Ocean velocity data from a vessel-mounted acoustic Doppler current profiler from a day-long ice-drift station during the PS131 expedition with RV Polarstern in July 2022

This dataset is a subset from the underway ocean current profiler data during the scientific cruise PS131 on RV Polarstern to the northern Fram Strait/Yermak Plateau region. The subset was compiled for fulfilling the data availability requirements of a manuscript submission. The full processed dataset of the underway current measurements will be published on PANGAEA (https://www.pangaea.de/?q=ps131) in due time. The data were collected using a 150 kHz Ocean Surveyor ADCP from Teledyne RDI (USA), mounted in the ship's hull at 11 m below the sea surface. The instrument was configured in narrowband mode and set up to use a 4 m bin size, covering a range from 15 m to about 200–300 m depending on sea state, ice conditions, ship’s speed, and backscatter intensity. This data subset covers 24 h and a depth to 250 m. The data were collected as part of a sea ice-based process study, during which the ship was drifting next to a sea ice floe. Data processing was done using the OSSI toolbox developed by GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel and included a correction of the misalignment angle (0.8015°) and amplitude factor (1.014001) of the Ocean Surveyor signal. An averaging interval of 60 seconds was used. The drift trajectory, based on the ship's navigation system, is included as latitude and longitude data. The data provided here has variables u and v (eastward and northward velocity components), depth, and time, as well as lon (longitude) and lat (latitude). More information can be found in the cruise report: https://doi.org/10.57738/BzPM_0770_2023.