[MITgcm-support] Rotated axes
ed at eh3.com
Tue Jan 31 09:59:23 EST 2006
On Tue, 2006-01-31 at 08:25 -0600, Pat Gallacher wrote:
> Can the x-y axes for MITgcm be rotated with respect to latitude and
> longitude? I haven't found anything about this in the documentation.
Yes, coordinates certainly can be rotated although its not a very common
configuration and it may, depending on the way you intend to do it,
require a slight change in the model to get the Coriolis terms computed
correctly. This can be done in:
which is a very straight-forward subroutine.
Also, in MITgcm, grids can be much more than simple lat-lon or Cartesian
coordinate systems--they can be general curvilinear coordinates which
allow a lot of flexibility in the placement of model resolution. There
is a description of the various grid options in the manual starting at:
And, if you describe the scenario that you're trying to model, we can
help steer you towards appropriate grid options.
Edward H. Hill III, PhD
office: MIT Dept. of EAPS; Rm 54-1424; 77 Massachusetts Ave.
Cambridge, MA 02139-4307
emails: eh3 at mit.edu ed at eh3.com
URLs: http://web.mit.edu/eh3/ http://eh3.com/
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