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Re: FNEXRAD product question

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  • Subject: Re: FNEXRAD product question
  • Date: 06 Apr 2005 13:29:40 -0600
John,

No, you don't need 2 copies. Also, since GEMPAK can read the product
in its compressed PNG format, I provide the action to just file the
product. I provide a single pqact.conf action for GEMPAK distributions
(as pqact.gempak_nexrad in $NAWIPS/ldm/etc/templates/ which you can add
to your pqact.conf file, or run a separate pqact process per .conf 
file).

If you want McIDAS to use the product, you will be uncompressing it
using the ldm-mcidas decoder pngg2gini which converts the PNG
portion to the standard GINI raster.

GEMPAK can read either. 

Steve Chiswell
Unidata User Support




On Wed, 2005-04-06 at 13:14, John Hobbie wrote:
> Hi --
> 
> The other day I noticed that the pqact.conf file processes the FNEXRAD 
> product 
>       ^rad/NEXRCOMP/(...)/(...)_(........)_(....)
> twice.  LDM puts one copy in  data/gempak/images/sat/NEXRCOMP/1k/.......
> and puts a second copy of the data in  data/gempak/nport/RADAR/........
> according to the standard pqact.conf configuration.   It appears that in the 
> second instance, it is being processed by a McIDAS decoder.  Thus two copies 
> of the images are being saved.
> 
> Gempak/GARP by default uses the data found in the first location.
> 
> Just for laughs, I modified the Garp_defaults file to point to the second 
> location.  GARP wouldn't work if I placed the path under an image type; I 
> tried G8.  But it worked great when I placed the path under the "nowrad" data 
> type.  
> 
> So, do we really need two copies of these data?
> 
> 
> John Hobbie
> National Scientific Balloon Facility
> Palestine, Texas