The unusual persistence of an ozone hole over a southern mid-latitude station during the Antarctic spring 2009: a multi-instrument study
International audience Record-low ozone column densities (with a minimum of 212 DU) persisted over three weeks at the Río Gallegos NDACC (Network for the Detection of Atmospheric Composition Change) station (51.5° S, 69.3° W) in November 2009. Total ozone remained two standard deviations below the c...
Published in: | Annales Geophysicae |
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Main Authors: | , , , , , , , , , , , |
Other Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2012
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Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-00738310 https://hal.archives-ouvertes.fr/hal-00738310/document https://hal.archives-ouvertes.fr/hal-00738310/file/angeo-30-1435-2012.pdf https://doi.org/10.5194/angeo-30-1435-2012 |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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English |
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[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] Wolfram, E. A. Salvador, J. Orte, F. D'Elia, R. Godin-Beekmann, Sophie Kuttippurath, Jayanarayanan Pazmino, Andrea Goutail, Florence Casiccia, C. Zamorano, F. Paes Leme, N. Quel, E. J. The unusual persistence of an ozone hole over a southern mid-latitude station during the Antarctic spring 2009: a multi-instrument study |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience Record-low ozone column densities (with a minimum of 212 DU) persisted over three weeks at the Río Gallegos NDACC (Network for the Detection of Atmospheric Composition Change) station (51.5° S, 69.3° W) in November 2009. Total ozone remained two standard deviations below the climatological mean for five consecutive days during this period. The statistical analysis of 30 years of satellite data from the Multi Sensor Reanalysis (MSR) database for Río Gallegos revealed that such a long-lasting low-ozone episode is a rare occurrence. The event is examined using height-resolved ozone lidar measurements at Río Gallegos, and observations from satellite and ground-based instruments. The computed relative difference between the measured total ozone and the climatological monthly mean shows reductions varying between 10 and 30% with an average decrease of 25%. The mean absolute difference of total ozone column with respect to climatological monthly mean ozone column is around 75 DU. Extreme values of the UV index (UVI) were measured at the ground for this period, with the daily maximum UVI of around 13 on 15 and 28 November. The high-resolution MIMOSA-CHIM (Modélisation Isentrope du transport Méso-échelle de l'Ozone Stratosphérique par Advection) model was used to interpret the ozone depletion event. An ozone decrease of about 2 ppmv was observed in mid-November at the 550 K isentropic level (~22 km). The position of Río Gallegos relative to the polar vortex was classified using equivalent latitude maps. During the second week of November, the vortex was over the station at all isentropic levels, but after 20 November and until the end of the month, only the 10 lower levels in the stratosphere were affected by vortex overpasses with ozone poor air masses. A rapid recovery of the ozone column density was observed later, due to an ozone rich filament moving over Río Gallegos between 18 and 24 km in the first two weeks of December 2009. |
author2 |
Centro de Investigaciones en Láseres y Aplicaciones Buenos Aires (CEILAP) Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Instituto de Investigaciones Científicas y Técnicas para la Defensa (CITEDEF) 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) Laboratorio de Ciencias Atmosféricas Universidad de Magallanes (UMAG) Instituto Nacional de Pesquisas Espaciais (INPE) Ministério da Ciência, Tecnologia e Inovação |
format |
Article in Journal/Newspaper |
author |
Wolfram, E. A. Salvador, J. Orte, F. D'Elia, R. Godin-Beekmann, Sophie Kuttippurath, Jayanarayanan Pazmino, Andrea Goutail, Florence Casiccia, C. Zamorano, F. Paes Leme, N. Quel, E. J. |
author_facet |
Wolfram, E. A. Salvador, J. Orte, F. D'Elia, R. Godin-Beekmann, Sophie Kuttippurath, Jayanarayanan Pazmino, Andrea Goutail, Florence Casiccia, C. Zamorano, F. Paes Leme, N. Quel, E. J. |
author_sort |
Wolfram, E. A. |
title |
The unusual persistence of an ozone hole over a southern mid-latitude station during the Antarctic spring 2009: a multi-instrument study |
title_short |
The unusual persistence of an ozone hole over a southern mid-latitude station during the Antarctic spring 2009: a multi-instrument study |
title_full |
The unusual persistence of an ozone hole over a southern mid-latitude station during the Antarctic spring 2009: a multi-instrument study |
title_fullStr |
The unusual persistence of an ozone hole over a southern mid-latitude station during the Antarctic spring 2009: a multi-instrument study |
title_full_unstemmed |
The unusual persistence of an ozone hole over a southern mid-latitude station during the Antarctic spring 2009: a multi-instrument study |
title_sort |
