Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 21
Articles | Volume 26, issue 21
https://doi.org/10.5194/acp-26-15763-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-15763-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 21
Research article
 | 
10 Nov 2026
Research article |  | 10 Nov 2026

The boundary of nighttime ozone chemical equilibrium as an indicator of local chemistry disturbances in the polar mesopause region

Mikhail Yu. Kulikov, Mikhail V. Belikovich, Aleksey G. Chubarov, Svetlana O. Dementyeva, and Alexander M. Feigin

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Short summary
This study has two primary objectives. First, we use model simulations to investigate the connection between the nighttime ozone chemical equilibrium boundary and mesopause chemistry variability, particularly under polar night conditions. Second, we analyze the evolution of this boundary using combined satellite and reanalysis data for the winter–spring seasons of 2002–2025, with a specific focus on the periods preceding, during, and following sudden stratopause warmings.
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