Total ozone trends at three northern high-latitude stations
International audience Afterthedecreaseofozone-depletingsubstances(ODSs)asaconsequenceoftheMontrealProtocol, it is still challenging to detect a recovery in the total column amount of ozone (total ozone) at northern high latitudes. To assess regional total ozone changes in the “ozone-recovery” perio...
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ftsorbonneuniv:oai:HAL:insu-04060799v1 2024-05-19T07:28:24+00:00 Total ozone trends at three northern high-latitude stations Bernet, Leonie Svendby, Tove Hansen, Georg Orsolini, Yvan Dahlback, Arne Goutail, Florence Pazmino, Andrea Petkov, Boyan Kylling, Arve Norwegian Institute for Air Research (NILU) Norwegian University of Science and Technology Trondheim (NTNU) Norwegian University of Science and Technology (NTNU) University of Oslo (UiO) STRATO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Institute of Polar Sciences Venezia-Mestre (CNR-ISP) National Research Council of Italy Università degli studi "G. d'Annunzio" Chieti-Pescara Chieti-Pescara (Ud'A) 2023-04-06 https://insu.hal.science/insu-04060799 https://insu.hal.science/insu-04060799/document https://insu.hal.science/insu-04060799/file/acp-23-4165-2023.pdf https://doi.org/10.5194/acp-23-4165-2023 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-23-4165-2023 insu-04060799 https://insu.hal.science/insu-04060799 https://insu.hal.science/insu-04060799/document https://insu.hal.science/insu-04060799/file/acp-23-4165-2023.pdf doi:10.5194/acp-23-4165-2023 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://insu.hal.science/insu-04060799 Atmospheric Chemistry and Physics, 2023, 23, pp.4165-4184. ⟨10.5194/acp-23-4165-2023⟩ [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 2023 ftsorbonneuniv https://doi.org/10.5194/acp-23-4165-2023 2024-04-25T03:47:22Z International audience Afterthedecreaseofozone-depletingsubstances(ODSs)asaconsequenceoftheMontrealProtocol, it is still challenging to detect a recovery in the total column amount of ozone (total ozone) at northern high latitudes. To assess regional total ozone changes in the “ozone-recovery” period (2000–2020) at northern high latitudes, this study investigates trends from ground-based total ozone measurements at three stations in Norway (Oslo, Andøya, and Ny-Ålesund). For this purpose, we combine measurements from Brewer spectrophotome- ters, ground-based UV filter radiometers (GUVs), and a SAOZ (Système d’Analyse par Observation Zénithale) instrument. The Brewer measurements have been extended to work under cloudy conditions using the global ir- radiance (GI) technique, which is also presented in this study. We derive trends from the combined ground-based time series with the multiple linear regression model from the Long-term Ozone Trends and Uncertainties in the Stratosphere (LOTUS) project. We evaluate various predictors in the regression model and found that tropopause pressure and lower-stratospheric temperature contribute most to ozone variability at the three stations. We report significantly positive annual trends at Andøya (0.9 ± 0.7 % per decade) and Ny-Ålesund (1.5 ± 0.1 % per decade) and no significant annual trend at Oslo (0.1 ± 0.5 % per decade) but significantly positive trends in autumn at all stations. Finally we found positive but insignificant trends of around 3 % per decade in March at all three stations, which may be an indication of Arctic springtime ozone recovery. Our results contribute to a better understanding of regional total ozone trends at northern high latitudes, which is essential to assess how Arctic ozone responds to changes in ODSs and to climate change. Article in Journal/Newspaper Andøya Arctic Climate change Ny Ålesund Ny-Ålesund HAL Sorbonne Université Atmospheric Chemistry and Physics 23 7 4165 4184 |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
