Articles | Volume 5, issue 2
Earth Syst. Dynam., 5, 423–439, 2014

Special issue: 9th International Carbon Dioxide Conference (ICDC9) (ESD/ACP/AMT/BG...

Earth Syst. Dynam., 5, 423–439, 2014

Research article 01 Dec 2014

Research article | 01 Dec 2014

Continued increase in atmospheric CO2 seasonal amplitude in the 21st century projected by the CMIP5 Earth system models

F. Zhao and N. Zeng


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
AR by F. Zhao on behalf of the Authors (29 Sep 2014)  Author's response    Manuscript
ED: Publish as is (28 Oct 2014) by Josep Canadell
Short summary
This paper presents the CMIP5 model predictions on the seasonal characteristics of global carbon cycle. We show a model consensus that the amplitude of this seasonal cycle will increase in the future under the RCP8.5 emission scenario. This is mostly due to enhanced ecosystem productivity in high latitude regions. While the models' ensemble CO2 amplitude increase is close to observation, our results suggest the underlying mechanisms may not be realistic.
Final-revised paper