Articles | Volume 22, issue 10
https://doi.org/10.5194/acp-22-6899-2022
https://doi.org/10.5194/acp-22-6899-2022
Research article
 | 
30 May 2022
Research article |  | 30 May 2022

Towards reconstructing the Arctic atmospheric methane history over the 20th century: measurement and modelling results for the North Greenland Ice Core Project firn

Taku Umezawa, Satoshi Sugawara, Kenji Kawamura, Ikumi Oyabu, Stephen J. Andrews, Takuya Saito, Shuji Aoki, and Takakiyo Nakazawa

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2021-736', Anonymous Referee #1, 13 Sep 2021
    • AC1: 'Reply on RC1', Taku Umezawa, 01 Mar 2022
  • RC2: 'Comment on acp-2021-736', Anonymous Referee #2, 20 Oct 2021
    • AC2: 'Reply on RC2', Taku Umezawa, 01 Mar 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Taku Umezawa on behalf of the Authors (01 Mar 2022)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (07 Mar 2022) by Eliza Harris
RR by Anonymous Referee #1 (19 Mar 2022)
RR by Anonymous Referee #2 (21 Mar 2022)
ED: Publish subject to minor revisions (review by editor) (14 Apr 2022) by Eliza Harris
AR by Taku Umezawa on behalf of the Authors (24 Apr 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (02 May 2022) by Eliza Harris
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Short summary
Greenhouse gas methane in the Arctic atmosphere has not been accurately reported for 1900–1980 from either direct observations or ice core reconstructions. By using trace gas data from firn (compacted snow layers above ice sheet), air samples at two Greenland sites, and a firn air transport model, this study suggests a likely range of the Arctic methane reconstruction for the 20th century. Atmospheric scenarios from two previous studies are also evaluated for consistency with the firn data sets.
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