Fig. 4: Global surface ocean γCO2 distribution, seasonal and interannual variation.
From: A new indicator can assess absorption capacity for carbon dioxide and ocean acidification
Calculated using model temperature, salinity, pH, and pCO2. For details, please refer to the METHODS. a The left panel shows the global distribution of surface ocean γCO2 in 2020, while the right panel presents its latitudinal distribution. b, c Monthly variations of surface ocean γCO2 in the Northern and Southern Hemispheres during 2016–2020. d Interannual variations of surface ocean γCO2 from 1992 to 2020, with the wavy lines representing the seasonal fluctuations of γCO2. γCO2 was a 13% in global ocean decline over the past 30 years.
