Articles | Volume 23, issue 11
Research article
13 Jun 2023
Research article |  | 13 Jun 2023

Estimating methane emissions in the Arctic nations using surface observations from 2008 to 2019

Sophie Wittig, Antoine Berchet, Isabelle Pison, Marielle Saunois, Joël Thanwerdas, Adrien Martinez, Jean-Daniel Paris, Toshinobu Machida, Motoki Sasakawa, Douglas E. J. Worthy, Xin Lan, Rona L. Thompson, Espen Sollum, and Mikhail Arshinov


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-1257', Anonymous Referee #1, 03 Feb 2023
    • AC1: 'Reply on RC1', Sophie Wittig, 11 Apr 2023
  • RC2: 'Comment on egusphere-2022-1257', Anonymous Referee #2, 10 Feb 2023
    • AC2: 'Reply on RC2', Sophie Wittig, 11 Apr 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Sophie Wittig on behalf of the Authors (12 Apr 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (19 Apr 2023) by Tim Butler
AR by Sophie Wittig on behalf of the Authors (28 Apr 2023)
Short summary
Here, an inverse modelling approach is applied to estimate CH4 sources and sinks in the Arctic from 2008 to 2019. We study the magnitude, seasonal patterns and trends from different sources during recent years. We also assess how the current observation network helps to constrain fluxes. We find that constraints are only significant for North America and, to a lesser extent, West Siberia, where the observation network is relatively dense. We find no clear trend over the period of inversion.
Final-revised paper