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Biogeosciences An interactive open-access journal of the European Geosciences Union
Journal topic
Volume 15, issue 17
Biogeosciences, 15, 5315-5327, 2018
https://doi.org/10.5194/bg-15-5315-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 15, 5315-5327, 2018
https://doi.org/10.5194/bg-15-5315-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 03 Sep 2018

Research article | 03 Sep 2018

Drivers of future seasonal cycle changes in oceanic pCO2

M. Angeles Gallego et al.
Data sets

An updated observation-based global monthly gridded sea surface pCO_2 and air-sea CO_2 flux product from 1982 through 2015 and its monthly climatology (NCEI Accession 0160558), Version 2.2. NOAA National Centers for Environmental Information, Dataset P. Landschützer, N. Gruber, and D. Bakker https://doi.org/10.7289/V5Z899N6

Climatological Distributions of pH, pCO_2, Total CO_2, Alkalinity, and CaCO_3 Saturation in the Global Surface Ocean, ORNL/CDIAC-160, NDP-094, Carbon Dioxide Information Analysis Center T. Takahashi, S. C. Sutherland, D. W. Chipman, J. G. Goddard, T. Newberger, and C. Sweeney https://doi.org/10.3334/CDIAC/OTG.NDP094

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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.
It is projected that the summer–winter difference in pCO2 levels will be larger in the future....
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