Antarctic ozone loss in 1979-2010: first sign of ozone recovery
A long-term ozone loss time series is necessary to understand the evolution of ozone in Antarctica. Therefore, we construct the time series using ground-based, satellite and bias-corrected multi-sensor reanalysis (MSR) data sets for the period 1989-2010. The trends in ozone over 1979-2010 are also e...
Published in: | Atmospheric Chemistry and Physics |
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ftuniversailles:oai:HAL:hal-00691957v1 2024-05-19T07:32:10+00:00 Antarctic ozone loss in 1979-2010: first sign of ozone recovery Kuttippurath, Jayanarayanan Lefèvre, Franck Pommereau, Jean-Pierre Roscoe, H. K. Goutail, Florence Pazmino, Andrea Shanklin, J. D. STRATO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) British Antarctic Survey (BAS) Natural Environment Research Council (NERC) 2013 https://hal.science/hal-00691957 https://hal.science/hal-00691957/document https://hal.science/hal-00691957/file/acp-13-1625-2013.pdf https://doi.org/10.5194/acp-13-1625-2013 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-13-1625-2013 hal-00691957 https://hal.science/hal-00691957 https://hal.science/hal-00691957/document https://hal.science/hal-00691957/file/acp-13-1625-2013.pdf doi:10.5194/acp-13-1625-2013 info:eu-repo/semantics/OpenAccess ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-00691957 Atmospheric Chemistry and Physics, 2013, 13 (3), pp.1625-1635. ⟨10.5194/acp-13-1625-2013⟩ [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 2013 ftuniversailles https://doi.org/10.5194/acp-13-1625-2013 2024-04-25T00:37:04Z A long-term ozone loss time series is necessary to understand the evolution of ozone in Antarctica. Therefore, we construct the time series using ground-based, satellite and bias-corrected multi-sensor reanalysis (MSR) data sets for the period 1989-2010. The trends in ozone over 1979-2010 are also estimated to further elucidate its evolution in the wake of decreasing halogen levels in the stratosphere. Our analysis with ground-based observations shows that the average ozone loss in the Antarctic is about −33 to −50% (−90 to −155 DU (Dobson Unit)) in 1989-1992, and then stayed at around −48% (−160 DU). The ozone loss in the warmer winters (e.g. 2002 and 2004) is lower (−37 to −46%), and in the very cold winters (e.g. 2003 and 2006) it is higher (−52 to −55%). These loss estimates are in good agreement with those estimated from satellite observations, where the differences are less than ±3%. The ozone trends based on the equivalent effective Antarctic stratospheric chlorine (EEASC) and piecewise linear trend (PWLT) functions for the vortex averaged ground-based, Total Ozone Mapping Spectrometer/Ozone Monitoring Instrument (TOMS/OMI), and MSR data averaged over September-November exhibit about −4.6 DU yr−1 over 1979-1999, corroborating the role of halogens in the ozone decrease during the period. The ozone trends computed for the 2000-2010 period are about +1 DU yr−1 for EEASC and +2.6 DU yr−1 for the PWLT functions. The larger positive PWLT trends for the 2000-2010 period indicate the influence of dynamics and other basis functions on the increase of ozone. The trends in both periods are significant at 95% confidence intervals for all analyses. Therefore, our study suggests that Antarctic ozone shows a significant positive trend toward its recovery, and hence, leaves a clear signature of the successful implementation of the Montreal Protocol. Article in Journal/Newspaper Antarc* Antarctic Antarctica Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ Atmospheric Chemistry and Physics 13 3 1625 1635 |
institution |
Open Polar |
collection |
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
op_collection_id |
ftuniversailles |
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] Kuttippurath, Jayanarayanan Lefèvre, Franck Pommereau, Jean-Pierre Roscoe, H. K. Goutail, Florence Pazmino, Andrea Shanklin, J. D. Antarctic ozone loss in 1979-2010: first sign of ozone recovery |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
A long-term ozone loss time series is necessary to understand the evolution of ozone in Antarctica. Therefore, we construct the time series using ground-based, satellite and bias-corrected multi-sensor reanalysis (MSR) data sets for the period 1989-2010. The trends in ozone over 1979-2010 are also estimated to further elucidate its evolution in the wake of decreasing halogen levels in the stratosphere. Our analysis with ground-based observations shows that the average ozone loss in the Antarctic is about −33 to −50% (−90 to −155 DU (Dobson Unit)) in 1989-1992, and then stayed at around −48% (−160 DU). The ozone loss in the warmer winters (e.g. 2002 and 2004) is lower (−37 to −46%), and in the very cold winters (e.g. 2003 and 2006) it is higher (−52 to −55%). These loss estimates are in good agreement with those estimated from satellite observations, where the differences are less than ±3%. The ozone trends based on the equivalent effective Antarctic stratospheric chlorine (EEASC) and piecewise linear trend (PWLT) functions for the vortex averaged ground-based, Total Ozone Mapping Spectrometer/Ozone Monitoring Instrument (TOMS/OMI), and MSR data averaged over September-November exhibit about −4.6 DU yr−1 over 1979-1999, corroborating the role of halogens in the ozone decrease during the period. The ozone trends computed for the 2000-2010 period are about +1 DU yr−1 for EEASC and +2.6 DU yr−1 for the PWLT functions. The larger positive PWLT trends for the 2000-2010 period indicate the influence of dynamics and other basis functions on the increase of ozone. The trends in both periods are significant at 95% confidence intervals for all analyses. Therefore, our study suggests that Antarctic ozone shows a significant positive trend toward its recovery, and hence, leaves a clear signature of the successful implementation of the Montreal Protocol. |
author2 |
STRATO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) British Antarctic Survey (BAS) Natural Environment Research Council (NERC) |
format |
Article in Journal/Newspaper |
author |
Kuttippurath, Jayanarayanan Lefèvre, Franck Pommereau, Jean-Pierre Roscoe, H. K. Goutail, Florence Pazmino, Andrea Shanklin, J. D. |
author_facet |
Kuttippurath, Jayanarayanan Lefèvre, Franck Pommereau, Jean-Pierre Roscoe, H. K. Goutail, Florence Pazmino, Andrea Shanklin, J. D. |
author_sort |
Kuttippurath, Jayanarayanan |
title |
Antarctic ozone loss in 1979-2010: first sign of ozone recovery |
title_short |
Antarctic ozone loss in 1979-2010: first sign of ozone recovery |
title_full |
Antarctic ozone loss in 1979-2010: first sign of ozone recovery |
title_fullStr |
Antarctic ozone loss in 1979-2010: first sign of ozone recovery |
title_full_unstemmed |
Antarctic ozone loss in 1979-2010: first sign of ozone recovery |
title_sort |
antarctic ozone loss in 1979-2010: first sign of ozone recovery |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-00691957 https://hal.science/hal-00691957/document https://hal.science/hal-00691957/file/acp-13-1625-2013.pdf https://doi.org/10.5194/acp-13-1625-2013 |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-00691957 Atmospheric Chemistry and Physics, 2013, 13 (3), pp.1625-1635. ⟨10.5194/acp-13-1625-2013⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-13-1625-2013 hal-00691957 https://hal.science/hal-00691957 https://hal.science/hal-00691957/document https://hal.science/hal-00691957/file/acp-13-1625-2013.pdf doi:10.5194/acp-13-1625-2013 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/acp-13-1625-2013 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
13 |
container_issue |
3 |
container_start_page |
1625 |
op_container_end_page |
1635 |
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1799470129938956288 |