[MITgcm-support] circumpolar southern ocean

[Jill N Schwarz]

Thanks Helen,

That alerted me to the actual problem, which was... my bathymetry 
interpolation... bad dobby!

Cheers,
jill.

helen hill wrote:

> 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 
> <mailto: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 <http://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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