Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 20
Articles | Volume 25, issue 20
https://doi.org/10.5194/acp-25-13299-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/acp-25-13299-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 20
Research article
 | 
22 Oct 2025
Research article |  | 22 Oct 2025

Decadal tropospheric ozone radiative forcing estimations with offline radiative modelling and IAGOS aircraft observations

Pasquale Sellitto, Audrey Gaudel, and Bastien Sauvage

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Short summary
Tropospheric ozone is a potent greenhouse gas: its anthropogenic levels rise contributes to climate change. We evaluate tropospheric ozone trends and climate impacts with aircraft data and a radiative model, comparing a baseline period (1994–2004) to different recent time periods (2011–2016 to 2020-2023). Tropospheric ozone levels increasing trends progressively stopped and even decreased in the upper troposphere. Correspondingly, the decadal ozone radiative forcing is progressively decreasing.
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