Articles | Volume 14, issue 22
https://doi.org/10.5194/acp-14-12479-2014
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, C. M. Hoppe, R. Müller, G. S. Dutton, J. C. Gille, S. Griessbach, A. Jones, C. I. Meyer, R. Spang, C. M. Volk, and K. A. Walker

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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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