Articles | Volume 18, issue 24
Atmos. Chem. Phys., 18, 17895–17907, 2018
https://doi.org/10.5194/acp-18-17895-2018

Special issue: Greenhouse gAs Uk and Global Emissions (GAUGE) project (ACP/AMT...

Atmos. Chem. Phys., 18, 17895–17907, 2018
https://doi.org/10.5194/acp-18-17895-2018

Research article 17 Dec 2018

Research article | 17 Dec 2018

Detecting changes in Arctic methane emissions: limitations of the inter-polar difference of atmospheric mole fractions

Oscar B. Dimdore-Miles 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 Anna Wenzel on behalf of the Authors (11 Jun 2018)  Author's response
ED: Referee Nomination & Report Request started (28 Jun 2018) by Mathias Palm
RR by Anonymous Referee #3 (09 Jul 2018)
ED: Reconsider after major revisions (29 Aug 2018) by Mathias Palm
AR by Anna Wenzel on behalf of the Authors (07 Nov 2018)  Author's response
ED: Publish as is (30 Nov 2018) by Mathias Palm
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Short summary
The Arctic is experiencing warming trends higher than the global mean. Arctic ecosystems are a large store of carbon. As the soil organic carbon thaws and decomposes, some fraction of this store will eventually be released to the atmosphere as methane. We show that a previously used measurement-based metric to identify changes in Arctic methane emissions does not reliably quantify these changes because it neglects the effect of atmospheric transport. A better metric will combine data and models.
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