Temperature data from moorings in the Vilkitsky Strait, Arctic Ocean

During cruise 78 of the R/V “Akademik Mstislav Keldysh” three moorings were deployed in the Vilkitsky Strait from September 24 to October 14, 2019. Two moorings were located near the coast in the southern part of the Vilkitsky Strait at a depth of ~50 m (V1, V2 ). The third station was located in the central part of the strait (V3) at a depth of ~220 m. The distance between moorings according to the measured coordinates was as follows: 0.46 km between V1-V2, 29.8 km between V2-V3, 29.7 km between V1-V3. The moorings were equipped with underwater temperature (Starmon mini and DST centi-T produced by Star-Oddi) and temperature-pressure (DST centi-TD produced by Star-Oddi) loggers. The accuracy of temperature sensors is +/-0.025°C (Starmon mini) and ±0.1°C (DST), the accuracy of pressure sensors is ±0.6 % of the pressure range (100/500 m). The time step was 10 s for the DST centi-T temperature loggers and 10 min for the DST centi-TD and Starmon mini loggers. All sensors were started at 23:00 MSK (Moscow time, i.e., UTC+3 hours) on 24.09.2019. The dataset also includes one station with CTD. The vertical CTD was deployed with the SBE 911plus instrument during the recovery of mooring V3. The dataset could be used to analyse the vertical temperature structure during autumn cooling processes and to study internal waves.