Articles | Volume 15, issue 17
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

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

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

Short summary
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.
Final-revised paper