The UCTD is a CTD system that can be deployed from a moving ship, allowing for the sampling of water masses at high horizontal resolution (ranging from less than 1 km for the Rapidcast system to 10 km for deep UCTD casts) with good accuracy of the pressure, temperature, and conductivity sensors. Processing of the data involved mostly the fall-rate dependent correction of the thermal lag of the conductivity sensor and followed the approach described by Ullman and David (2014). Subsequently the corrected data was calibrated against the calibrated coincident Thermosalinograph and the calibrated nearby CTD data.

Version = PO-GLOBAL-SVN = 601Matlab = 9.4.0.813654 (R2018a)Release = 2nc_comment = Two UCTD probes were used during the cruise. One of them (SN 68) had a faulty conductivity sensor. All that data has been set to NaN.P-correction = 0.213548+p*-0.000260 dbarT-correction = 0.00 deg CS-correction = 0 PSU