Articles | Volume 15, issue 17
https://doi.org/10.5194/bg-15-5315-2018
https://doi.org/10.5194/bg-15-5315-2018
Research article
 | 
03 Sep 2018
Research article |  | 03 Sep 2018

Drivers of future seasonal cycle changes in oceanic pCO2

M. Angeles Gallego, Axel Timmermann, Tobias Friedrich, and Richard E. Zeebe

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It is projected that the summer–winter difference in pCO2 levels will be larger in the future. In this paper, we study the causes of this seasonal amplification of pCO2. We found that anthropogenic CO2 enhances the effect of seasonal changes in temperature (T) and dissolved inorganic carbon (DIC) on pCO2 seasonality. This is because the oceanic pCO2 becomes more sensitive to seasonal T and DIC changes when the CO2 concentration is higher.
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