Fundamental

▶ The MOM4 is a numerical ocean model based on the hydrostatic primitive equations.The MOM4 is configured with 50 vertical levels (22 levels of 10-m thickness in the top 220m), 1 ° longitude by 1° latitudinal spacing near the equator. The model has an explicit surface with freshwater fluxes exchanged between the atmosphere and ocean [S. Zhang et al. 2010].

▶ Parameterized physical processes include K-profile parameterization (KPP) vertical mixing,neutral physics, a spatially dependent anisotropic viscosity, and a shortwave radiative penetration depth that depends on a prescribed climatological ocean color. Insolation varies diurnally and the wind stress at the ocean surface is computed using the velocity of the wind relative to surface currents. An efficient time stepping scheme is employed [Griffies et al. 2005].