Global, regional and seasonal analysis of total ozone trends derived from the 1995–2020 GTO-ECV climate data record

Coldewey-Egbers, Melanie; Loyola, Diego G.; Lerot, Christophe; Van Roozendael​​​​​​​, Michel

doi:https://doi.org/10.5194/acp-22-6861-2022

Articles | Volume 22, issue 10

https://doi.org/10.5194/acp-22-6861-2022

© 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-22-6861-2022

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

Articles | Volume 22, issue 10

Research article

|

25 May 2022

Research article |

| 25 May 2022

Global, regional and seasonal analysis of total ozone trends derived from the 1995–2020 GTO-ECV climate data record

Melanie Coldewey-Egbers, Diego G. Loyola, Christophe Lerot, and Michel Van Roozendael

Data sets

GOME-type Total Ozone Essential Climate Variable (GTO-ECV) M. Coldewey-Egbers and D. G. Loyola https://doi.org/10.24381/cds.4ebfe4eb

CCI/C3S Total Ozone Column Data from GOME Christophe Lerot https://doi.org/10.18758/71021038

CCI/C3S Total Ozone Column Data from SCIAMACHY Christophe Lerot https://doi.org/10.18758/71021037

CCI/C3S Total Ozone Column Data from OMI Christophe Lerot https://doi.org/10.18758/71021036

CCI/C3S Total Ozone Column Data from GOME-2A Christophe Lerot https://doi.org/10.18758/71021034

CCI/C3S Total Ozone Column Data from GOME-2B Christophe Lerot https://doi.org/10.18758/71021035

Copernicus Sentinel-5P (processed by ESA), TROPOMI Level 2 Ozone Total Column products European Space Agency https://doi.org/10.5270/S5P-ft13p57

Short summary

Monitoring the long-term evolution of ozone and the evaluation of trends is essential to assess the efficacy of the Montreal Protocol and its amendments. The first signs of recovery as a consequence of decreasing amounts of ozone-depleting substances have been reported, but the impact needs to be investigated in more detail. In the Southern Hemisphere significant positive trends were found, but in the Northern Hemisphere the expected increase is still not yet visible.