Earth System Dynamics
Earth System Dynamics
ESD
Articles | Volume 7, issue 2
Articles | Volume 7, issue 2
https://doi.org/10.5194/esd-7-295-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/esd-7-295-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 7, issue 2
Research article
 | 
07 Apr 2016
Research article |  | 07 Apr 2016

The Southern Ocean as a constraint to reduce uncertainty in future ocean carbon sinks

A. Kessler and J. Tjiputra

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Short summary
The uncertainty of ocean carbon uptake in ESMs is projected to grow 2-fold by the end of the 21st century. We found that models that take up anomalously low (high) CO2 in the Southern Ocean (SO) today project low (high) cumulative CO2 uptake in the 21st century; thus the SO can be used to constrain future global uptake uncertainty. Inter-model spread in the SO carbon sink arises from variations in the pCO2 seasonality, specifically bias in the simulated timing and amplitude of NPP and SST.
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