3. Shallow water model

where

Spatial discretization on a C-grid.

No bottom topography.

Temporal integration using a Rung-Kutta 4th order.

As for our experiments, no steady state was usually reached. All figures are showed for 2196 days of integration ( years). parameters:

• ,
• , single gyre forcing,
• f is defined with the southern boundary at North,
• the length of the basin is .
• km