Record total ozone depletion in the Arctic vortex in 2011
International audience The amount of ozone depletion in the Arctic has been monitored every year since 1994 by comparison between total ozone measurements of the SAOZ / NDACC UV-Vis spectrometer stations and 3-D chemical transport model simulations in which ozone is considered as a passive tracer. T...
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ftunivnantes:oai:HAL:hal-00821970v1 2023-05-15T13:54:35+02:00 Record total ozone depletion in the Arctic vortex in 2011 Goutail, Florence Pommereau, Jean-Pierre Lefèvre, Franck Pazmino, Andrea Kuttippurath, Jayanarayanan Chipperfield, M. Feng, W. van Roozendael, M. Eriksen, P. Stebel, K. Dorokhov, V. Kyro, E. Strong, K. 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) School of Earth and Environment Leeds (SEE) University of Leeds Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique (BIRA-IASB) Danish Meteorological Institute (DMI) Norwegian Institute for Air Research (NILU) Central Aerological Observatory (CAO) Russian Federal Service for Hydrometeorology and Environmental Monitoring (Roshydromet) Finnish Meteorological Institute (FMI) Department of Physics Toronto University of Toronto San Francisco, United States 2011-12-05 https://hal.science/hal-00821970 en eng HAL CCSD hal-00821970 https://hal.science/hal-00821970 AGU Fall Meeting 2011 https://hal.science/hal-00821970 AGU Fall Meeting 2011, Dec 2011, San Francisco, United States [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/conferenceObject Conference papers 2011 ftunivnantes 2023-02-15T00:15:32Z International audience The amount of ozone depletion in the Arctic has been monitored every year since 1994 by comparison between total ozone measurements of the SAOZ / NDACC UV-Vis spectrometer stations and 3-D chemical transport model simulations in which ozone is considered as a passive tracer. The destruction is found to be highly dependent on the stratospheric temperature history of the winter, varying between 0-10% in relatively warm and short vortex duration years to 25-30% in colder and longer ones. Compared to these 17 previous years, the winter 2010/2011 displays an unprecedented depletion of 39% in the polar vortex. The destruction started in early January and remained limited to 10% until mid-February. However, the depletion accelerated afterwards and a daily loss rate of about 0.8 DU/day was estimated until late March. Analysis with ozonesonde measurements from Sodankyla launched on March 30, also showed a reduction of about 80% of ozone between 18 and 21 km consistent with the total column loss estimations. This unusual depletion is attributed to an extremely cold stratosphere during the late winter, colder than any year since 1994 in March, due to the limited amplitude of planetary waves in 2010/2011. It is shown to even exceed that of 1997 when the vortex remained until early April. Although extreme and reaching in March a rate similar to that of September over Antarctica, the depletion is still smaller than that derived by the same method in Antarctica for 23 years, where, with the exception of 2002, it systematically reaches 50-52%. The event offers a challenging opportunity for testing the ability of 3-D chemical transport models to capture the depletion under these extreme Arctic conditions. In this study, the loss is shown to be underestimated by REPROBUS and overestimated by SLIMCAT. Possible reasons for this will be discussed. Conference Object Antarc* Antarctica Arctic Université de Nantes: HAL-UNIV-NANTES Arctic |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
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] Goutail, Florence Pommereau, Jean-Pierre Lefèvre, Franck Pazmino, Andrea Kuttippurath, Jayanarayanan Chipperfield, M. Feng, W. van Roozendael, M. Eriksen, P. Stebel, K. Dorokhov, V. Kyro, E. Strong, K. Record total ozone depletion in the Arctic vortex in 2011 |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience The amount of ozone depletion in the Arctic has been monitored every year since 1994 by comparison between total ozone measurements of the SAOZ / NDACC UV-Vis spectrometer stations and 3-D chemical transport model simulations in which ozone is considered as a passive tracer. The destruction is found to be highly dependent on the stratospheric temperature history of the winter, varying between 0-10% in relatively warm and short vortex duration years to 25-30% in colder and longer ones. Compared to these 17 previous years, the winter 2010/2011 displays an unprecedented depletion of 39% in the polar vortex. The destruction started in early January and remained limited to 10% until mid-February. However, the depletion accelerated afterwards and a daily loss rate of about 0.8 DU/day was estimated until late March. Analysis with ozonesonde measurements from Sodankyla launched on March 30, also showed a reduction of about 80% of ozone between 18 and 21 km consistent with the total column loss estimations. This unusual depletion is attributed to an extremely cold stratosphere during the late winter, colder than any year since 1994 in March, due to the limited amplitude of planetary waves in 2010/2011. It is shown to even exceed that of 1997 when the vortex remained until early April. Although extreme and reaching in March a rate similar to that of September over Antarctica, the depletion is still smaller than that derived by the same method in Antarctica for 23 years, where, with the exception of 2002, it systematically reaches 50-52%. The event offers a challenging opportunity for testing the ability of 3-D chemical transport models to capture the depletion under these extreme Arctic conditions. In this study, the loss is shown to be underestimated by REPROBUS and overestimated by SLIMCAT. Possible reasons for this will be discussed. |
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) School of Earth and Environment Leeds (SEE) University of Leeds Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique (BIRA-IASB) Danish Meteorological Institute (DMI) Norwegian Institute for Air Research (NILU) Central Aerological Observatory (CAO) Russian Federal Service for Hydrometeorology and Environmental Monitoring (Roshydromet) Finnish Meteorological Institute (FMI) Department of Physics Toronto University of Toronto |
format |
Conference Object |
author |
Goutail, Florence Pommereau, Jean-Pierre Lefèvre, Franck Pazmino, Andrea Kuttippurath, Jayanarayanan Chipperfield, M. Feng, W. van Roozendael, M. Eriksen, P. Stebel, K. Dorokhov, V. Kyro, E. Strong, K. |
author_facet |
Goutail, Florence Pommereau, Jean-Pierre Lefèvre, Franck Pazmino, Andrea Kuttippurath, Jayanarayanan Chipperfield, M. Feng, W. van Roozendael, M. Eriksen, P. Stebel, K. Dorokhov, V. Kyro, E. Strong, K. |
author_sort |
Goutail, Florence |
title |
Record total ozone depletion in the Arctic vortex in 2011 |
title_short |
Record total ozone depletion in the Arctic vortex in 2011 |
title_full |
Record total ozone depletion in the Arctic vortex in 2011 |
title_fullStr |
Record total ozone depletion in the Arctic vortex in 2011 |
title_full_unstemmed |
Record total ozone depletion in the Arctic vortex in 2011 |
title_sort |
record total ozone depletion in the arctic vortex in 2011 |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal.science/hal-00821970 |
op_coverage |
San Francisco, United States |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Antarc* Antarctica Arctic |
genre_facet |
Antarc* Antarctica Arctic |
op_source |
AGU Fall Meeting 2011 https://hal.science/hal-00821970 AGU Fall Meeting 2011, Dec 2011, San Francisco, United States |
op_relation |
hal-00821970 https://hal.science/hal-00821970 |
_version_ |
1766260576170803200 |