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[ldmMcidas #XGX-360555]: decoding FNEXRAD 1 km N0R composite images

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  • Subject: [ldmMcidas #XGX-360555]: decoding FNEXRAD 1 km N0R composite images
  • Date: Tue, 31 Jul 2007 12:04:58 -0600
Hi Elmer,

First, I apologize if you got multiple responses on receipt of your email.
I was moving the request into a different department, and got a couple of
hiccups from the system.

re:
> I have been trying to decode a file from a command line based on what I
> can find on your web site.
> 
> The command I entered was:
> /home/ldm/ldm-mcidas-7.6.4/bin/pnga2area -vxl- -f
> /data/ldm/radar/1km/n0r/n0r_20070731_1647 -d /home/ldm 8000
> and I get:
> Jul 31 16:54:21 pnga2area[24531]: Starting Up
> Jul 31 16:54:21 pnga2area[24531]: Input fails word 0 AREA test
> 
> 
> Does this mean the data I am getting isn't png compressed?

No.  The 1 km N0R composite in the FNEXRAD feed is a PNG-compressed GINI
image, not a PNG-compressed AREA image.  Instead of 'pnga2area' you should
be using the LDM-McIDAS decoder 'pngg2gini'.

Cheers,

Tom
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Ticket Details
===================
Ticket ID: XGX-360555
Department: Support ldm-mcidas
Priority: Normal
Status: Closed