The domain is a periodic channel, 320 km long and 320 km wide. The channel
walls are solid (no normal flow) with free-slip viscous boundary conditions.
The channel has a far-field depth 
and in the center
includes an isolated Gaussian-shape seamount with a width L and an amplitude
(Figure 2),
where (
) are the longitude and latitude of the seamount center.
The far-field depth (
is fixed as 5,000 m. But the seamount
amplitude (
changes from 500 to 4,500 m, and the lateral scale of the
seamount (L) varies from 10 to 40 km. for the study.