In situ phase-domain calibration of oxygen Optodes on profiling floats

Using data from eight floats with deployment casts, comparison of phase-domain linear correction with oxygen-domain linear correction showed a difference of less than ∼±2%. Comparison of surface gain correction with deployment casts found gain-corrected values below the depth of the oxygen minimum to be consistently low, with residuals of approximately −0.5 to −4.5%.