Articles | Volume 22, issue 10
Atmos. Chem. Phys., 22, 6843–6859, 2022
https://doi.org/10.5194/acp-22-6843-2022

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

Atmos. Chem. Phys., 22, 6843–6859, 2022
https://doi.org/10.5194/acp-22-6843-2022
Research article
25 May 2022
Research article | 25 May 2022

Global total ozone recovery trends attributed to ozone-depleting substance (ODS) changes derived from five merged ozone datasets

Mark Weber et al.

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Short summary
Long-term trends in column ozone have been determined from five merged total ozone datasets spanning the period 1978–2020. We show that ozone recovery due to the decline in stratospheric halogens after the 1990s (as regulated by the Montreal Protocol) is evident outside the tropical region and amounts to half a percent per decade. The ozone recovery in the Northern Hemisphere is however compensated for by the negative long-term trend contribution from atmospheric dynamics since the year 2000.
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