20020912: 20020910: Convert RUC file into gemapk file

Lodovica,

The RUC #211 F000 files are actually still under KWBC for the present
time, where the forecast times are under KWBG.

A better pattern for the #211 would be:

HDS     ^[YZ].Q... KWB[CG].*/mRUC


A general dcgrib2 pattern that would separate 211 & 236 into appropriate
files could look like:

# RUC/MAPS model output
# Grid #211 CONUS   80km: ^[YZ].Q.*/mRUC
# Grid #236 CONUS   40km: ^[YZ].Q.*/mRUC2
#HRS    ^[YZ].[QW].*/mRUC
        PIPE    decoders/dcgrib2 -d data/gempak/logs/dcgrib.log
                -e GEMTBL=/home/nawips/gempak/tables
                data/gempak/model/YYYYMMDDHH_ruc@@@.gem

Steve Chiswell
Unidata User Support


>From: Lodovica Illari <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200209121940.g8CJev126274

>Steve,
>
>Thanks for your help with the RUC files.  I have tried what you have
>suggested and using dcgrib I have been able to create the 211 files but
>not the 236. I still get the same message:Invalid center id/grid id 
>with 236 grid.
>
>Further, I was looking for an RUC analysis but the 211 files only contains
>forecasts. Is any RUC analysis available?  I was used to get it sometimes 
>ago.
>
>Thanks again
>
>Lodovica
>
>On Tue, 10 Sep 2002, Unidata Support wrote:
>
>> >From: Lodovica Illari <address@hidden>
>> >Organization: UCAR/Unidata
>> >Keywords: 200209101900.g8AJ0u111309
>> 
>> >Hi,
>> >
>> >I use the ldm to ingest RUC data. I have tried dcgrib to convert it to a
>> >gempak file but it gives me the following error message:
>> >
>> >Sep 10 17:56:24 dcgrib[14772]: Starting Up
>> >Sep 10 17:56:24 dcgrib[14772]: Invalid center id/grid id
>> >combination:           7         236/disk20/data/ldm5/gempak/n
>> >ps/02091015.ruc_gem
>> >Sep 10 17:56:24 dcgrib[14772]: can't open file
>> >/disk20/data/ldm5/gempak/nps/02091015.ruc_gem
> >Sep 10 17:56:24 dcgrib[14772]: Exiting
>> >Sep 10 17:56:24 dcgrib[14772]: 1 WMO msgs, 1 GRIBs decoded, 0 written 
>> >
>> >
>> >What do I need to do?
>> >
>> >Please note that I use gempak 5.4.
>> >
>> >Thanks
>> >
>> >Lodovica Illari
>> >
>> >
>> 
>> Lodovica,
>> 
>> There are several different RUC grid projections in the data stream
>> (grid 211 is the 80km, grid 236 is the 40km, and in the future at grid 252 
>> is the 20km).
>> 
>> All grids in a single grid file must have the same projection. The
>> likely cause of the above message is that the file has been created 
>> when an 80km grid was received, and now a grid 236 40km grid is
>> trying to be written to the same file. You need to have unique
>> file names for the different projections.
>> 
>> You can do this by making specific pqact.conf entries for each
>> RUC projection for dcgrib, or I provided a newer program called dcgrib2
>> that can replace a template "@@@" with the grid number.
>> 
>> For dcgrib2, you could simply send all ruc data to the decoder with an outpu
> t
>> file name of YYYYMMDDHH_ruc@@@.gem.
>> 
>> For dcgrib, separating each grid projection by WMO would look like:
>> 
>> ^[YZ].Q... KWBG   --> YYYYMMDDHH_ruc211.gem
>> ^[YZ].W... KWBG   --> YYYYMMDDHH_ruc236.gem
>>           
>>    
>> Steve Chiswell
>> ****************************************************************************
>> Unidata User Support                                    UCAR Unidata Program
>> (303)497-8643                                                  P.O. Box 3000
>> address@hidden                                   Boulder, CO 80307
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>> Unidata WWW Service                        http://www.unidata.ucar.edu/     
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>> 
>