Re: [ferret_users] coordinate variable as a variable

[Arindam Chakraborty <arch@xxxxxxxxxxxxxx>]

hi Bob,
	if you want only the variable lat to be used in ferret, 
it may not be required to use another file. You can create a variable 
called lat in ferret:
...
let lat = y[gy=variable_in_the_file]

where lat will be of 1D containing the y-coordinate 
variable values of the variable_in_the_file.

If you want a 2D lat, which has the same value along x (and other 
dimensions of the file variable), you may use:

let lat2d = variable_in_the_file*0 + lat


Hope this helps.

arindam
----------------------------
 ARINDAM CHAKRABORTY
 Department of Meteorology
 Florida State University
 Tallahassee, FL-32306, USA
 Tel: +001-850-6443524 (Off)
      +001-850-5758550 (Res)
 Fax: +001-850-6449642
____________________________

On Thu, 26 Jan 2006, Bob Tomas wrote:

> Hello
> 
> I have a netCDF file with a coordinate variable, latitude, that I'd
> like to use in ferret.
> 
> I create the file using:
> 
> 	ncks -v lat file_in.nc -o lat_file.nc
> 
> and ncdump -h shows latitude listed as a variable.  However,
> if I use lat_file.nc in ferret, and show data, latitude
> doesn't show up.  I am guessing that it is being treated differently
> because it is a coordinate variable.   Is there a work around for
> this?
> 
> Thanks
> 
> Bob
> 
> -------------------------------------------------------------
> Robert A. Tomas
> National Center for Atmospheric Research
> Climate and Global Dynamics Division - Paleoclimatology
> 1850 Table Mesa Drive
> Boulder, CO 80305-3000
> e-mail: tomas@ucar.edu  tel: 303-497-1342  fax:  303-497-1348
>