Re: equal area projection

This sounds similar to a grid used by ISCCP (see http://isccp.giss.nasa.gov/docs/mapgridinfo.html)
. NCL can plot this sort of grid directly using the triangular mesh
method if you simply pass in the data and lat/lon locations as 1D
arrays. I am attaching some sample ISCCP data and an NCL script that
plots it. It does reveal a limitation with the plotting method: on a
global Cylindrical Equidistant projection the edges do not fill out
completely at the corners and the poles. It looks better in an
orthographic projection.
  -dave

You will need to modify the script a bit to get it to read the file in
the current directory and plot to your preferred workstation.
  -dave

On Mar 23, 2010, at 12:05 PM, Lei Meng wrote

> Hi,
> I was wondering if there is a way in NCL to plot global data with
> equal area spatial resolution (i.e., equal area grid of 0.25 degree
> by 0.25 degree at the equator). The data has more grid cells near
> equator and less grid cells in high latitude. Any suggestions would
> be appreciated.
> Lei _______________________________________________
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