Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 1
Articles | Volume 26, issue 1
https://doi.org/10.5194/acp-26-391-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/acp-26-391-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 1
Research article
 | 
08 Jan 2026
Research article |  | 08 Jan 2026

Atmospheric lifetime of sulphur hexafluoride (SF6) and five other trace gases in the BASCOE model driven by three reanalyses

Sarah Vervalcke, Quentin Errera, Roland Eichinger, Thomas Reddmann, Simon Chabrillat, Marc Op de beeck, Gabriele Stiller, and Emmanuel Mahieu

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Short summary
This study presents three simulations of atmospheric chemistry with the Belgian Assimilation System for Chemical Observations chemistry transport model, driven by different meteorological data sets. Newly implemented SF6 chemistry enables stratospheric transport studies. Results agree with satellite observations. The derived lifetimes of six trace gases agree with the literature, but SF6 shows larger sensitivity to the choice of meteorology. The lifetime of SF6 ranges from 1900 to 2600 years.
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