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Abstract:
Ocean microstructure measurements were obtained from a Rockland Scientific (RSI) MicroRider (MR, serial number 324) attached to an electric Slocum glider. The glider Odin is a 1000-m electric Teledyne Webb Slocum glider (G3, serial number 775). The glider was operated close to the marginal ice zone, west of Spitsbergen, during the ATWAICE cruise on board Polarstern (PS131) in July 2022.
The glider mission started on 6 July 2022 and ended on 2 August 2022. In addition to the turbulence package, the glider was equipped with a pumped Seabird conductivity-temperature (CTD) sensor. Both the CTD and the MR were configured to sample during dives and climbs of the glider.
The dissipation rate was measured using two airfoil shear probes. The dataset has been processed and formatted in accordance with the SCOR Working Group ATOMIX guidelines and recommendations.
This set of two NetCDF (NC) files are constructed from the individual NC files per instrument's native file, which are provided separately (one file between consecutive surfacings of the glider, 208 files in total). MERGED_SLOW is the collection of time series from selected sensors, also including flight parameters, averaged in 1-second windows. MERGED_EPSI is the collection of time series of dissipation rate estimates together with quality control parameters. 636 sections from the 208 files are concatenated. A section is a continuous segment of the time series with dissipation estimates, for example separate sections from the dive and climb parts of the time series. When producing the merged files, only good data are used (i.e., quality flags are applied). Users interested in the concatenated dissipation profiles and 1-second time-averaged sensor data can use these files and avoid downloading the full records of the individual NC files.
Note that the data in the concatenated files are not gridded in time or pressure. Each data point has its own time stamp and pressure value. For more detailed information, please refer to the comments within the data file.