Underway temperature and salinity data was collected along the cruise track with two autonomous thermosalinograph (TSG) systems, each consisting of a SBE21 TSG together with a SBE38 Thermometer. Both systems worked independent from each other throughout the cruise. While temperature is taken at the water inlet in about 5 m depth, salinity is estimated within the interior TSG from conductivity and interior temperature. Temperature and salinity were calibrated against CTD data from 5 m depth. For details to all processing steps see Data Processing Report.

Temperature was calibrated independently for both TSGs against CTD data from 5 m depth. Value added to temperature data TSG1 = -0.012624. Value added to temperature data TSG2 = -0.007968.Salinity was calibrated independently for both TSGs against CTD data from 5 m depth. Value added to salinity data TSG1 = 0.013159. Value added to salinity data TSG2 = 0.039677.TSG1 was chosen for publication.