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Ratio of the seasonal O2 outgassing to the seasonal upper ocean warming by 10° latitude bands. Dashed line indicates the ratios expected based on changes in O2 solubility alone. Ratios from 20°N to 20°S are poorly defined due to weak seasonal forcing. The seasonal O2 outgassing here accounts for the anomalous flux after the mean annual outgassing or ingassing is subtracted.
