Evaluation of interannual variability of Arctic and Antarctic ozone loss since 1989
International audience Ozone depletion over Polar Regions is monitored each year by satellite and ground-based instruments. The first signs of healing of the ozone layer linked to the decrease of ozone destructive substances (ODSs) were observed in Antarctica using different metrics (ozone mean valu...
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ftinsu:oai:HAL:insu-03183355v1 2023-11-05T03:36:32+01:00 Evaluation of interannual variability of Arctic and Antarctic ozone loss since 1989 Goutail, Florence Pazmino, Andrea Pommereau, Jean-Pierre Lefèvre, Franck Godin-Beekmann, Sophie Hauchecorne, Alain Lecouffe, Audrey Clerbaux, Cathy Boynard, Anne Hadji-Lazaro, Juliette Chipperfield, Martyn Feng, Wuhu van Roozendaël, Michel Jepsen, Nis Hansen, Georg, H Kivi, Rigel Bognar, Kristof Strong, Kimberly Walker, Kaley Colwell, Steve 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) Norsk Institutt for Luftforskning (NILU) Finnish Meteorological Institute (FMI) Department of Physics Toronto University of Toronto British Antarctic Survey (BAS) Natural Environment Research Council (NERC) Online, Germany 2021-04 https://insu.hal.science/insu-03183355 https://doi.org/10.5194/egusphere-egu21-12805 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu21-12805 insu-03183355 https://insu.hal.science/insu-03183355 doi:10.5194/egusphere-egu21-12805 EGU General Assembly 2021 https://insu.hal.science/insu-03183355 EGU General Assembly 2021, Apr 2021, Online, Germany. ⟨10.5194/egusphere-egu21-12805⟩ [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/conferenceObject Conference papers 2021 ftinsu https://doi.org/10.5194/egusphere-egu21-12805 2023-10-11T16:33:36Z International audience Ozone depletion over Polar Regions is monitored each year by satellite and ground-based instruments. The first signs of healing of the ozone layer linked to the decrease of ozone destructive substances (ODSs) were observed in Antarctica using different metrics (ozone mean values, ozone mass deficit, area of the ozone hole) and simple or sophisticated models. Chemistry climate models predict that climate change will not affect expected ozone recovery over Antarctica but will accelerate recovery in the Arctic due to the possible enhancement of the Brewer Dobson circulation. However, ozone loss observations by SAOZ UV-Vis spectrometers do not show a clear sign of recovery in the latter region. In addition, a record of 38% ozone loss in 2010/2011 and 2019/2020 was estimated.In this study, the vortex-averaged ozone loss in the last three decades will be evaluated for both Polar Regions using the passive ozone tracer of two chemical transport models (REPROBUS and SLIMCAT CTMs) and total ozone observations from SAOZ and satellite observations (IASI/METOP and Multi-Sensor Reanalysis (MSR-2)).The tracer method allows us to determine the evolution of the daily rate of ozone destruction, and the amplitude of the cumulative loss at the end of the winter. The cumulative ozone destruction in the Artic varies between 0-10% in relatively warm winters with short vortex duration to up to 25-38% in colder winters with longer vortex persistence, while in Antarctica it is mostly stable, around 50%.Interannual variability of 10-days average rate will be analyzed and compared between both hemispheres as well as the timing to reach different thresholds of absolute ozone loss values. Finally, linear trend of ozone loss and temperature since 2000 will be estimated in both Polar Regions in order to evaluate possible ozone recovery. Conference Object Antarc* Antarctic Antarctica Arctic Climate change Institut national des sciences de l'Univers: HAL-INSU |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
