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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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Stratospheric lifetimes determine the global warming and ozone depletion potentials of chlorofluorocarbons. We present new estimates of the CFC-11/CFC-12 lifetime ratio from satellite and model data (ACE-FTS, HIRDLS, MIPAS, and EMAC/CLaMS). Our estimates of 0.46+/-0.04 (satellites) and 0.48+/-0.07 (model) are in excellent agreement with the recent SPARC reassessment. Having smaller uncertainties than other studies, our results can help to better constrain future CFC lifetime recommendations.
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Articles | Volume 14, issue 22
Atmos. Chem. Phys., 14, 12479–12497, 2014
https://doi.org/10.5194/acp-14-12479-2014

Special issue: The Modular Earth Submodel System (MESSy) (ACP/GMD inter-journal...

Atmos. Chem. Phys., 14, 12479–12497, 2014
https://doi.org/10.5194/acp-14-12479-2014

Research article 27 Nov 2014

Research article | 27 Nov 2014

Stratospheric lifetime ratio of CFC-11 and CFC-12 from satellite and model climatologies

L. Hoffmann et al.

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Latest update: 27 Jan 2021
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Short summary
Stratospheric lifetimes determine the global warming and ozone depletion potentials of chlorofluorocarbons. We present new estimates of the CFC-11/CFC-12 lifetime ratio from satellite and model data (ACE-FTS, HIRDLS, MIPAS, and EMAC/CLaMS). Our estimates of 0.46+/-0.04 (satellites) and 0.48+/-0.07 (model) are in excellent agreement with the recent SPARC reassessment. Having smaller uncertainties than other studies, our results can help to better constrain future CFC lifetime recommendations.
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