Simulated sea surface height in the Arctic Ocean, the Northern face of the cube sphere, is displayed for two integrations with different horizontal biharmonic viscosity, 2.4e11 and 5.0e10 m^4/s, respectively. The figure below displays mean and standard deviation for the two integrations. Sea-level anomaly is animated for the high and for the low viscosity integrations. Colorscale in the two movies ranges from -25 to +25 cm.