Underway temperature and salinity data was collected along the cruise track with two autonomous measurement systems. Usually, the systems are changed after 12 hours. While temperature is taken at the water inlet in about 6.5 m depth, salinity is estimated within the interior measurement container from conductivity and interior temperature. Temperature and salinity were calibrated against CTD data from 7 m depth. For details to all processing steps see Data Processing Report.

Temperature was calibrated independently for both MCs against CTD data from 7 m depth. Value added to temperature data MC1 = 0.000942. Value added to temperature data MC2 = 0.002678.Salinity was calibrated independently for both MCs against CTD data from 7 m depth. Value added to salinity data MC1 = -0.006687. Value added to salinity data MC2 = -0.032736.The salinity samples taken directly from the water inlet and attached to this dataset were not used for calibration.