Articles | Volume 21, issue 9
Research article
05 May 2021
Research article |  | 05 May 2021

Stratospheric carbon isotope fractionation and tropospheric histories of CFC-11, CFC-12, and CFC-113 isotopologues

Max Thomas, Johannes C. Laube, Jan Kaiser, Samuel Allin, Patricia Martinerie, Robert Mulvaney, Anna Ridley, Thomas Röckmann, William T. Sturges, and Emmanuel Witrant


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Max Thomas on behalf of the Authors (14 Jan 2021)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (19 Jan 2021) by Farahnaz Khosrawi
RR by Anonymous Referee #1 (02 Feb 2021)
ED: Reconsider after major revisions (02 Feb 2021) by Farahnaz Khosrawi
AR by Anna Wenzel on behalf of the Authors (15 Mar 2021)  Author's response
ED: Publish as is (16 Mar 2021) by Farahnaz Khosrawi
Short summary
CFC gases are destroying the Earth's life-protecting ozone layer. We improve understanding of CFC destruction by measuring the isotopic fingerprint of the carbon in the three most abundant CFCs. These are the first such measurements in the main region where CFCs are destroyed – the stratosphere. We reconstruct the atmospheric isotope histories of these CFCs back to the 1950s by measuring air extracted from deep snow and using a model. The model and the measurements are generally consistent.
Final-revised paper