NEMO-Nordic 3.3.1 for RCA4-NEMO

NEMO 3.3.1 based ice-ocean component of the coupled atmosphere-ice-ocean model RCA4-NEMO. This ocean model setup has been know as BaltiX and was renamed NEMO-Nordic later on. It uses NEMO 3.3.1 with some changes and is set up for the North Sea and Baltic Sea. The horizontal resolution is 2 nautical miles and 56 levels with 3 m near the surface increasing to 10 m at 100 m. This setup uses LIM 3 with 5 ice classes as an ice model