Spatial Discretization ====================== The model equations are the layer-integrated vector-invariant form of the hydrostatic primitive equations (either Boussinesq or non-Boussinesq). We present the equations starting from the hydrostatic Boussinesq equation in height coordinates and progress through vector-invariant and general-coordinate equations to the final equations used in the A.L.E. algorithm. .. toctree:: :maxdepth: 2 api/generated/pages/Discrete_Grids api/generated/pages/Finite_Difference_Operators api/generated/pages/PPM api/generated/pages/Discrete_Coriolis api/generated/pages/Discrete_PG api/generated/pages/Energetic_Consistency api/generated/pages/Discrete_OBC