Parameter | Derivation | Significance
Oxygen saturation | The ratio (as a percent) of measured oxygen concentration to the oxygen concentration of water at equilibrium with the atmosphere is based on potential temperature and salinity. | Air-sea oxygen flux.
| Apparent oxygen utilization (AOU) | The deviation of the measured dissolved oxygen from the theoretical solubility of oxygen at the measured temperature and salinity. | Sum of biological activities in terms of consumption / production of oxygen.
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