20050316: IDV and RegCM

>From: "Thomas L. Mote" <address@hidden>
>Organization: University of Georgia
>Keywords: 200503161507.j2GF7pv2013076 IDV sigma

Hi Tom-

>OK, thanks. I saw this as I was looking through the
>code last night. I thought it did interpolation to pressure
>levels in the post-process, but it clearly doesn't.
>
>It would be handy to be able to look at sigma levels
>in IDV.

We are working on it, but for these files, we would need
to have the information to relate sigma to a vertical
pressure or height coordinate.  The netCDF CF convention
has ways of specifying this:

http://www.cgd.ucar.edu/cms/eaton/cf-metadata/CF-1.0.html#vnum

and that is the path we are taking to support sigma
(and other dimensionless) vertical coordinates at this
point.

Don
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