[gradsusr] ctl file for curvillinear data

[Roberto Mera]

Thanks for the help. It's been quite difficult and I'm trying some 
work-arounds. Can any of this be done with CDO?

Robert

That message from the archive still holds true. However, there is some stand-alone code from the ESMF group that may be useful for providing the interpolation points for converting a curvilinear (or other) grid to a rectilinear lat/lon grid that GrADS can handle. It takes two netcdf files as args, and outputs a third that could be used to create a GrADS PDEF file. I plan to take a look and see if it could be useful, but haven't had a chance yet. Just another option to try...
--Jennifer



----- Original Message -----
From: "James T. Potemra"<jimp at hawaii.edu>
To: "GrADS Users Forum"<gradsusr at gradsusr.org>
Sent: Wednesday, May 18, 2011 6:01:51 PM
Subject: Re: [gradsusr] ctl file for curvillinear data

Just a follow-up; from the GrADS archive:
http://gradsusr.org/pipermail/gradsusr/2011-March/012841.html

On 5/18/11 11:46 AM, Roberto Mera wrote:

> >  Users,
> >
> >  I've been working with data from the regCPDN project:
> >  http://climateprediction.net/weatherathome/western_us
> >  This data is in curvillinear coordinates and when I run cdo griddes I get:
> >
> >  gridtype  = curvilinear
> >  gridsize  = 12870
> >  xname     = global_longitude0
> >  xlongname = longitude
> >  xunits    = degrees_east
> >  yname     = global_latitude0
> >  ylongname = latitude
> >  yunits    = degrees_north
> >  xsize     = 110
> >  ysize     = 117
> >
> >  The grid is specific numbers for each lat,lon (i,j). It's a 24km grid at
> >  0.22 deg in its native coordinate system. Using XDEF in either levels or
> >  linear distorts the image. How can I approach this with the PDEF function?
> >
> >  I'm running grads version v2.0.a9.oga.1 little-endian readline printim
> >  grib2 netcdf hdf4-sds hdf5 opendap-grids,stn athena geotiff shapefile
> >
> >  Thanks,
> >
> >  Robert
> >  _______________________________________________
> >  gradsusr mailing list
> >  gradsusr at gradsusr.org
> >  http://gradsusr.org/mailman/listinfo/gradsusr
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