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Next: 7.5.1 Using SPGrid
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7.5 Grid Generation
The horizontal discretizations within MITgcm have been written to work
with many different grid types including:
- cartesian coordinates
- spherical polar (``latitude-longitude'') coordinates
- general curvilinear orthogonal coordinates
The last of these, especially when combined with the domain
decomposition capabilities of MITgcm, allows a great degree of grid
flexibility. To date, general curvilinear orthogonal coordinates have
been used primarily (in fact, almost exclusively) in conjunction with
so-called ``cube-sphere'' grids. However, it is important to observe
that cube-sphere arrangements are only one example of what is possible
with domain-decomposed logically rectangular regions each containing
curvilinear orthogonal coordinate systems. Much more sophisticated
domains can be imagined and constructed.
In order to explore the possibilities of domain-decomposed curvilinear
orthogonal coordinate systems, a suite of grid generation software
called ``SPGrid'' (for SPherical Gridding) has been developed. SPGrid
is a relatively new facility and papers detailing its algorithms are
in preparation. Althogh SPGrid is new and rapidly developing, it has
already demonstrated the ability to generate some useful and
interesting grids.
This section provides a very brief introduction to SPGrid and shows
some early results. For further information, please contact the
MITgcm support list at:
MITgcm-support@mitgcm.org
Subsections
Next: 7.5.1 Using SPGrid
Up: 7. Diagnostics and I/O
Previous: 7.4.2 Using Monitor
Contents
mitgcm-support@mitgcm.org
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Massachusetts Institute of Technology |
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