•Major changes from
 MICOM
 –New vertical
 coordinate scheme
 –Multiple mixed layer
 models, including non-slab models
 –Interior convection
 due to static instability (two layers exchange fluid when the upper one is more dense)
 –Hydrostatic and momentum equations modified to handle non-isopycnic densities and horizontal density gradients
 –Choice of
 temperature-salinity, temperature-density, or salinity-density advection
 –