Figure 1: Vertical model structure with bottom topography confined to the deepest layer.
For instance,
One-dimensional models:
･ Unstratified river and channel models
･ Stratified mixed layer model (Single Column Model)
Two-dimensional models:
･ Barotropic coastal model
･ Reduced gravity model (one active layer)
･ Stratified channel flow
Three-dimensional models :
･ Upper layer ocean model
･ Finite depth model
where temperature, salinity and other tracers can be included as needed.
NUMERICAL MODEL
The hydrodynamical equations are based on the multi-layer model by Jensen (1991; 1993), but modified to include bottom topography (Jensen, 1996) and prognostic scalar variables such as temperature and salinity. Layer depths may also vary in time and space. Figure 1 shows the model structure in the vertical: At the upper ocean are a number of variable density layers to simulate air-sea interactions. Below, a number of intermediate depth layers may be kept isopycnal above an abyss of finite or infinite depth. When the latter approximation is made, the fast barotropic mode is removed.
