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20010411: NNEXRAD feed

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  • Subject: 20010411: NNEXRAD feed
  • Date: Wed, 11 Apr 2001 17:43:40 -0600
>From: Tim Alberta <address@hidden>
>Organization: UCAR/COMET
>Keywords: 200104112135.f3BLZnL20960 IDD NNEXRAD GEMPAK

Tim,

>I guess it was the beginning of the year when I tried the NNEXRAD feed
>on our LDM.  Seemed to work fine, I used the ucnids decoder with the
>"-n" option, and could bring images up in garp.  Since the WSI stuff was
>still coming in, I turned NNEXRAD off and promptly forgot about it.  Now
>that the WSI stuff isn't coming through anymore, I can't get the ucnids
>program to give me a displayable image, no matter what option I use.

You do not need to use any decoder since GEMPAK (from Unidata at least) can
display these products directly (as can McIDAS).

>Do you have anything over there I can use to decode these images? 
>Enclosed is a pqact.conf entry from my test LDM, which runs on my HP.

>NNEXRAD        ^SDUS5. .... ([0-3][0-9])([0-2][0-9])([0-5][0-9]).*/p(...)(...)
>       PIPE    -close  /home/comet/alberta/bin/ucnids -n -
>/met/rt/images/radar/nids/\5/\4/\4_(\1:yy)(\1:mm)\1_\2\3

Here is the action we use to file the NNEXRAD products:

NNEXRAD  ^SDUS5. .... ([0-3][0-9])([0-2][0-9])([0-6][0-9]).*/p(...)(...)
        FILE    -close  data/gempak/nexrad/NIDS/\6/\5/\5_(\2:yyyy)(\2:mm)\2_\3\4

Tom Yoksas