[MITgcm-support] circumpolar southern ocean

[Jill N Schwarz]

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.