Total ozone loss during the 2019/20 Arctic winter and comparison to previous years
International audience The amplitude of ozone depletion in the Arctic is monitored every year since 1990 by comparison between total ozone measurements of SAOZ / NDACC UV-Vis spectrometers deployed in the Arctic and 3-D chemical transport model simulations in which ozone is considered as a passive t...
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ftuniparissaclay:oai:HAL:insu-03026807v1 2023-11-12T04:11:50+01:00 Total ozone loss during the 2019/20 Arctic winter and comparison to previous years Goutail, Florence Pommereau, Jean-Pierre Pazmino, Andrea Lefèvre, Franck Clerbaux, Cathy Boynard, Anne Hadji-Lazaro, Juliette Chipperfield, Martyn Feng, Wuhu Roozendael, Michel Van Jepsen, Nis Hansen, Georg Kivi, Rigel Bognar, Kristof Strong, Kimberly Walker, Kaley 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) TROPO - LATMOS 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) Finnish Meteorological Institute (FMI) Department of Physics Toronto University of Toronto Online, Germany 2020-05 https://insu.hal.science/insu-03026807 https://doi.org/10.5194/egusphere-egu2020-3571 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu2020-3571 insu-03026807 https://insu.hal.science/insu-03026807 doi:10.5194/egusphere-egu2020-3571 EGU General Assembly 2020 https://insu.hal.science/insu-03026807 EGU General Assembly 2020, May 2020, Online, Germany. ⟨10.5194/egusphere-egu2020-3571⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/conferenceObject Conference papers 2020 ftuniparissaclay https://doi.org/10.5194/egusphere-egu2020-3571 2023-10-14T21:42:34Z International audience The amplitude of ozone depletion in the Arctic is monitored every year since 1990 by comparison between total ozone measurements of SAOZ / NDACC UV-Vis spectrometers deployed in the Arctic and 3-D chemical transport model simulations in which ozone is considered as a passive tracer.When SAOZ measurements are missing for various reasons, lack of sunlight, station closed or instrument failure, they are replaced since 2017 by IASI/Metop overpasses above the station. These measurements in the thermal Infrared are available all year around, at all latitudes even in the polar night. IASI data have been compared to SAOZ and to 3-D CTM REPROBUS and the agreement is better than 3% at the latitude of the polar circle.The method allows determining the evolution of the daily rate of the ozone destruction and the amplitude of the cumulative loss at the end of the winter. The amplitude of the destruction varies between 0-10% in relatively warm and short vortex duration years up to 25-39% in colder and longer ones.Since a strong and large vortex centred at the North Pole, PSCs and activated chlorine are still present at all levels in the lower stratosphere on January 9, 2020, there is a good probability that a significant O3 loss may happen in 2020. But since, as shown by the unprecedented depletion of 39% in 2010/11, the loss depends on the vortex duration, strength and possible re-noxification, it is difficult to predict in advance the amplitude of the cumulative loss at the end of the winter.Shown in this presentation will be the evolution of ozone loss and re-noxification in the Arctic vortex during the winter 2019/20 compared to previous winters and REPROBUS and SLIMCAT CTM simulations. Conference Object Arctic North Pole polar night Archives ouvertes de Paris-Saclay Arctic North Pole |
institution |
Open Polar |
collection |
Archives ouvertes de Paris-Saclay |
op_collection_id |
ftuniparissaclay |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Goutail, Florence Pommereau, Jean-Pierre Pazmino, Andrea Lefèvre, Franck Clerbaux, Cathy Boynard, Anne Hadji-Lazaro, Juliette Chipperfield, Martyn Feng, Wuhu Roozendael, Michel Van Jepsen, Nis Hansen, Georg Kivi, Rigel Bognar, Kristof Strong, Kimberly Walker, Kaley Total ozone loss during the 2019/20 Arctic winter and comparison to previous years |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience The amplitude of ozone depletion in the Arctic is monitored every year since 1990 by comparison between total ozone measurements of SAOZ / NDACC UV-Vis spectrometers deployed in the Arctic and 3-D chemical transport model simulations in which ozone is considered as a passive tracer.When SAOZ measurements are missing for various reasons, lack of sunlight, station closed or instrument failure, they are replaced since 2017 by IASI/Metop overpasses above the station. These measurements in the thermal Infrared are available all year around, at all latitudes even in the polar night. IASI data have been compared to SAOZ and to 3-D CTM REPROBUS and the agreement is better than 3% at the latitude of the polar circle.The method allows determining the evolution of the daily rate of the ozone destruction and the amplitude of the cumulative loss at the end of the winter. The amplitude of the destruction varies between 0-10% in relatively warm and short vortex duration years up to 25-39% in colder and longer ones.Since a strong and large vortex centred at the North Pole, PSCs and activated chlorine are still present at all levels in the lower stratosphere on January 9, 2020, there is a good probability that a significant O3 loss may happen in 2020. But since, as shown by the unprecedented depletion of 39% in 2010/11, the loss depends on the vortex duration, strength and possible re-noxification, it is difficult to predict in advance the amplitude of the cumulative loss at the end of the winter.Shown in this presentation will be the evolution of ozone loss and re-noxification in the Arctic vortex during the winter 2019/20 compared to previous winters and REPROBUS and SLIMCAT CTM simulations. |
author2 |
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) TROPO - LATMOS 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) Finnish Meteorological Institute (FMI) Department of Physics Toronto University of Toronto |
format |
Conference Object |
author |
Goutail, Florence Pommereau, Jean-Pierre Pazmino, Andrea Lefèvre, Franck Clerbaux, Cathy Boynard, Anne Hadji-Lazaro, Juliette Chipperfield, Martyn Feng, Wuhu Roozendael, Michel Van Jepsen, Nis Hansen, Georg Kivi, Rigel Bognar, Kristof Strong, Kimberly Walker, Kaley |
author_facet |
Goutail, Florence Pommereau, Jean-Pierre Pazmino, Andrea Lefèvre, Franck Clerbaux, Cathy Boynard, Anne Hadji-Lazaro, Juliette Chipperfield, Martyn Feng, Wuhu Roozendael, Michel Van Jepsen, Nis Hansen, Georg Kivi, Rigel Bognar, Kristof Strong, Kimberly Walker, Kaley |
author_sort |
Goutail, Florence |
title |
Total ozone loss during the 2019/20 Arctic winter and comparison to previous years |
title_short |
Total ozone loss during the 2019/20 Arctic winter and comparison to previous years |
title_full |
Total ozone loss during the 2019/20 Arctic winter and comparison to previous years |
title_fullStr |
Total ozone loss during the 2019/20 Arctic winter and comparison to previous years |
title_full_unstemmed |
Total ozone loss during the 2019/20 Arctic winter and comparison to previous years |
title_sort |
total ozone loss during the 2019/20 arctic winter and comparison to previous years |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://insu.hal.science/insu-03026807 https://doi.org/10.5194/egusphere-egu2020-3571 |
op_coverage |
Online, Germany |
geographic |
Arctic North Pole |
geographic_facet |
Arctic North Pole |
genre |
Arctic North Pole polar night |
genre_facet |
Arctic North Pole polar night |
op_source |
EGU General Assembly 2020 https://insu.hal.science/insu-03026807 EGU General Assembly 2020, May 2020, Online, Germany. ⟨10.5194/egusphere-egu2020-3571⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu2020-3571 insu-03026807 https://insu.hal.science/insu-03026807 doi:10.5194/egusphere-egu2020-3571 |
op_doi |
https://doi.org/10.5194/egusphere-egu2020-3571 |
_version_ |
1782330722834448384 |