[MITgcm-devel] heff_max...more sea ice issues

[Jinlun Zhang]

Dimitris,

LSR solver is semi- implicit so one can use large time step for 
dynamics. The solution of conserv. eq's is explicit, we have to use 
smaller time step to meet cfl criterion.

Jinlun

Dimitris Menemenlis wrote:

> Hi Jinlun, what do you mean by "relatively longer time step" and by 
> "smaller time step" in your reply to Matt?
>
>> The ice dynamics solver is implicit, so you can use relatively longer 
>> time
>> step, but better use LSR_ERROR=1e-4. The solution of conservation 
>> equations
>> that I put in is constrained by time step, so you might want to use 
>> smaller
>> time step if you use the original solution.
>
>
> Matt, I take back what I said in previous e-mail.  I "have" tried 
> higher resolution sea-ice model, at 1/8 and 1/16th global.  That was 
> some time ago.  I did not look at sea ice output in detail but it did 
> not blow up.  Formulation for these two integrations was the older 
> B-grid, ocean decoupled from ice.
>
> Dimitris
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