The Equation Sets
Shallow atmosphere assumption for all sets
- Full [ie. compressible, nonhydrostatic]
- Hydrostatic [w-equation replaced by ]
- Anelastic [neglect density variations and linearise thermodynamics terms]:
- Durran’s (1989) Pseudo-incompressible [?-equation replaced by ?.(?b?bu)=0]
- Others [?-equation replaced by ?.(?bu)=0 with various flavours of the thermodynamic linearization. Boussinesq sets ?b=constant]