Articles | Volume 17, issue 23
Research article
08 Dec 2020
Research article |  | 08 Dec 2020

Spatially resolved evaluation of Earth system models with satellite column-averaged CO2

Bettina K. Gier, Michael Buchwitz, Maximilian Reuter, Peter M. Cox, Pierre Friedlingstein, and Veronika Eyring


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: Publish subject to minor revisions (review by editor) (05 Sep 2020) by Trevor Keenan
AR by Svenja Lange on behalf of the Authors (09 Oct 2020)  Author's response    Manuscript
ED: Publish as is (16 Oct 2020) by Trevor Keenan
Short summary
Models from Coupled Model Intercomparison Project (CMIP) phases 5 and 6 are compared to a satellite data product of column-averaged CO2 mole fractions (XCO2). The previously believed discrepancy of the negative trend in seasonal cycle amplitude in the satellite product, which is not seen in in situ data nor in the models, is attributed to a sampling characteristic. Furthermore, CMIP6 models are shown to have made progress in reproducing the observed XCO2 time series compared to CMIP5.
Final-revised paper