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

[Jean-Michel Campin]

Hi Torge,

I did not see any mention of this addition to pkg/seaice 
in MITgcm/doc/tag-index
Could you add few lines of description there ?
Would have been better to add this in tag-index at the time
of pkg/seaice changes, but it's not too late to fix this.

Cheers,
Jean-Michel

On Sat, Aug 23, 2014 at 04:22:16PM -0400, Torge Martin,,, wrote:
> Update of /u/gcmpack/MITgcm/pkg/seaice
> In directory forge:/tmp/cvs-serv18720
> 
> Modified Files:
> 	SEAICE_OPTIONS.h seaice_diagnostics_init.F seaice_growth.F 
> 	seaice_init_fixed.F seaice_tracer_phys.F 
> Log Message:
> Introducing a new parameterization for grease ice, 
>  i.e. newly formed sea ice in open water:
> 
> What it does:
>  The grease ice parameterization delays formation of solid 
>  sea ice from frazil ice by a time constant and provides a 
>  dynamic calculation of the initial solid sea ice thickness 
>  HO as a function of winds, currents and available grease ice 
>  volume. Grease ice does not significantly reduce heat loss 
>  from the ocean in winter and area covered by grease is thus 
>  handled like open water.
>  (for details see Smedsrud and Martin, 2014, Ann.Glac.)
> 
> How to use:
> - enable SEAICE_GREASE in SEAICE_OPTIONS.h
> - set SItrName(1) = 'grease' in namelist SEAICE_PARM03 in data.seaice
>   then output SItr01 is SItrNameLong(1) = 'grease ice volume fraction',
>   with SItrUnit(1) = '[0-1]', which needs to be multiplied by SIheff
>   to yield grease ice volume. 
> - additionally, the actual grease ice layer thickness 
>   (diagnostic SIgrsLT) can be saved.
> 
> 
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