[MITgcm-support] circumpolar southern ocean

[helen hill]

In a 1/4 degree circumpolar experiment I run I have the following in my data
file:

# Gridding parameters
 &PARM04
 usingCartesianGrid=.FALSE.,
 usingSphericalPolarGrid=.TRUE.,
 delZ= 200.,
 phiMin=-65.875,
 delY=145*0.25,
 delX=1440*0.25,
 &

If that helps...

Helen

On 3/14/07, Jill N Schwarz <jschwarz at awi-bremerhaven.de> wrote:
>
> Hello all,
>
> Hopefully this is trivial:  i have a 360 x 77 grid (1deg isotropic), with
> phimin=-78.9046,
> thetamin=0.,   also tried thetamin=0.5,
> usingSphericalPolarGrid=.TRUE.,
> and OBCS switched off.
>
> The DELX file consists of all 1s.
>
> Size specifies
>      &           sNx =  90,
>      &           sNy =  77,
> ...
>      &           nPx =   4,
>      &           nPy =   1,
>
> I'd like the longitude to wrap around (0.5 to 359.5 grid cell centres),
> which i understood MITgcm would do automatically.  However, i get a line
> of zero bathymetry along 360E (the final column of my 4th tile looking
> in grid.t004.nc, and also at the northern edge) regardless of whether i
> provide DELX and DELY files the same size as the grid or one cell
> longer.  Otherwise, lat and lon look as expected on the grid.  Is there
> something i need to set to ask MITgcm to close the E-W loop?
>
> Thanks,
> jill.
>
>
>
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