[MITgcm-support] help to determine the global index

[Ed Hill]

On Fri, 2005-10-14 at 14:52 -0400, Hong Zhang wrote:
> Hi, there
> I have problem trying to determine the global index of (I,J)
> from tile index (i,j,bi,bj).
> My gridding configuration is as follows:
>      &           sNx =  24,
>      &           sNy =  28,
>      &           OLx =   3,
>      &           OLy =   3,
>      &           nSx =   1,
>      &           nSy =   1,
>      &           nPx =   4,
>      &           nPy =   4,
> For example I want to locate the global point (50,76).
> How can I find this point?
> I checked XC and YC, unfortunately they are not consistent with
> global I,J because I use a rotated coordinate system.

Hi Hong,

I've subscribed you to the MITgcm-support list.  And in answer to your
question, theres a nice diagram and explanation of the global/local
indexing scheme in Chapter 4 of the manual:

  http://mitgcm.org/pelican/online_documents/node164.html

Ed

-- 
Edward H. Hill III, PhD
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