Re: NCL southern hemisphere bug

Hi Zach,

I ran your script, and the lat/lon arrays that define the area for
your data are going from:

      Lat: -55.6723 to -42.0324
      Lon: 115.609 to 136.581

This is exactly where NCL is placing your plot, so this looks correct
to me.

The plotting area in the GEMPAK map is more around:

      Lat: -45 to -32
      Lon: 135 to 153

Perhaps the lat/lon locations that you are giving to GEMPAK
are different that what you are using in the NCL script?

To see where the lat2d/lon2d locations are, I added this
after your call to gsn_csm_contour_map:

   draw(plot)
   gsn_polymarker(wks,plot,ndtooned(lon2d),ndtooned(lat2d),False)
   frame(wks)

--Mary

On Mon, 7 Jan 2008, Zachary DuFran wrote:

> NCL help-
>
>
>
> I have plotted WRF GRIB-1 output from a southern hemisphere run with NCL
> (version 5.0.0) and found the data to be plotted in the wrong location.
> The data should be centered on Melbourne, Australia (lat=-38.45,
> lon=144.83), but is located farther SW of that location. The same
> GRIB-1 file plots correctly with GEMPAK.
>
>
>
> I have attached the GRIB-1 file and NCL script, as well as screenshots
> from NCL and GEMPAK.
>
>
>
> Thanks for your help-
>
> Zach DuFran
> Meteorologist / Developer
> Weather Decision Technologies Inc <http://www.wdtinc.com/> .
> 3100 Monitor Avenue, Suite 280
> Norman, OK 73072
> 405.579.7675 x 249
> 405.517.1112 cell
>
>
>
>
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Received on Mon Jan 07 2008 - 14:41:56 MST