Articles | Volume 15, issue 20
Atmos. Chem. Phys., 15, 11773–11788, 2015
https://doi.org/10.5194/acp-15-11773-2015
Atmos. Chem. Phys., 15, 11773–11788, 2015
https://doi.org/10.5194/acp-15-11773-2015

Research article 23 Oct 2015

Research article | 23 Oct 2015

Sensitivity analysis of the potential impact of discrepancies in stratosphere–troposphere exchange on inferred sources and sinks of CO2

F. Deng et al.

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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 Feng Deng on behalf of the Authors (29 Aug 2015)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (03 Sep 2015) by Manvendra K. Dubey
RR by Anonymous Referee #1 (11 Sep 2015)
RR by Anonymous Referee #2 (22 Sep 2015)
ED: Reconsider after minor revisions (Editor review) (24 Sep 2015) by Manvendra K. Dubey
AR by Feng Deng on behalf of the Authors (30 Sep 2015)  Author's response    Manuscript
ED: Publish as is (12 Oct 2015) by Manvendra K. Dubey
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Short summary
The upper troposphere and lower stratosphere (UTLS) is characterized by strong gradients in the distribution of long-lived tracers, which are sensitive to discrepancies in transport in models. We found that our model overestimates CO2 in the polar UTLS through comparison of modeled CO2 with aircraft observations. We then corrected the modeled CO2 and quantified the impact of the correction on the flux estimates using an atmospheric model together with atmospheric CO2 measured from a satellite.
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