new CO2 calibration done and new CO2 standard used, CO2 calibration was updated on 3-29, so realtime data may have multiple calibrations.

Salinity droped on 3-26-2018 at 1:30 utc, then seemed to recover to normal values on 3-29-2018 at 4:30 utc, salinity was very low compared to m1 on all near m1 passes durring that time period.

Do not use real time data, There were lots of problems with real time data download and a bad pH calibration