Ocean – sea ice hindcast of the Arctic with NEMO/Si3 at 12th of a degree: brittle versus viscous–plastic rheology, ocean variables for viscous-plastic run

This 1-year long (Eulerian) twin-experiment (1997) has been performed with NEMO (OCE + SI3) version 4.2.2 at 12th of a degree of horizontal resolution and 75 levels for the 3D ocean. One experiment uses the BBM brittle rheology and the other the default aEVP viscous-plastic one. These simulations are forced with the 1-hourly near-surface atmospheric state of the ERA5 reanalysis (ECMWF). Lateral boundary conditions of the computational domain (northern North Atlantic + Arctic ocean) use monthly-averaged data of the GLORYS2v4 ocean reanalysis (CMEMS).  See Brodeau et al 2024 (https://doi.org/10.5194/gmd-17-6051-2024) for more details about the implementation of the BBM rheology in the sea ice model SI3. The tar file gathers monthly netcdf files that contains daily fields of ocean parameters, the headers are reproduced in the user manual for a complete description.