M/S Silja Serenade (Helsinki-Stockholm) pCO2 underway measurements in 2018-08@en

Quality control:
Measurements during calibration, cleaning, maintenance and low discharge have been removed.
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Flag system:
A flag system is applied to the data. Good data that passes the flag control, gets the flag of 11111111. If the raw CO2 partial pressure (not calibration corrected) is out of boundaries (20-1200 ppm), the first digit changes to 9, i.e. if this is only abnormality, the flag would be 9111111. All flags and their boundary limits are listed in the table below. […]