Atmospheric CO2, CH4 and CO mixing ratios observed during MR16-06 cruise

Atmospheric CO2, CH4 and CO mixing ratios observed during a R/V Mirai Arctic Ocean cruise (MR16-06) in August-September 2016. The air sample, drawn from an air intake placed at the front of the starboard compass deck, was passed through a thermoelectric dehumidifier and a Nafion tube dryer to reduce the water vapor, and then introduced in the analyzer. Three standard gases stored in 3 cylinders were sequentially introduced into the analyzer every 25 hours for the calibration. These CO2, CH4, and CO mixing ratios were determined against NIES's original standard scales.