Underway temperature and salinity data was collected along the cruise track with two autonomous measurement systems. Usually, the systems are changed after 6 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. Salinity was calibrated independently for both measurement containers (MCs) with water samples taken and measured throughout the cruise. The measured water sample data are attached as file and part of the data as well. Temperature was calibrated with CTD data from this cruise. For details to all processing steps see Data Processing Report.

Salinity Offset MC1 = -0.000357 Salinity Offset MC2 = -0.018538Temperature Offset SBE38(MC1) = -0.005983 °C Temperature Offset SBE38(MC2) = -0.001786 °C