Total ozone loss during the 2017/18 Arctic winter and comparison to previous years
International audience The amplitude of ozone depletion in the Arctic is monitored every year since 1994 by comparison between total ozone measurements of eight SAOZ / NDACC UV-Vis spectrometers deployed in the Arctic and 3-D chemical transport model simulations in which ozone is considered as a pas...
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ftsorbonneuniv:oai:HAL:insu-01967715v1 2023-11-05T03:38:55+01:00 Total ozone loss during the 2017/18 Arctic winter and comparison to previous years Goutail, Florence Pommereau, Jean-Pierre Pazmino, Andrea Lefèvre, Franck Chipperfield, Martyn Feng, Wuhu van Roozendaël, Michel Jepsen, Nis Hansen, Georg Kivi, Rigel Bognar, Kristof Strong, Kimberley 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) Institute for Climate and Atmospheric Science Leeds (ICAS) School of Earth and Environment Leeds (SEE) University of Leeds-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 Vienna, Austria 2018-04-04 https://insu.hal.science/insu-01967715 en eng HAL CCSD insu-01967715 https://insu.hal.science/insu-01967715 20th EGU General Assembly 2018 https://insu.hal.science/insu-01967715 20th EGU General Assembly 2018, Apr 2018, Vienna, Austria. 20, pp.EGU2018-1978, Geophysical Research Abstracts [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/conferenceObject Conference poster 2018 ftsorbonneuniv 2023-10-10T23:55:33Z International audience The amplitude of ozone depletion in the Arctic is monitored every year since 1994 by comparison between total ozone measurements of eight 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.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 to 25-39% in colder and longer ones.However, as shown by the unprecedented depletion of 39% in 2010/11, the loss is not only dependent on the extension of the vortex in spring, but also on its strength limiting its re-noxification by import of nitrogen oxide species from the outside, as reported by the total NO2 columns measured by the SAOZ instruments.Shown in this presentation will be the evolution of ozone loss and re-noxification in the Arctic during the winter 2017/18 compared to that of previous winters.Compared to observed SAOZ O3 loss, REPROBUS and SLIMCAT CTM simulations are showing similar losses, however the agreement may vary from one year to the other, depending on the assumptions of vortex strength and isolation. The comparison between ozone loss amplitudes and ozone loss rates, seen each year since 1994 by SAOZ and the two CTM simulations will be followed by a discussion of possible causes in their variable amplitude. Conference Object Arctic HAL Sorbonne Université |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
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 Chipperfield, Martyn Feng, Wuhu van Roozendaël, Michel Jepsen, Nis Hansen, Georg Kivi, Rigel Bognar, Kristof Strong, Kimberley Walker, Kaley Total ozone loss during the 2017/18 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 1994 by comparison between total ozone measurements of eight 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.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 to 25-39% in colder and longer ones.However, as shown by the unprecedented depletion of 39% in 2010/11, the loss is not only dependent on the extension of the vortex in spring, but also on its strength limiting its re-noxification by import of nitrogen oxide species from the outside, as reported by the total NO2 columns measured by the SAOZ instruments.Shown in this presentation will be the evolution of ozone loss and re-noxification in the Arctic during the winter 2017/18 compared to that of previous winters.Compared to observed SAOZ O3 loss, REPROBUS and SLIMCAT CTM simulations are showing similar losses, however the agreement may vary from one year to the other, depending on the assumptions of vortex strength and isolation. The comparison between ozone loss amplitudes and ozone loss rates, seen each year since 1994 by SAOZ and the two CTM simulations will be followed by a discussion of possible causes in their variable amplitude. |
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) Institute for Climate and Atmospheric Science Leeds (ICAS) School of Earth and Environment Leeds (SEE) University of Leeds-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 Chipperfield, Martyn Feng, Wuhu van Roozendaël, Michel Jepsen, Nis Hansen, Georg Kivi, Rigel Bognar, Kristof Strong, Kimberley Walker, Kaley |
author_facet |
Goutail, Florence Pommereau, Jean-Pierre Pazmino, Andrea Lefèvre, Franck Chipperfield, Martyn Feng, Wuhu van Roozendaël, Michel Jepsen, Nis Hansen, Georg Kivi, Rigel Bognar, Kristof Strong, Kimberley Walker, Kaley |
author_sort |
Goutail, Florence |
title |
Total ozone loss during the 2017/18 Arctic winter and comparison to previous years |
title_short |
Total ozone loss during the 2017/18 Arctic winter and comparison to previous years |
title_full |
Total ozone loss during the 2017/18 Arctic winter and comparison to previous years |
title_fullStr |
Total ozone loss during the 2017/18 Arctic winter and comparison to previous years |
title_full_unstemmed |
Total ozone loss during the 2017/18 Arctic winter and comparison to previous years |
title_sort |
total ozone loss during the 2017/18 arctic winter and comparison to previous years |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://insu.hal.science/insu-01967715 |
op_coverage |
Vienna, Austria |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
20th EGU General Assembly 2018 https://insu.hal.science/insu-01967715 20th EGU General Assembly 2018, Apr 2018, Vienna, Austria. 20, pp.EGU2018-1978, Geophysical Research Abstracts |
op_relation |
insu-01967715 https://insu.hal.science/insu-01967715 |
_version_ |
1781694688096419840 |