[MITgcm-support] EVP stability

[Martin Losch]

Sorry for contributing so late:
there is a flag "SEAICEstressFactor", that you set to 0, and you will  
have no effect of seaice on the wind stress for the ocean for the C- 
grid (the B-grid doesn't have this factor, but as D. points out has  
the stress unaffected by ice by default).

You need to use a very small timestep for evp. Unfortunately I don't  
have any experience with EVP at high resolution, but maybe soon?  
(Dimitris, what deltaTevp do you use for the cs510?)

Martin

On 2 Feb 2007, at 06:14, Dimitris Menemenlis wrote:

>> I am now using C-grid.  For ice-covered areas, how is the wind-stress
>> transferred to the ocean if sea-ice dynamics are off.  Will there  
>> be no
>> wind-stress...or will it go right through?  Do I have any options?
>
> Matt, if you turn off dynamics, everything is computed at cell  
> center.  There is no B or C grid.  I had a quick look and it seems  
> you will have to use "#undef SEAICE_CGRID" if you want wind stress  
> to go through the sea ice.  Otherwise there will be wind stress  
> under ice.
>
> D.
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