[MITgcm-devel] [MITgcm-cvs] MITgcm/pkg/seaice CVS Commit

[Jean-Michel Campin]

Hi Martin,

It seems that the changes you made are responsible for 8 more 
recomputation warnings in 3 tested experiments:
 global_ocean.cs32x15, lab_sea and offline_exf_seaice
Do you know if they are all benign ? or if some of them
imply significant recomputation ?

Cheers,
Jean-Michel

On Tue, Sep 08, 2015 at 05:42:08AM -0400, Martin Losch wrote:
> Update of /u/gcmpack/MITgcm/pkg/seaice
> In directory forge:/tmp/cvs-serv26984/pkg/seaice
> 
> Modified Files:
> 	seaice_calc_lhs.F seaice_calc_rhs.F seaice_dynsolver.F 
> 	seaice_evp.F seaice_lsr.F seaice_preconditioner.F 
> Log Message:
> introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
>   - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
>     by AREA according to Connelly et al. (2004), JPO.
>   - For EVP and the LSR solver, the implicit part of the drag term is 
>     the only non-zero term in the denominator when there is no ice
>     (which prevented running the model with zero drag). If
>     SEAICEscaleSurfStress = .TRUE., this results in a division by zero
>     (or zero main diagonals BU/BV) which needs to be caught. A practical
>     consequence is that, for open water, the momentum equation reduce
>     to trivially 0 = 0 + 0.
> 
> 
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