Articles | Volume 17, issue 8
Research article
18 Apr 2024
Research article |  | 18 Apr 2024

Greenhouse gas retrievals for the CO2M mission using the FOCAL method: first performance estimates

Stefan Noël, Michael Buchwitz, Michael Hilker, Maximilian Reuter, Michael Weimer, Heinrich Bovensmann, John P. Burrows, Hartmut Bösch, and Ruediger Lang


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Stefan Noël on behalf of the Authors (25 Jan 2024)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (26 Jan 2024) by Thomas Wagner
RR by Anonymous Referee #1 (25 Feb 2024)
RR by Philipp Hochstaffl (25 Feb 2024)
ED: Publish subject to technical corrections (26 Feb 2024) by Thomas Wagner
AR by Stefan Noël on behalf of the Authors (01 Mar 2024)  Author's response   Manuscript 
Short summary
FOCAL-CO2M is one of the three operational retrieval algorithms which will be used to derive XCO2 and XCH4 from measurements of the forthcoming European CO2M mission. We present results of applications of FOCAL-CO2M to simulated spectra, from which confidence is gained that the algorithm is able to fulfil the challenging requirements on systematic errors for the CO2M mission (spatio-temporal bias ≤ 0.5 ppm for XCO2 and ≤ 5 ppb for XCH4).