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Biogeosciences An interactive open-access journal of the European Geosciences Union
Journal topic
BG | Volume 16, issue 1
Biogeosciences, 16, 117–134, 2019
https://doi.org/10.5194/bg-16-117-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

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

Biogeosciences, 16, 117–134, 2019
https://doi.org/10.5194/bg-16-117-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

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.
Data sets

HIPPO Merged 10-Second Meteorology, Atmospheric Chemistry, And Aerosol Data S. Wofsy et al. https://doi.org/10.3334/CDIAC/HIPPO_010

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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.
We have compared global carbon budgets calculated from numerical inverse models and CO2...
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