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Re: 20050122: netCDF Decoders - decoders returns incorrect Lo1 for GRID #236

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  • Subject: Re: 20050122: netCDF Decoders - decoders returns incorrect Lo1 for GRID #236
  • Date: Mon, 24 Jan 2005 12:42:05 -0700 (MST)
On Sat, 22 Jan 2005, Unidata Support wrote:

>
> ------- Forwarded Message
>
> >To: address@hidden
> >From: "John Meyers" <address@hidden>
> >Subject: netCDF Decoders - decoders returns incorrect Lo1 for GRID #236
> >Organization: Museum of Science
> >Keywords: 200501220535.j0M5ZPrT026996 netCDF decoders gribtonc
>
> Institution: Museum of Science, Boston MA
> Package Version: decoders-3.0.7
> Operating System: Fedora Core2
> Hardware Information: Althlon XP
> Inquiry: We are having some nasty trouble decoding the RUC 20km data from
the CONDUIT feed into netCDF format.  Lo1 for grid #236 is supposed to be
126.138, yet gribdump/gribtonc/gribtocdl is returning it as 233.862.
This odd value is also included in the supplied ruc2_236.cdl.  I can not find
this matching any other grid, nor can I force decoders to use the proper value
for #236.  Can someone shed some light on this?


john,

actually 233.862 is the correct value going east. the 126.138 is missing a
negative sign because that's the value going west. ie

360 - 233.862 = 126.138

i would mention this to the place where you got the 126.138 value so it
can be corrected.

robb...


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===============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
===============================================================================