Articles | Volume 16, issue 1
Biogeosciences, 16, 117–134, 2019

Special issue: The 10th International Carbon Dioxide Conference (ICDC10)...

Biogeosciences, 16, 117–134, 2019

Research article 16 Jan 2019

Research article | 16 Jan 2019

Global atmospheric CO2 inverse models converging on neutral tropical land exchange, but disagreeing on fossil fuel and atmospheric growth rate

Benjamin Gaubert et al.


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) (11 Dec 2018) by Paul Stoy
AR by Benjamin Gaubert on behalf of the Authors (11 Dec 2018)  Author's response
ED: Publish as is (14 Dec 2018) by Paul Stoy

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Short summary
We have compared global carbon budgets calculated from numerical inverse models and CO2 observations, and evaluated how these systems reproduce vertical gradients in atmospheric CO2 from aircraft measurements. We found that available models have converged on near-neutral tropical total fluxes for several decades, implying consistent sinks in intact tropical forests, and that assumed fossil fuel emissions and predicted atmospheric growth rates are now the dominant axes of disagreement.
Final-revised paper