Articles | Volume 20, issue 9
https://doi.org/10.5194/acp-20-5837-2020
https://doi.org/10.5194/acp-20-5837-2020
Research article
 | 
15 May 2020
Research article |  | 15 May 2020

Simulating age of air and the distribution of SF6 in the stratosphere with the SILAM model

Rostislav Kouznetsov, Mikhail Sofiev, Julius Vira, and Gabriele Stiller

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Short summary
Estimates of the age of stratospheric air (AoA), its distribution, and trends, obtained by different experimental methods, differ among each other. AoA derived form MIPAS satellite observations, the richest observational dataset on sulfur hexafluoride (SF6) in the stratosphere, are a clear outlier. With multi-decade simulations of AoA and SF6 in the stratosphere, we show that the origin of the discrepancy is in a methodology of deriving AoA from observations rather than in observational data.
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