Record-breaking ozone loss in the Arctic winter 2010/2011: comparison with 1996/1997
We present a detailed discussion of the chemical and dynamical processes in the Arctic winters 1996/1997 and 2010/2011 with high resolution chemical transport model (CTM) simulations and space-based observations. In the Arctic winter 2010/2011, the lower stratospheric minimum temperatures were below...
Published in: | Atmospheric Chemistry and Physics |
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Online Access: | https://hal.science/hal-00676807 https://hal.science/hal-00676807/document https://hal.science/hal-00676807/file/acp-12-7073-2012.pdf https://doi.org/10.5194/acp-12-7073-2012 |
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ftsorbonneuniv:oai:HAL:hal-00676807v1 2024-05-19T07:28:47+00:00 Record-breaking ozone loss in the Arctic winter 2010/2011: comparison with 1996/1997 Kuttippurath, Jayanarayanan Godin-Beekmann, Sophie Lefèvre, Franck Nikulin, G. Santee, M. L. Froidevaux, L. 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) Swedish Institute of Space Physics Kiruna (IRF) Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) 2012 https://hal.science/hal-00676807 https://hal.science/hal-00676807/document https://hal.science/hal-00676807/file/acp-12-7073-2012.pdf https://doi.org/10.5194/acp-12-7073-2012 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-12-7073-2012 hal-00676807 https://hal.science/hal-00676807 https://hal.science/hal-00676807/document https://hal.science/hal-00676807/file/acp-12-7073-2012.pdf doi:10.5194/acp-12-7073-2012 info:eu-repo/semantics/OpenAccess ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-00676807 Atmospheric Chemistry and Physics, 2012, 12 (15), pp.7073-7085. ⟨10.5194/acp-12-7073-2012⟩ [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 2012 ftsorbonneuniv https://doi.org/10.5194/acp-12-7073-2012 2024-04-25T04:16:52Z We present a detailed discussion of the chemical and dynamical processes in the Arctic winters 1996/1997 and 2010/2011 with high resolution chemical transport model (CTM) simulations and space-based observations. In the Arctic winter 2010/2011, the lower stratospheric minimum temperatures were below 195 K for a record period, from December to mid-April, and a strong and stable vortex was present during that period. Analyses with the Mimosa-Chim CTM simulations show that the chemical ozone loss started by early January and progressed slowly to 1 ppmv (parts per million by volume) by late February. The loss intensified by early March and reached a record maximum of ~2.4 ppmv in the late March-early April period over a broad altitude range of 450-550 K. This coincides with elevated ozone loss rates of 2-4 ppbv sh−1 (parts per billion by volume/sunlit hour) and a contribution of about 40% from the ClO-ClO cycle and about 35-40% from the ClO-BrO cycle in late February and March, and about 30-50% from the HOx cycle in April. We also estimate a loss of around 0.7-1.2 ppmv contributed (75%) by the NOx cycle at 550-700 K. The ozone loss estimated in the partial column range of 350-550 K also exhibits a record value of ~148 DU (Dobson Unit). This is the largest ozone loss ever estimated in the Arctic and is consistent with the remarkable chlorine activation and strong denitrification (40-50%) during the winter, as the modeled ClO shows ~1.8 ppbv in early January and ~1 ppbv in March at 450-550 K. These model results are in excellent agreement with those found from the Aura Microwave Limb Sounder observations. Our analyses also show that the ozone loss in 2010/2011 is close to that found in some Antarctic winters, for the first time in the observed history. Though the winter 1996/1997 was also very cold in March-April, the temperatures were higher in December-February, and, therefore, chlorine activation was moderate and ozone loss was average with about 1.2 ppmv at 475-550 K or 42 DU at 350-550 K, as diagnosed from the ... Article in Journal/Newspaper Antarc* Antarctic Arctic HAL Sorbonne Université Atmospheric Chemistry and Physics 12 15 7073 7085 |
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] Kuttippurath, Jayanarayanan Godin-Beekmann, Sophie Lefèvre, Franck Nikulin, G. Santee, M. L. Froidevaux, L. Record-breaking ozone loss in the Arctic winter 2010/2011: comparison with 1996/1997 |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
