[MITgcm-devel] obcs_seaice_sponge.F

[Jean-Michel Campin]

Dimitris,

I think there are several issues, and the simplest way to fix
theses would just involve to  re-writte it in similar form as rbcs
(a 2-D mask + a 2-D/3-D field value to relax towards, both beeing exchanged), 
with this relaxation field set-up from the OBCS fields.

Now, it looks like my changes from yesterday are breaking the multi-threaded
tests. Will try to fix this soon, but might be better to wait until this
is fixed before make new check-in in obcs related code and experiments.

Jean-Michel

On Wed, Sep 19, 2012 at 02:38:34PM +0000, Menemenlis, Dimitris (3248) wrote:
> Jean-Michel, what are the issues of ALLOW_OBCS_SPONGE ?
> 
> Dimitris Menemenlis
> 
> On Sep 19, 2012, at 7:33 AM, Jean-Michel Campin wrote:
> 
> > Hi Dimitris,
> > 
> > Just a comment regarding ALLOW_OBCS_SPONGE : it's no longer really 
> > maintained, and generally we advise users to switch to pkg/rbcs.
> > Now with this new feature for obcs+seaice, what should I tell to new
> > users ? Is there a plan to work on fixing the few issues of 
> > the non seaice ALLOW_OBCS_SPONGE ?
> > 
> > Cheers,
> > Jean-Michel
> > 
> > On Wed, Sep 19, 2012 at 06:11:59AM +0000, Menemenlis, Dimitris (3248) wrote:
> >> Dear pkg/seaice obcs users, I have been experimenting with obcs_seaice_sponge.F,
> >> a series of subroutines similar to those in obcs_sponge.F but for sea ice variables.
> >> They are meant to take care of polynyas that are created along open boundaries
> >> when there is divergent ice flow due to coarse-res time-averaged sea ice obcs
> >> applied to hi-res grids and/or atmospheric forcing.
> >> I have updated obcs_seaice_sponge.F to be consistent with latest changes
> >> to pkg/obcs and will check in main repository tomorrow along with a small
> >> test in verification/seaice_obcs.
> >> 
> >> Michael and Renske, it would be great if you can take obcs_seaice_sponge.F for a spin
> >> with your respective hi-res regional domains to see if it helps attenuate ice boundary artifacts.
> >> 
> >> Thanks
> >> 
> >> Dimitris Menemenlis
> >> 
> >> 
> >> _______________________________________________
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> >> MITgcm-devel at mitgcm.org
> >> http://mitgcm.org/mailman/listinfo/mitgcm-devel
> > 
> 
> 
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