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Re: 20000704: RCM script produces no echoes

Steve -

I changed the pqact.conf pattern action to your suggested form yesterday
morning.  Since that time, the images have been showing echoes 100% of the
time.  Thanks.

Chris


On Wed, 5 Jul 2000, Unidata Support wrote:

> 
> Chris,
> 
> The problem likely stems from the pqact.conf pattern action that is being 
> used to
> store the data in the rcm file. The best pattern would use the /pRCM tag to
> ensure all the observations in the file are RCM's...at the time I created the
> www page, not all of our top level NOAAPORT ingestors were adding the pil tag,
> so I couldn't use that. Now,  I see that several FTM messages are in that
> group. I would suggest:
> 
> HDS     ^SDUS4[0-6] .... ([0-3][0-9])([0-2][0-9])([0-5][0-9]).*/pRCM
> 
> 
> The actual problem is that my loop exits at the first bulletin that is not a 
> RCM.
> I should be more lenient.
> 
> This can be corrected in $NAWIPS/unidata/programs/gprcm/rcm.c by changing
> the while loop to a while and if loop starting line ~783:
> 
>    while((get_nextbull(fp,bultin,&lenbul) == 0)&&(isrcm(bultin,lenbul) == 0))
>       {
>       NEXINDX = get_ndex(bultin,lenbul);
>       if(NEXINDX >= 0)
>          {
>          clat = RADARS[NEXINDX].stnlat; clon = RADARS[NEXINDX].stnlon;
>          
> read_nexaa(bultin,lenbul,RADARS,NEXINDX,&new_time,trange,&mode,&valid);
>          if(mode > MDNA) RADARS[NEXINDX].mode = mode;
>          if((valid == 0)&&(mode > MDNE)) /* should only do precip and clear 
> air */
>             read_nexcc(bultin,lenbul,RADARS,NEXINDX,&new_time,trange);
>          }
>       }
> 
> 
> to:
> 
>    while(get_nextbull(fp,bultin,&lenbul) == 0)
>       {
>       if(isrcm(bultin,lenbul) == 0)
>          {
>          NEXINDX = get_ndex(bultin,lenbul);
>          if(NEXINDX >= 0)
>             {
>             clat = RADARS[NEXINDX].stnlat; clon = RADARS[NEXINDX].stnlon;
>             
> read_nexaa(bultin,lenbul,RADARS,NEXINDX,&new_time,trange,&mode,&valid);
>             if(mode > MDNA) RADARS[NEXINDX].mode = mode;
>             if((valid == 0)&&(mode > MDNE)) /* should only do precip and 
> clear air */
>                read_nexcc(bultin,lenbul,RADARS,NEXINDX,&new_time,trange);
>             }
>          }
>       }
> 
> If you make this change, simply recompile with:
> 
> cd $NAWIPS/unidata/programs/gprcm
> make clean
> make all
> make install
> make clean
> 
> Let me know what you find.
> 
> Steve Chiswell
> Unidata User Support
> 
> 
> >From: address@hidden (Chris Hennon)
> >Organization: UCAR/Unidata
> >Keywords: 200007041641.e64Gf5T01802
> 
> >Steve -
> >
> >I have a csh script which produces a RCM image.  I run it from the cron at
> >00 and 30 past the hour, 24 hours a day.  50% of the time it runs
> >flawlessly, 50% of the time it completes successfully but creates a map
> >with no echoes on it.  The log file looks exactly the same, whether it
> >produces echoes or not:
> >
> > Parameters requested:
> >MAP,GAREA,PROJ,SATFIL,RADFIL,LATLON,PANEL,TITLE,TEXT,
> >
> >CLEAR,DEVICE,RCMFIL,RADTIM,RADDUR,DITHER,MESO,TVS,CNTR,MAXTOP,RADINFO,ECHO,
> > CLRBAR.
> > GEMPAK-GPRCM> GEMPAK-GPRCM> GEMPAK-GPRCM> GEMPAK-GPRCM> GEMPAK-GPRCM>
> >GEMPAK-GPRCM> GEMPAK-GPRCM>
> >GEMPAK-GPRCM> GEMPAK-GPRCM> GEMPAK-GPRCM> GEMPAK-GPRCM> GEMPAK-GPRCM>
> >GEMPAK-GPRCM> GEMPAK-GPRCM> G
> >EMPAK-GPRCM> GEMPAK-GPRCM> GEMPAK-GPRCM> GEMPAK-GPRCM> GEMPAK-GPRCM>
> >GEMPAK-GPRCM> GEMPAK-GPRCM> GE
> >MPAK-GPRCM> GEMPAK-GPRCM> GPMAP PARAMETERS:
> >
> > Device:              gf|/usr/local/apache/htdocs/rcm/national.gif
> > Projection:          STR/90.0;-95.0;0.0
> > Graphics area name:  17.89;-116.2;50.0;-59.3
> > Map:                 4
> > Title:               31/+1/Radar Summary (dbz) - echo tops (x100 ft)
> >000704/1630
> > Panel:               0
> > Latlon:              0
> > Clear:               YES
> >Enter <cr> to accept parameters or type EXIT:EAX Meso01 LLF
> > Parameters requested:
> >MAP,GAREA,PROJ,SATFIL,RADFIL,LATLON,PANEL,TITLE,TEXT,
> >
> >CLEAR,DEVICE,RCMFIL,RADTIM,RADDUR,DITHER,MESO,TVS,CNTR,MAXTOP,RADINFO,ECHO,
> > CLRBAR.
> > GEMPAK-GPRCM>
> >
> >My script is based on your example script posted on the webpage.  Has
> >there been a change to the rcm decoder or rcm format that I may have
> >missed?  Thanks for any ideas.
> >
> >Chris
> >
> >
> 
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