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

[yang.zhang]

It is a barotropic case which has only 1 layer


On Wed, Feb 26, 2014 at 4:42 PM, Peng Zhan <peng.zhan at kaust.edu.sa> wrote:

> Hi Yang,
> I suppose that you added the eddy by adjusting the wind stress would only
> affect the surface/ near-surface current, for which the EKE is not high
> enough for propagation. Have you checked how deep is your strong small eddy?
> Peng
>
>
> On Wed, Feb 26, 2014 at 9:47 AM, yang.zhang <yang.zhang at mun.ca> wrote:
>
>> 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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>>
>>
>
>
> --
>
> Peng ZHAN
>
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> Email: *peng.zhan at kaust.edu.sa <peng.zhan at kaust.edu.sa>*
>
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