Total ozone loss during the 2021/22 Arctic winter and comparison to previous years

Andrea Pazmino; Florence Goutail; Jean-Pierre Pommereau; Franck Lefèvre; Sophie Godin-Beekmann; Alain Hauchecorne; Audrey Lecouffe; Martyn Chipperfield; Wuhu Feng; Michel van Roozendael; Nis Jepsen; Georg Hansen; Rigel Kivi; Ramina Alwarda; Kimberly Strong; Kaley Walker

doi:10.5194/egusphere-egu22-7991

Conference papers

Total ozone loss during the 2021/22 Arctic winter and comparison to previous years

Andrea Pazmino ¹ Florence Goutail ¹ Jean-Pierre Pommereau ¹ Franck Lefèvre ¹ Sophie Godin-Beekmann ¹ Alain Hauchecorne ¹ Audrey Lecouffe ² Martyn Chipperfield ³ Wuhu Feng ³ Michel van Roozendael ⁴ Nis Jepsen ⁵ Georg Hansen ⁶ Rigel Kivi ⁷ Ramina Alwarda ⁸ Kimberly Strong ⁸ Kaley Walker ⁸

1 STRATO - LATMOS

LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales

2 LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales

3 SEE - School of Earth and Environment [Leeds]

4 BIRA-IASB - Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique

5 DMI - Danish Meteorological Institute

6 NILU - Norwegian Institute for Air Research

7 FMI - Finnish Meteorological Institute

8 Department of Physics [Toronto]

Abstract : The amplitude and rate of ozone depletion in the Arctic is monitored every year since 1994 by comparison between SAOZ UV-Vis ground-based network from NDACC and Multi-Sensor Reanalysis 2 (MSR-2) total ozone measurements over 8 stations in the Arctic and 3-D chemical transport model simulations in which ozone is considered as a passive tracer. The passive ozone method allows determining 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 25-38% in colder and longer ones, which the record winters estimated in 2010/2011 and 2019/2020. In this study, the interannual variability of 10-days average rate of 2021/2022 winter will be analyzed and compared to previous years. In addition, SAOZ NO2 data will be used to evaluate re- noxification in the Arctic. The long-term ozone loss series estimated from measurements will be compared to REPROBUS and SLIMCAT CTM simulations. Relationship with illuminated Polar Stratospheric Clouds will be also presented.

Keywords : Measurement Instrument Network NDACC Atmospheric Chemistry Ozone Loss Arctic SAOZ

Document type :

Conference papers

Domain :

Physics [physics] / Physics [physics] / Atmospheric and Oceanic Physics [physics.ao-ph]

Sciences of the Universe [physics] / Ocean, Atmosphere

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Submitted on : Wednesday, April 13, 2022 - 4:59:39 PM
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Total ozone loss during the 2021/22 Arctic winter and comparison to previous years

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Total ozone loss during the 2021/22 Arctic winter and comparison to previous years

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