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20050506: 20050506: NGRID feed and gempak



Clint,

In that case...you should know that I added a lot of
decoding/storage features for GRIB2 data for 5.8.1
in time for the new DVB-S data to be operational.

Chiz



>From: Clint Rowe <address@hidden>
>Organization: University of Nebraska Geosciences
>Keywords: 200505062000.j46K0EP3020250

>Chiz,
>We're not running 5.8.1 yet, 'cuz I need to upgrade the system
>(libc is too old, for starters, unless I compile from source --
>and, as I said before, I'm lazy).
>
>Thanks for the info.
>Clint
>
>On Fri, 2005-05-06 at 13:54, Unidata Support wrote:
>> >From: Clint Rowe <address@hidden>
>> >Organization: University of Nebraska Geosciences
>> >Keywords: 200505061746.j46Hk3P3003614
>> 
>> >Chiz,
>> >
>> >What do I need to do to decode the NAM and DGEX products on NGRID?
>> >Di you have an example pqact.conf entry and do I need to make
>> >changes to my gribkey.tbl?
>> >
>> >Sure, I could figure this out on my own, but I'm being lazy ...
>> >
>> >Clint
>> >-- 
>> >====================================================================
>> >Clinton M. Rowe
>> >Associate Professor
>> >Meteorology/Climatology Program                  phone:(402)472-1946
>> >Department of Geosciences                          fax:(402)472-4917
>> >University of Nebraska-Lincoln                        address@hidden
>> >
>> 
>> Clint,
>> 
>> Are you running 5.8.1? The entries are in the pqact.gempak_decoders
>> and gribkey.tbl files.
>> 
>> In pqact.gempak_decoders, you should have lines such as:
>> # ETA/NAM model output
>> # -------------------
>> # NOAAport ETA grids
>> # Grid #211 80km CONUS:    ^[YZ].Q.*/m(ETA|NAM)
>> # Grid #212 40km CONUS:    ^[YZ].R.*/m(ETA|NAM)
>> # Grid #214 47.5km Alaska: ^[YZ].T.*/m(ETA|NAM)
>> # Grid #215 20km CONUS:    ^[YZ].U.*/m(ETA|NAM)
>> # Grid #216 45km Alaska:   ^[YZ].V.*/m(ETA|NAM)
>> # Grid #217 22.5km Alaska: ^[YZ].Y.*/m(ETA|NAM)
>> # Grid #218 12km CONUS:    ^[YZ].B.*/m(ETA|NAM)
>> # Grid #242 11.25km Alaska:^[YZ].S.*/m(ETA|NAM)
>> # Select any/all grids desired from [QRTUVYBS]
>> #
>> # CONDUIT ETA grids
>> # Grid #104 (90km):     MT.(eta|nam).*#104
>> # Grid #212 (40km):     MT.(eta|nam).*#212
>> # Grid #215 (20km):     MT.(eta|nam).*#215
>> # Grid #216 (45km):     MT.(eta|nam).*#216
>> # Grid #218 (12km):     MT.(eta|nam).*#218
>> #
>> # DVB-S NOAAPORT
>> # Grid #218 (12km CONUS grib2): ^[LM].B... KWBE.*#218
>> # Grid #242 (11.25km Alaska grib2): ^[LM].S... KWBE.*#242
>> HDS|CONDUIT|NGRID       (/mETA|/mNAM|MT.eta|MT.nam|^[LM]..... KWBE)
>>         PIPE    decoders/dcgrib2 -d data/gempak/logs/dcgrib2_ETA.log
>>                 -e GEMTBL=@GEMTBL@
>> 
>> Then further down in the file:
>> 
>> # DGEX Grid 185 CONUS 12km
>> NGRID   ^[LM].E... KWBD ([0-3][0-9])([0-2][0-9][0-6][0-9])
>>         PIPE    decoders/dcgrib2 -m 200 -d data/gempak/logs/ngrib.log
>>         -e GEMTBL=@GEMTBL@
>>         data/gempak/model/dgex/YYYYMMDDHHfFFF_dgex.gem
>> #
>> # DGEX Grid 186 Alaska 12km
>> NGRID   ^[LM].F... KWBD ([0-3][0-9])([0-2][0-9][0-6][0-9])
>>         PIPE    decoders/dcgrib2 -d data/gempak/logs/ngrib.log
>>         -e GEMTBL=@GEMTBL@
>>         data/gempak/model/dgex-ak/YYYYMMDDHHfFFF_dgex.gem
>> 
>> The first will capture the NGRID products "^[LM].* KWBE" which will
>> comprise the ETA/NAM 218 and 242 alaska grids.
>> The 2 DGEX entries are self explanatory.
>> 
>> The gribkey.tbl lines for eta218 and eta242 are:
>> 007   x   084,085   218    data/gempak/model/eta12km/YYYYMMDDHHfFFF_eta@@@.g
> em  1000
>> 007   x   084,085   242    data/gempak/model/eta-ak/YYYYMMDDHHfFFF_eta@@@.ge
> m   1000
>> 
>> 
>> I'm storing these files using the FFF template because they can get big in a
>  single file.
>> In the datatype.tbl file:
>> ETA218       $MODEL/eta12km            YYYYMMDDHHfFFF_eta218.gem CAT_GRD  SC
> AT_FCT   -1     -1     -1      OFF/0/0
>> ETA_AK       $MODEL/eta-ak             YYYYMMDDHHfFFF_eta.gem    CAT_GRD  SC
> AT_FCT   -1     -1     -1      OFF/0/0
>> 
>> ! DGEX
>> DGEX         $MODEL/dgex               YYYYMMDDHHfFFF_dgex.gem   CAT_GRD  SC
> AT_FCT   -1     -1     -1      OFF/0/0
>> DGEX_AK      $MODEL/dgex-ak            YYYYMMDDHHfFFF_dgex.gem   CAT_GRD  SC
> AT_FCT   -1     -1     -1      OFF/0/0
>> 
>> 
>> If you are running 5.8.1, then the "OFF/" string isn't there in the lines ab
> ove, but will be added in 5.8.2.
>> If your table is pre5.8.1, thenb the "0/0" horizontal remapping isn't there 
> either.
>> 
>> Chiz
>> 
>> 
>> 
>> Steve Chiswell
>> Unidata User Support
>> 
>> 
>> --
>> ****************************************************************************
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>> Unidata User Support                                    UCAR Unidata Program
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>> (303)497-8643                                                  P.O. Box 3000
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>-- 
>====================================================================
>Clinton M. Rowe
>Associate Professor
>Meteorology/Climatology Program                  phone:(402)472-1946
>Department of Geosciences                          fax:(402)472-4917
>University of Nebraska-Lincoln                        address@hidden
>
--
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