Articles | Volume 15, issue 6
Research article
22 Mar 2018
Research article |  | 22 Mar 2018

Arctic Ocean CO2 uptake: an improved multiyear estimate of the air–sea CO2 flux incorporating chlorophyll a concentrations

Sayaka Yasunaka, Eko Siswanto, Are Olsen, Mario Hoppema, Eiji Watanabe, Agneta Fransson, Melissa Chierici, Akihiko Murata, Siv K. Lauvset, Rik Wanninkhof, Taro Takahashi, Naohiro Kosugi, Abdirahman M. Omar, Steven van Heuven, and Jeremy T. Mathis


Interactive discussion

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
ED: Reconsider after major revisions (07 Nov 2017) by Alexey V. Eliseev
AR by Sayaka Yasunaka on behalf of the Authors (19 Dec 2017)  Author's response   Manuscript 
ED: Referee Nomination & Report Request started (19 Dec 2017) by Alexey V. Eliseev
RR by Anonymous Referee #1 (25 Jan 2018)
ED: Publish subject to technical corrections (25 Jan 2018) by Alexey V. Eliseev
AR by Sayaka Yasunaka on behalf of the Authors (30 Jan 2018)  Author's response   Manuscript 
Short summary
We estimated monthly air–sea CO2 fluxes in the Arctic Ocean and its adjacent seas north of 60° N from 1997 to 2014, after mapping pCO2 in the surface water using a self-organizing map technique. The addition of Chl a as a parameter enabled us to improve the estimate of pCO2 via better representation of its decline in spring. The uncertainty in the CO2 flux estimate was reduced, and a net annual Arctic Ocean CO2 uptake of 180 ± 130 Tg C y−1 was determined to be significant.
Final-revised paper