[MITgcm-support] eddy transported by mean flow barotropic gyre

[yang.zhang]

Hi, all

I am using MITgcm barotropic gyre  to generate a background mean flow, then
when the flow is stable,  I suddenly add a strong small eddy (with radius
smaller than Rossby deformation radius) by adjusting wind stress at some
time point,

I am expecting to see :
this edyy will be transported by the mean flow and evolves with it.

However, the eddy is just sitting there and distort the local stream for a
while then the flow field restored back to the previous stable state.

I am using a  closed basin , free-slip boundary condition, with the
horizontal diffusion coefficient Ah=0 for the momemtum equation.
500m water depth
256x256 horizontal grid.


Any suggestion ?

Thank you!
yang
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