[MITgcm-devel] seaice

[Martin Losch]

Hi Dimitris,

if there are plans to clean up the grid parameters, I might start  
doing that (instead of watching television at home (o:), if it is  
okay with you. I'll make sure that the lab_sea experiment does not  
break (if that's sufficient for your cubed sphere experiment, or  
would you rather have a cubed sphere configuration two? I have one,  
basically verification/global_cs.32x15 + seaice instead of thice.).

Just to pass the thought to the list: I talked to Ralph about B vs. C- 
grid for the seaice model and he thinks that this is completely  
unproblematic. On the contrary, the fluxes are no problem and the  
averaging of velocities for stresses may even be a benefit  
(smoothing). I don't know what other people think.

Martin
On Feb 13, 2006, at 3:37 PM, Dimitris Menemenlis wrote:

> Martin, I am attaching a draft wish list for MITgcm sea-ice code  
> for you and others to consider and modify.  The list is based on  
> your recent e-mails and work on ice shelves as well as on  
> discussions with Jean-Michel and Patrick during ECCO meeting two  
> weeks ago and with Elizabeth Hunke and Bill Lipscomb at NCAR last  
> week.  I am not sure when these things will happen and in what  
> order.  I am presently trying to hire someone that can help move  
> the MITgcm sea-ice code forward.  Timing also depends on Jinlun's  
> timetable and availability.
>
> 1. Clean-up grid parameters as you suggest.  Make sure that there  
> are no duplicate or repeated computations.  Use model/inc/GRID.h  
> parameters where possible, define the rest in pkg/seaice/ 
> SEAICE_GRID.h and seaice_init.F.
>
> 2. Adapt LSR solver for curvilinear coordinates so that it is  
> "properly" compatible with cubed-sphere and terraced grids.
>
> 3. Port LSR solver to C-grid.  This is something that Jinlun is  
> working on for GISS, and he may be able to spend two months next  
> year to implement on MITgcm.
>
> 4. Better coupling of pkg/seaice thermodynamics with surface level,  
> similar to what Jean-Michel has done for pkg/thsice.
>
> 5. Coupling of pkg/thsice thermodynamics with pkg/seaice dynamics.
>
> 6. Ice shelves and cavern representation.
>
> 7. Import more modern, multi-category sea-ice model.  The plan is  
> to import the Los Alamos CICE sea ice model (http:// 
> climate.lanl.gov/Models/CICE/), ideally with interchangeable  
> dynamics between Jinlun's LSR VP solver and Elizabeth's explicit  
> EVP solver.
>
> Dimitris
>
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