Chlorine isotope composition in chlorofluorocarbons CFC-11, CFC-12 and CFC-113 in firn, stratospheric and tropospheric air

Allin, S. J.; Laube, J. C.; Witrant, E.; Kaiser, J.; McKenna, E.; Dennis, P.; Mulvaney, R.; Capron, E.; Martinerie, P.; Röckmann, T.; Blunier, T.; Schwander, J.; Fraser, P. J.; Langenfelds, R. L.; Sturges, W. T.

doi:https://doi.org/10.5194/acp-15-6867-2015

Articles | Volume 15, issue 12

https://doi.org/10.5194/acp-15-6867-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-15-6867-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 12

Research article

|

23 Jun 2015

Research article |

| 23 Jun 2015

Chlorine isotope composition in chlorofluorocarbons CFC-11, CFC-12 and CFC-113 in firn, stratospheric and tropospheric air

S. J. Allin, J. C. Laube, E. Witrant, J. Kaiser, E. McKenna, P. Dennis, R. Mulvaney, E. Capron, P. Martinerie, T. Röckmann, T. Blunier, J. Schwander, P. J. Fraser, R. L. Langenfelds, and W. T. Sturges

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Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC C11796: 'review of Allin et al', Anonymous Referee #1, 02 Feb 2015
- AC C13120: 'Author response to referee 1', Sam Allin, 13 May 2015
RC C11974: 'Review Allin et al.', Anonymous Referee #2, 06 Feb 2015
- AC C13135: 'Author response to referee 2', Sam Allin, 13 May 2015

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AR: Author's response | RR: Referee report | ED: Editor decision

AR by Sam Allin on behalf of the Authors (13 May 2015) Manuscript

ED: Publish as is (03 Jun 2015) by James B. Burkholder

AR by Sam Allin on behalf of the Authors (05 Jun 2015) Manuscript

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Short summary

Stratospheric ozone protects life on Earth from harmful UV-B radiation. Chlorofluorocarbons (CFCs) are man-made compounds which act to destroy this barrier. This paper presents (1) the first measurements of the stratospheric δ(37Cl) of CFCs -11 and -113; (2) the first quantification of long-term trends in the tropospheric δ(37Cl) of CFCs -11, -12 and -113. This study provides a better understanding of source and sink processes associated with these destructive compounds.