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20011029: Radar Coded Messages



>From:  Tim Alberta <address@hidden>
>Organization:  UCAR/COMET
>Keywords:  200110300043.f9U0hS105503 Unidata-Wisconsin MDR

Tim,

>Does anyone know why, at 00Z, the radar coded message (MDRadar), instead
>of providing the 00Z image, retransmits the 23Z image?

Small correction: the MDR radar product in the Unidata-Wisconsin datastream
is not created from Radar Coded Messages.

More importantly, I hadn't noticed that the 0Z MDR product is never
being sent.  This will take some investigation on the Unidata-Wisconsin
datastream injection machine.

>And why the real
>00Z image never appears?  I think the 01 and 02Z RCMs are also absent
>most of the time, but what we're really looking for is 00Z.
>
>This is what I see on ldmwatch:
>
>Oct 29 23:06:27...MCIDAS 000  pnga2area Q1 U3 204 GRAPHICS UNKBAND 5km
>20011029 2259
>
>at 2306Z, and 
>
>Oct 30 00:06:15...MCIDAS 000  pnga2area Q1 U3 205 GRAPHICS UNKBAND 5km
>20011029 2259
>
>at 0006Z.
>
>My pqact.conf entry looks like
>
>MCIDAS ^pnga2area Q. (..) (.. )        FILE    -close  /tmp/rawarea.0\2
>MCIDAS ^pnga2area Q. (..) (.. )        EXEC    /pub/ldm/bin2/mvarea1.pl -l
>/tmp/rawarea.0\2
>        
>MCIDAS ^pnga2area Q. (..) (... )       FILE    -close  /tmp/rawarea.\2
>MCIDAS ^pnga2area Q. (..) (... )       EXEC    /pub/ldm/bin2/mvarea1.pl -l
>/tmp/rawarea.\2
>
>and to verify, gif images of the two products (23Z and 00Z) are
>identical. 
>
>Any insight would be appreciated!

The problem is not on the receiving side.  It is on the sending side.
I will try and look into this tomorrow.

Tom
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