spellingShingle |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] Bernet, Leonie Svendby, Tove Hansen, Georg Orsolini, Yvan Dahlback, Arne Goutail, Florence Pazmino, Andrea Petkov, Boyan Kylling, Arve Total ozone trends at three northern high-latitude stations |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience Afterthedecreaseofozone-depletingsubstances(ODSs)asaconsequenceoftheMontrealProtocol, it is still challenging to detect a recovery in the total column amount of ozone (total ozone) at northern high latitudes. To assess regional total ozone changes in the “ozone-recovery” period (2000–2020) at northern high latitudes, this study investigates trends from ground-based total ozone measurements at three stations in Norway (Oslo, Andøya, and Ny-Ålesund). For this purpose, we combine measurements from Brewer spectrophotome- ters, ground-based UV filter radiometers (GUVs), and a SAOZ (Système d’Analyse par Observation Zénithale) instrument. The Brewer measurements have been extended to work under cloudy conditions using the global ir- radiance (GI) technique, which is also presented in this study. We derive trends from the combined ground-based time series with the multiple linear regression model from the Long-term Ozone Trends and Uncertainties in the Stratosphere (LOTUS) project. We evaluate various predictors in the regression model and found that tropopause pressure and lower-stratospheric temperature contribute most to ozone variability at the three stations. We report significantly positive annual trends at Andøya (0.9 ± 0.7 % per decade) and Ny-Ålesund (1.5 ± 0.1 % per decade) and no significant annual trend at Oslo (0.1 ± 0.5 % per decade) but significantly positive trends in autumn at all stations. Finally we found positive but insignificant trends of around 3 % per decade in March at all three stations, which may be an indication of Arctic springtime ozone recovery. Our results contribute to a better understanding of regional total ozone trends at northern high latitudes, which is essential to assess how Arctic ozone responds to changes in ODSs and to climate change. |
author2 |
Norwegian Institute for Air Research (NILU) Norwegian University of Science and Technology Trondheim (NTNU) Norwegian University of Science and Technology (NTNU) University of Oslo (UiO) STRATO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Institute of Polar Sciences Venezia-Mestre (CNR-ISP) National Research Council of Italy Università degli studi "G. d'Annunzio" Chieti-Pescara Chieti-Pescara (Ud'A) |
format |
Article in Journal/Newspaper |
author |
Bernet, Leonie Svendby, Tove Hansen, Georg Orsolini, Yvan Dahlback, Arne Goutail, Florence Pazmino, Andrea Petkov, Boyan Kylling, Arve |
author_facet |
Bernet, Leonie Svendby, Tove Hansen, Georg Orsolini, Yvan Dahlback, Arne Goutail, Florence Pazmino, Andrea Petkov, Boyan Kylling, Arve |
author_sort |
Bernet, Leonie |
title |
Total ozone trends at three northern high-latitude stations |
title_short |
Total ozone trends at three northern high-latitude stations |
title_full |
Total ozone trends at three northern high-latitude stations |
title_fullStr |
Total ozone trends at three northern high-latitude stations |
title_full_unstemmed |
Total ozone trends at three northern high-latitude stations |
title_sort |
total ozone trends at three northern high-latitude stations |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://insu.hal.science/insu-04060799 https://insu.hal.science/insu-04060799/document https://insu.hal.science/insu-04060799/file/acp-23-4165-2023.pdf https://doi.org/10.5194/acp-23-4165-2023 |
genre |
Andøya Arctic Climate change Ny Ålesund Ny-Ålesund |
genre_facet |
Andøya Arctic Climate change Ny Ålesund Ny-Ålesund |
op_source |
ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://insu.hal.science/insu-04060799 Atmospheric Chemistry and Physics, 2023, 23, pp.4165-4184. ⟨10.5194/acp-23-4165-2023⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-23-4165-2023 insu-04060799 https://insu.hal.science/insu-04060799 https://insu.hal.science/insu-04060799/document https://insu.hal.science/insu-04060799/file/acp-23-4165-2023.pdf doi:10.5194/acp-23-4165-2023 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/acp-23-4165-2023 |
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Atmospheric Chemistry and Physics |
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23 |
container_issue |
7 |
container_start_page |
4165 |
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4184 |
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