdlr:oai:elib.dlr.de:190145 2023-11-12T04:22:45+01:00 Global, regional and seasonal analysis of total ozone trends derived from the 1995–2020 GTO-ECV climate data record Coldewey-Egbers, Melanie Loyola, Diego Lerot, Christophe Van Roozendael, Michel 2022-05-25 application/pdf https://elib.dlr.de/190145/ https://elib.dlr.de/190145/1/acp-22-6861-2022.pdf https://acp.copernicus.org/articles/22/6861/2022/ en eng Copernicus Publications https://elib.dlr.de/190145/1/acp-22-6861-2022.pdf Coldewey-Egbers, Melanie und Loyola, Diego und Lerot, Christophe und Van Roozendael, Michel (2022) Global, regional and seasonal analysis of total ozone trends derived from the 1995–2020 GTO-ECV climate data record. Atmospheric Chemistry and Physics (ACP), 22, Seiten 6861-6878. Copernicus Publications. doi:10.5194/acp-22-6861-2022 <https://doi.org/10.5194/acp-22-6861-2022>. ISSN 1680-7316. cc_by Atmosphärenprozessoren Zeitschriftenbeitrag PeerReviewed 2022 ftdlr https://doi.org/10.5194/acp-22-6861-2022 2023-10-30T00:24:20Z We present an updated perspective on near-global total ozone trends for the period 1995–2020. We use the GOME-type (Global Ozone Monitoring Experiment) Total Ozone Essential Climate Variable (GTO-ECV) satellite data record which has been extended and generated as part of the European Space Agency's Climate Change Initiative (ESA-CCI) and European Union Copernicus Climate Change Service (EU-C3S) ozone projects. The focus of our work is to examine the regional patterns and seasonal dependency of the ozone trend. In the Southern Hemisphere we found regions that indicate statistically significant positive trends increasing from 0.6 ± 0.5(2σ) % per decade in the subtropics to 1.0 ± 0.9 % per decade in the middle latitudes and 2.8 ± 2.6 % per decade in the latitude band 60–70∘ S. In the middle latitudes of the Northern Hemisphere the trend exhibits distinct regional patterns, i.e., latitudinal and longitudinal structures. Significant positive trends (∼ 1.5 ± 1.0 % per decade) over the North Atlantic region, as well as barely significant negative trends (−1.0 ± 1.0 % per decade) over eastern Europe, were found. Moreover, these trends correlate with long-term changes in tropopause pressure. Total ozone trends in the tropics are not statistically significant. Regarding the seasonal dependence of the trends we found only very small variations over the course of the year. However, we identified different behavior depending on latitude. In the latitude band 40–70∘ N the positive trend maximizes in boreal winter from December to February. In the middle latitudes of the Southern Hemisphere (35–50∘ S) the trend is maximum from March to May. Further south toward the high latitudes (55–70∘ S) the trend exhibits a relatively strong seasonal cycle which varies from 2 % per decade in December and January to 3.8 % per decade in June and July. Article in Journal/Newspaper North Atlantic German Aerospace Center: elib - DLR electronic library Atmospheric Chemistry and Physics 22 10 6861 6878 |
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Open Polar |
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German Aerospace Center: elib - DLR electronic library |
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language |
English |
topic |
Atmosphärenprozessoren |
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Atmosphärenprozessoren Coldewey-Egbers, Melanie Loyola, Diego Lerot, Christophe Van Roozendael, Michel Global, regional and seasonal analysis of total ozone trends derived from the 1995–2020 GTO-ECV climate data record |
topic_facet |
Atmosphärenprozessoren |
description |
We present an updated perspective on near-global total ozone trends for the period 1995–2020. We use the GOME-type (Global Ozone Monitoring Experiment) Total Ozone Essential Climate Variable (GTO-ECV) satellite data record which has been extended and generated as part of the European Space Agency's Climate Change Initiative (ESA-CCI) and European Union Copernicus Climate Change Service (EU-C3S) ozone projects. The focus of our work is to examine the regional patterns and seasonal dependency of the ozone trend. In the Southern Hemisphere we found regions that indicate statistically significant positive trends increasing from 0.6 ± 0.5(2σ) % per decade in the subtropics to 1.0 ± 0.9 % per decade in the middle latitudes and 2.8 ± 2.6 % per decade in the latitude band 60–70∘ S. In the middle latitudes of the Northern Hemisphere the trend exhibits distinct regional patterns, i.e., latitudinal and longitudinal structures. Significant positive trends (∼ 1.5 ± 1.0 % per decade) over the North Atlantic region, as well as barely significant negative trends (−1.0 ± 1.0 % per decade) over eastern Europe, were found. Moreover, these trends correlate with long-term changes in tropopause pressure. Total ozone trends in the tropics are not statistically significant. Regarding the seasonal dependence of the trends we found only very small variations over the course of the year. However, we identified different behavior depending on latitude. In the latitude band 40–70∘ N the positive trend maximizes in boreal winter from December to February. In the middle latitudes of the Southern Hemisphere (35–50∘ S) the trend is maximum from March to May. Further south toward the high latitudes (55–70∘ S) the trend exhibits a relatively strong seasonal cycle which varies from 2 % per decade in December and January to 3.8 % per decade in June and July. |
format |
Article in Journal/Newspaper |
author |
Coldewey-Egbers, Melanie Loyola, Diego Lerot, Christophe Van Roozendael, Michel |
author_facet |
Coldewey-Egbers, Melanie Loyola, Diego Lerot, Christophe Van Roozendael, Michel |
author_sort |
Coldewey-Egbers, Melanie |
title |
Global, regional and seasonal analysis of total ozone trends derived from the 1995–2020 GTO-ECV climate data record |
title_short |
Global, regional and seasonal analysis of total ozone trends derived from the 1995–2020 GTO-ECV climate data record |
title_full |
Global, regional and seasonal analysis of total ozone trends derived from the 1995–2020 GTO-ECV climate data record |
title_fullStr |
Global, regional and seasonal analysis of total ozone trends derived from the 1995–2020 GTO-ECV climate data record |
title_full_unstemmed |
Global, regional and seasonal analysis of total ozone trends derived from the 1995–2020 GTO-ECV climate data record |
title_sort |
global, regional and seasonal analysis of total ozone trends derived from the 1995–2020 gto-ecv climate data record |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://elib.dlr.de/190145/ https://elib.dlr.de/190145/1/acp-22-6861-2022.pdf https://acp.copernicus.org/articles/22/6861/2022/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://elib.dlr.de/190145/1/acp-22-6861-2022.pdf Coldewey-Egbers, Melanie und Loyola, Diego und Lerot, Christophe und Van Roozendael, Michel (2022) Global, regional and seasonal analysis of total ozone trends derived from the 1995–2020 GTO-ECV climate data record. Atmospheric Chemistry and Physics (ACP), 22, Seiten 6861-6878. Copernicus Publications. doi:10.5194/acp-22-6861-2022 <https://doi.org/10.5194/acp-22-6861-2022>. ISSN 1680-7316. |
op_rights |
cc_by |
op_doi |
https://doi.org/10.5194/acp-22-6861-2022 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
22 |
container_issue |
10 |
container_start_page |
6861 |
op_container_end_page |
6878 |
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1782337688870846464 |