Underway temperature and salinity data was collected along the cruise track with two autonomous measurement systems. Usually, the systems are changed after a couple of hours. At the beginning of this cruise the systems changed after three hours. Later mostly one system was working while the second just worked a few hours per day. 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. No correction against independent data was performed for temperature and salinity. For details to all processing steps see Data Processing Report.