Stratospheric ozone trends for 1984–2021 in the SAGE II–OSIRIS–SAGE III/ISS composite dataset

Bognar, Kristof; Tegtmeier, Susann; Bourassa, Adam; Roth, Chris; Warnock, Taran; Zawada, Daniel; Degenstein, Doug

doi:https://doi.org/10.5194/acp-22-9553-2022

Articles | Volume 22, issue 14

https://doi.org/10.5194/acp-22-9553-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Atmospheric ozone and related species in the early 2020s:...

https://doi.org/10.5194/acp-22-9553-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 14

Research article

|

25 Jul 2022

Research article |

| 25 Jul 2022

Stratospheric ozone trends for 1984–2021 in the SAGE II–OSIRIS–SAGE III/ISS composite dataset

Kristof Bognar, Susann Tegtmeier, Adam Bourassa, Chris Roth, Taran Warnock, Daniel Zawada, and Doug Degenstein

Data sets

Stratospheric Aerosol and Gas Experiment (SAGE) II Version 7.0 Aerosol, O3, NO2 and H2O Profiles in binary format NASA/LARC/SD/ASDC https://doi.org/10.5067/ERBS/SAGEII/SOLAR_BINARY_L2-V7.0

SAGE III/ISS L2 Solar Event Species Profiles (HDF5) V052 NASA/LARC/SD/ASDC https://doi.org/10.5067/ISS/SAGEIII/SOLAR_HDF5_L2-V5.2

MLS/Aura Level 2 Ozone (O3) Mixing Ratio V004 M. Schwartz, L. Froidevaux, N. Livesey, and W. Read https://doi.org/10.5067/Aura/MLS/DATA2017

SPARC/IO3C/GAW Report on Long-term Ozone Trends and Uncertainties in the Stratosphere (https://arg.usask.ca/docs/LOTUS_regression/index.html) Irina Petropavlovskikh, Sophie Godin-Beekmann, Daan Hubert, Robert Damadeo, Birgit Hassler, and Viktoria Sofieva https://doi.org/10.17874/f899e57a20b

Short summary

We quantify recent changes in stratospheric ozone (outside the polar regions) using a combination of three satellite datasets. We find that upper stratospheric ozone have increased significantly since 2000, although the recovery shows an unexpected pause in the Northern Hemisphere. Combined with the likely decrease in ozone in the lower stratosphere, this presents an interesting challenge for predicting the future of the ozone layer.