unusual persistence of an ozone hole over a southern mid-latitude station during the antarctic spring 2009: a multi-instrument study |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.archives-ouvertes.fr/hal-00738310 https://hal.archives-ouvertes.fr/hal-00738310/document https://hal.archives-ouvertes.fr/hal-00738310/file/angeo-30-1435-2012.pdf https://doi.org/10.5194/angeo-30-1435-2012 |
long_lat |
ENVELOPE(-67.150,-67.150,-68.133,-68.133) |
geographic |
Antarctic The Antarctic Gallegos |
geographic_facet |
Antarctic The Antarctic Gallegos |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.archives-ouvertes.fr/hal-00738310 Annales Geophysicae, European Geosciences Union, 2012, 30 (10), pp.1435-1449. ⟨10.5194/angeo-30-1435-2012⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/angeo-30-1435-2012 hal-00738310 https://hal.archives-ouvertes.fr/hal-00738310 https://hal.archives-ouvertes.fr/hal-00738310/document https://hal.archives-ouvertes.fr/hal-00738310/file/angeo-30-1435-2012.pdf doi:10.5194/angeo-30-1435-2012 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/angeo-30-1435-2012 |
container_title |
Annales Geophysicae |
container_volume |
30 |
container_issue |
10 |
container_start_page |
1435 |
op_container_end_page |
1449 |
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1766267042649866240 |
spelling |
ftccsdartic:oai:HAL:hal-00738310v1 2023-05-15T13:58:42+02:00 The unusual persistence of an ozone hole over a southern mid-latitude station during the Antarctic spring 2009: a multi-instrument study Wolfram, E. A. Salvador, J. Orte, F. D'Elia, R. Godin-Beekmann, Sophie Kuttippurath, Jayanarayanan Pazmino, Andrea Goutail, Florence Casiccia, C. Zamorano, F. Paes Leme, N. Quel, E. J. Centro de Investigaciones en Láseres y Aplicaciones Buenos Aires (CEILAP) Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Instituto de Investigaciones Científicas y Técnicas para la Defensa (CITEDEF) 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) Laboratorio de Ciencias Atmosféricas Universidad de Magallanes (UMAG) Instituto Nacional de Pesquisas Espaciais (INPE) Ministério da Ciência, Tecnologia e Inovação 2012 https://hal.archives-ouvertes.fr/hal-00738310 https://hal.archives-ouvertes.fr/hal-00738310/document https://hal.archives-ouvertes.fr/hal-00738310/file/angeo-30-1435-2012.pdf https://doi.org/10.5194/angeo-30-1435-2012 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/angeo-30-1435-2012 hal-00738310 https://hal.archives-ouvertes.fr/hal-00738310 https://hal.archives-ouvertes.fr/hal-00738310/document https://hal.archives-ouvertes.fr/hal-00738310/file/angeo-30-1435-2012.pdf doi:10.5194/angeo-30-1435-2012 info:eu-repo/semantics/OpenAccess ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.archives-ouvertes.fr/hal-00738310 Annales Geophysicae, European Geosciences Union, 2012, 30 (10), pp.1435-1449. ⟨10.5194/angeo-30-1435-2012⟩ [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 2012 ftccsdartic https://doi.org/10.5194/angeo-30-1435-2012 2021-11-21T02:58:06Z International audience Record-low ozone column densities (with a minimum of 212 DU) persisted over three weeks at the Río Gallegos NDACC (Network for the Detection of Atmospheric Composition Change) station (51.5° S, 69.3° W) in November 2009. Total ozone remained two standard deviations below the climatological mean for five consecutive days during this period. The statistical analysis of 30 years of satellite data from the Multi Sensor Reanalysis (MSR) database for Río Gallegos revealed that such a long-lasting low-ozone episode is a rare occurrence. The event is examined using height-resolved ozone lidar measurements at Río Gallegos, and observations from satellite and ground-based instruments. The computed relative difference between the measured total ozone and the climatological monthly mean shows reductions varying between 10 and 30% with an average decrease of 25%. The mean absolute difference of total ozone column with respect to climatological monthly mean ozone column is around 75 DU. Extreme values of the UV index (UVI) were measured at the ground for this period, with the daily maximum UVI of around 13 on 15 and 28 November. The high-resolution MIMOSA-CHIM (Modélisation Isentrope du transport Méso-échelle de l'Ozone Stratosphérique par Advection) model was used to interpret the ozone depletion event. An ozone decrease of about 2 ppmv was observed in mid-November at the 550 K isentropic level (~22 km). The position of Río Gallegos relative to the polar vortex was classified using equivalent latitude maps. During the second week of November, the vortex was over the station at all isentropic levels, but after 20 November and until the end of the month, only the 10 lower levels in the stratosphere were affected by vortex overpasses with ozone poor air masses. A rapid recovery of the ozone column density was observed later, due to an ozone rich filament moving over Río Gallegos between 18 and 24 km in the first two weeks of December 2009. Article in Journal/Newspaper Antarc* Antarctic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic The Antarctic Gallegos ENVELOPE(-67.150,-67.150,-68.133,-68.133) Annales Geophysicae 30 10 1435 1449 |