Articles | Volume 20, issue 9
Atmos. Chem. Phys., 20, 5837–5859, 2020
https://doi.org/10.5194/acp-20-5837-2020
Atmos. Chem. Phys., 20, 5837–5859, 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 et al.

Data sets

The ERA-Interim reanalysis: configuration and performance of the data assimilation system (https://www.ecmwf.int/en/forecasts/datasets/browse-reanalysis-datasets) D. P. Dee et al. https://doi.org/10.1002/qj.828

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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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