We present a detailed discussion of the chemical and dynamical processes in the Arctic winters 1996/1997 and 2010/2011 with high resolution chemical transport model (CTM) simulations and space-based observations. In the Arctic winter 2010/2011, the lower stratospheric minimum temperatures were below 195 K for a record period, from December to mid-April, and a strong and stable vortex was present during that period. Analyses with the Mimosa-Chim CTM simulations show that the chemical ozone loss started by early January and progressed slowly to 1 ppmv (parts per million by volume) by late February. The loss intensified by early March and reached a record maximum of ~2.4 ppmv in the late March-early April period over a broad altitude range of 450-550 K. This coincides with elevated ozone loss rates of 2-4 ppbv sh−1 (parts per billion by volume/sunlit hour) and a contribution of about 40% from the ClO-ClO cycle and about 35-40% from the ClO-BrO cycle in late February and March, and about 30-50% from the HOx cycle in April. We also estimate a loss of around 0.7-1.2 ppmv contributed (75%) by the NOx cycle at 550-700 K. The ozone loss estimated in the partial column range of 350-550 K also exhibits a record value of ~148 DU (Dobson Unit). This is the largest ozone loss ever estimated in the Arctic and is consistent with the remarkable chlorine activation and strong denitrification (40-50%) during the winter, as the modeled ClO shows ~1.8 ppbv in early January and ~1 ppbv in March at 450-550 K. These model results are in excellent agreement with those found from the Aura Microwave Limb Sounder observations. Our analyses also show that the ozone loss in 2010/2011 is close to that found in some Antarctic winters, for the first time in the observed history. Though the winter 1996/1997 was also very cold in March-April, the temperatures were higher in December-February, and, therefore, chlorine activation was moderate and ozone loss was average with about 1.2 ppmv at 475-550 K or 42 DU at 350-550 K, as diagnosed from the ... |
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) Swedish Institute of Space Physics Kiruna (IRF) Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) |
format |
Article in Journal/Newspaper |
author |
Kuttippurath, Jayanarayanan Godin-Beekmann, Sophie Lefèvre, Franck Nikulin, G. Santee, M. L. Froidevaux, L. |
author_facet |
Kuttippurath, Jayanarayanan Godin-Beekmann, Sophie Lefèvre, Franck Nikulin, G. Santee, M. L. Froidevaux, L. |
author_sort |
Kuttippurath, Jayanarayanan |
title |
Record-breaking ozone loss in the Arctic winter 2010/2011: comparison with 1996/1997 |
title_short |
Record-breaking ozone loss in the Arctic winter 2010/2011: comparison with 1996/1997 |
title_full |
Record-breaking ozone loss in the Arctic winter 2010/2011: comparison with 1996/1997 |
title_fullStr |
Record-breaking ozone loss in the Arctic winter 2010/2011: comparison with 1996/1997 |
title_full_unstemmed |
Record-breaking ozone loss in the Arctic winter 2010/2011: comparison with 1996/1997 |
title_sort |
record-breaking ozone loss in the arctic winter 2010/2011: comparison with 1996/1997 |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-00676807 https://hal.science/hal-00676807/document https://hal.science/hal-00676807/file/acp-12-7073-2012.pdf https://doi.org/10.5194/acp-12-7073-2012 |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_source |
ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-00676807 Atmospheric Chemistry and Physics, 2012, 12 (15), pp.7073-7085. ⟨10.5194/acp-12-7073-2012⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-12-7073-2012 hal-00676807 https://hal.science/hal-00676807 https://hal.science/hal-00676807/document https://hal.science/hal-00676807/file/acp-12-7073-2012.pdf doi:10.5194/acp-12-7073-2012 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/acp-12-7073-2012 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
12 |
container_issue |
15 |
container_start_page |
7073 |
op_container_end_page |
7085 |
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1799475856267018240 |