[Mitgcm-support] Re: lat-lon VI singularity

[mitgcm-support at dev.mitgcm.org]

Alstiar,

 Seems weird to really have to do a line integral.
Hope we aren't going to need a stream function!!

 I will look at your CS note.

Chirs 

Alistair Adcroft wrote:
> Chirs,
>   ^^
> 
> No difference except I need an integral along j=1
> and j=Ny in order to set the vorticity on the poles.
> My point was that the lat-lon grid has a singularity that
> we can't avoid in VI.
> 
> I don't suppose I could ask for a sum_x since
> global_max was so much effort?
> 
> Fortunately I can cast the sum_x as a global_sum so you're lucky!
> 
> A.
> 
> Chris Hill wrote:
> > Alistiar,
> >
> >  Are you sure there is a different singularity
> > for the lat-lon VI. Why isn't it the same as the
> > CS but just for more points?
> >
> > Chris