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 Pazmino, Andrea Pommereau, Jean-Pierre Lefèvre, Franck Godin-Beekmann, Sophie Hauchecorne, Alain Lecouffe, Audrey Clerbaux, Cathy Boynard, Anne Hadji-Lazaro, Juliette Chipperfield, Martyn Feng, Wuhu van Roozendaël, Michel Jepsen, Nis Hansen, Georg, H Kivi, Rigel Bognar, Kristof Strong, Kimberly Walker, Kaley Colwell, Steve Evaluation of interannual variability of Arctic and Antarctic ozone loss since 1989 |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience Ozone depletion over Polar Regions is monitored each year by satellite and ground-based instruments. The first signs of healing of the ozone layer linked to the decrease of ozone destructive substances (ODSs) were observed in Antarctica using different metrics (ozone mean values, ozone mass deficit, area of the ozone hole) and simple or sophisticated models. Chemistry climate models predict that climate change will not affect expected ozone recovery over Antarctica but will accelerate recovery in the Arctic due to the possible enhancement of the Brewer Dobson circulation. However, ozone loss observations by SAOZ UV-Vis spectrometers do not show a clear sign of recovery in the latter region. In addition, a record of 38% ozone loss in 2010/2011 and 2019/2020 was estimated.In this study, the vortex-averaged ozone loss in the last three decades will be evaluated for both Polar Regions using the passive ozone tracer of two chemical transport models (REPROBUS and SLIMCAT CTMs) and total ozone observations from SAOZ and satellite observations (IASI/METOP and Multi-Sensor Reanalysis (MSR-2)).The tracer method allows us to determine the evolution of the daily rate of ozone destruction, and the amplitude of the cumulative loss at the end of the winter. The cumulative ozone destruction in the Artic varies between 0-10% in relatively warm winters with short vortex duration to up to 25-38% in colder winters with longer vortex persistence, while in Antarctica it is mostly stable, around 50%.Interannual variability of 10-days average rate will be analyzed and compared between both hemispheres as well as the timing to reach different thresholds of absolute ozone loss values. Finally, linear trend of ozone loss and temperature since 2000 will be estimated in both Polar Regions in order to evaluate possible ozone recovery. |
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) Norsk Institutt for Luftforskning (NILU) Finnish Meteorological Institute (FMI) Department of Physics Toronto University of Toronto British Antarctic Survey (BAS) Natural Environment Research Council (NERC) |
format |
Conference Object |
author |
Goutail, Florence Pazmino, Andrea Pommereau, Jean-Pierre Lefèvre, Franck Godin-Beekmann, Sophie Hauchecorne, Alain Lecouffe, Audrey Clerbaux, Cathy Boynard, Anne Hadji-Lazaro, Juliette Chipperfield, Martyn Feng, Wuhu van Roozendaël, Michel Jepsen, Nis Hansen, Georg, H Kivi, Rigel Bognar, Kristof Strong, Kimberly Walker, Kaley Colwell, Steve |
author_facet |
Goutail, Florence Pazmino, Andrea Pommereau, Jean-Pierre Lefèvre, Franck Godin-Beekmann, Sophie Hauchecorne, Alain Lecouffe, Audrey Clerbaux, Cathy Boynard, Anne Hadji-Lazaro, Juliette Chipperfield, Martyn Feng, Wuhu van Roozendaël, Michel Jepsen, Nis Hansen, Georg, H Kivi, Rigel Bognar, Kristof Strong, Kimberly Walker, Kaley Colwell, Steve |
author_sort |
Goutail, Florence |
title |
Evaluation of interannual variability of Arctic and Antarctic ozone loss since 1989 |
title_short |
Evaluation of interannual variability of Arctic and Antarctic ozone loss since 1989 |
title_full |
Evaluation of interannual variability of Arctic and Antarctic ozone loss since 1989 |
title_fullStr |
Evaluation of interannual variability of Arctic and Antarctic ozone loss since 1989 |
title_full_unstemmed |
Evaluation of interannual variability of Arctic and Antarctic ozone loss since 1989 |
title_sort |
evaluation of interannual variability of arctic and antarctic ozone loss since 1989 |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://insu.hal.science/insu-03183355 https://doi.org/10.5194/egusphere-egu21-12805 |
op_coverage |
Online, Germany |
genre |
Antarc* Antarctic Antarctica Arctic Climate change |
genre_facet |
Antarc* Antarctic Antarctica Arctic Climate change |
op_source |
EGU General Assembly 2021 https://insu.hal.science/insu-03183355 EGU General Assembly 2021, Apr 2021, Online, Germany. ⟨10.5194/egusphere-egu21-12805⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu21-12805 insu-03183355 https://insu.hal.science/insu-03183355 doi:10.5194/egusphere-egu21-12805 |
op_doi |
https://doi.org/10.5194/egusphere-egu21-12805 |
_version_ |
1781691490546745344 |