The LiCor analyser which measures the CO2 content of the water, and the end result on the display – 393.82ppm( parts per million). This would have been about 330ppm when Mariana was born. @ Jeremy Young
Plan of the ship showing where( approximately) the sea-water supply comes from and where Mariana’ s lab is.
As Eithne said in her post, the carbonate lab runs 24 hours a day. So, in addition to running dissolved inorganic carbon and total alkalinity, Eithne and Matthew in their night shift
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