Sea ice model evolution

The model system consists of the HYbrid Coordinate Ocean Model (HYCOM), the Elastic-Viscous-Plastic (EVP) ice dynamics model coupled to a sea-ice model describing the thermodynamic evolution of the sea-ice cover. In this chapter the model has a grid size ranging from 50 to 80 km in the North Atlantic and Arctic regions. The ocean time step is set to 15 minutes. The simulation uses reanalysed data ERA40 (Uppala et al., 2005) from the European Center for Medium-Range Weather Forecasts (ECMWF). Data used from ERA 40 are temperature at 2 meters, dew-point temperature at 2 meters, wind at 10 meters, cloud cover fraction and precipitation with a temporal resolution of 6 hours.
Several modifications concerning the sea-ice model have been implemented and tested. The results of simulations including those modifications are presented in the following sections.