Articles | Volume 12, issue 11
https://doi.org/10.5194/bg-12-3197-2015
https://doi.org/10.5194/bg-12-3197-2015
Research article
 | 
02 Jun 2015
Research article |  | 02 Jun 2015

Methane and carbon dioxide emissions from 40 lakes along a north–south latitudinal transect in Alaska

A. Sepulveda-Jauregui, K. M. Walter Anthony, K. Martinez-Cruz, S. Greene, and F. Thalasso

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Katey Walter Anthony on behalf of the Authors (09 Mar 2015)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (15 Mar 2015) by Warwick F. Vincent
RR by Anonymous Referee #3 (19 Mar 2015)
ED: Publish subject to minor revisions (Editor review) (05 Apr 2015) by Warwick F. Vincent
AR by Anna Mirena Feist-Polner on behalf of the Authors (16 Apr 2015)  Author's response    Manuscript
ED: Publish as is (25 Apr 2015) by Warwick F. Vincent
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Short summary
This study of methane (CH4) and carbon dioxide (CO2) emission modes from 40 lakes along a latitudinal transect in Alaska revealed that thermokarst lakes formed in Pleistocene-aged icy, organic-rich yedoma-type permafrost had the highest emissions. Ebullition and diffusion were the dominant modes of CH4 and CO2 emissions, respectively. Accounting for the global warming potentials of the gases, the climate warming impact of lake CH4 emissions was 2 times higher than that of CO2.
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