Articles | Volume 17, issue 4
Research article
23 Feb 2024
Research article |  | 23 Feb 2024

Ship- and aircraft-based XCH4 over oceans as a new tool for satellite validation

Astrid Müller, Hiroshi Tanimoto, Takafumi Sugita, Prabir K. Patra, Shin-ichiro Nakaoka, Toshinobu Machida, Isamu Morino, André Butz, and Kei Shiomi


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on amt-2023-144', Anonymous Referee #1, 17 Oct 2023
    • AC1: 'Reply on RC1', Astrid Müller, 08 Dec 2023
  • RC2: 'Comment on amt-2023-144', Anonymous Referee #2, 24 Oct 2023
    • AC2: 'Reply on RC2', Astrid Müller, 08 Dec 2023
  • RC3: 'Comment on amt-2023-144', Anonymous Referee #3, 25 Oct 2023
    • AC3: 'Reply on RC3', Astrid Müller, 08 Dec 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Astrid Müller on behalf of the Authors (11 Dec 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (27 Dec 2023) by Brigitte Buchmann
AR by Astrid Müller on behalf of the Authors (28 Dec 2023)

The requested paper has a corresponding corrigendum published. Please read the corrigendum first before downloading the article.

Short summary
Satellite CH4 observations with high accuracy are needed to understand changes in atmospheric CH4 concentrations. But over oceans, reference data are limited. We combine various ship and aircraft observations with the help of atmospheric chemistry models to derive observation-based column-averaged mixing ratios of CH4 (obs. XCH4). We discuss three different approaches and demonstrate the applicability of the new reference dataset for carbon cycle studies and satellite evaluation.