Spurious diapycnal mixing in z coordinate models

Introduction Diapycnal mixing is a natural process whereby water parcels of different temperature and/or salinity get mixed. ┬áThis process, as opposed to advection, is non-adiabatic (non-reversible) and is governed by diffusive mechanisms. The rate of diapycnal mixing is elevated in coastal waters relative to the open ocean and is responsible for the introduction of nutrients…