Figure 3: Driver of aragonite saturation-state change schematic.
From: The exposure of the Great Barrier Reef to ocean acidification
The change from the open ocean value is separated into three drivers: (1) hydrological cycle calculated considering dilution/mixing associated with a change in salinity (yellow arrow); (2) Net calcification is calculated as a shift in alkalinity and dissolved inorganic carbon at a ratio of 2:1 (blue arrow); (3) net carbon uptake due photosynthesis, respiration and air–sea flux (red arrow). Based on these values, the change in aragonite saturation from the open-ocean state is calculated. Background shows aragonite saturation-state versus dissolved inorganic carbon, CT, and total alkalinity, AT, at a temperature of 25 °C and salinity of 35.
