Articles | Volume 16, issue 21
Atmos. Chem. Phys., 16, 14003–14024, 2016
https://doi.org/10.5194/acp-16-14003-2016
Atmos. Chem. Phys., 16, 14003–14024, 2016
https://doi.org/10.5194/acp-16-14003-2016

Research article 11 Nov 2016

Research article | 11 Nov 2016

Seasonal variability of stratospheric methane: implications for constraining tropospheric methane budgets using total column observations

Katherine M. Saad 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 Katherine Saad on behalf of the Authors (18 Aug 2016)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (02 Sep 2016) by Patrick Jöckel
RR by Anonymous Referee #3 (13 Oct 2016)
ED: Reconsider after minor revisions (Editor review) (14 Oct 2016) by Patrick Jöckel
AR by Katherine Saad on behalf of the Authors (24 Oct 2016)  Author's response    Manuscript
ED: Publish as is (25 Oct 2016) by Patrick Jöckel
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Short summary
Current approaches to constrain the global methane budget assimilate total column measurements into models, but model biases can impact results. We use tropospheric methane columns to evaluate model transport errors and identify a seasonal time lag in the Northern Hemisphere troposphere masked by stratospheric compensating effects. We find systematic biases in the stratosphere will alias into model-derived emissions estimates, especially those in the high Northern latitudes that vary seasonally.
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