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20041216: GFS pqact entries

Ken,.

I provide the following pattern examples for GEMPAK:

#
# NOAAport GFS/AVN model output
# -----------------------
# AWIPS grids
# Grid #201 N. Hemisphere 381km: ^[YZ].A... KWBC.*/m(AVN|SSIAVN|GFS|SSIGFS)
# Grid #202 CONUS         190km: ^[YZ].I... KWBC.*/m(AVN|SSIAVN|GFS|SSIGFS)
# Grid #203 Alaska        190km: ^[YZ].J... KWBC.*/m(AVN|SSIAVN|GFS|SSIGFS)
# Grid #211 CONUS          80km: ^[YZ].Q... KWBC.*/m(AVN|SSIAVN|GFS|SSIGFS)
# Grid #213 CONUS          95km: ^[YZ].H... KWBC.*/m(AVN|SSIAVN|GFS|SSIGFS)
# Grid #225 Hawaii         80km: ^[YZ].G... KWBC.*/m(AVN|SSIAVN|GFS|SSIGFS)
#
# Select any/all grids desired from [AGHIJQ]
HDS     ^[YZ].[AGHIJQ]... KWB. 
([0-3][0-9])([0-2][0-9]).*/m(AVN|SSIAVN|GFS|SSIGFS)
        PIPE    decoders/dcgrib2 -d data/gempak/logs/dcgrib2_GFS.log
#
# Global GFS (Spectral) Thinned grids
# Grid octets I-P will be stitched together as a single global grid
#
HDS     ^H.[I-P]... KWBC ([0-3][0-9])([0-2][0-9])
        PIPE    decoders/dcgrib2 -d data/gempak/logs/dcgrib2_GFSthin.log


You would most likely be interested in the #211 grid (grid identified "Q")
in the first pattern shown above.

Steve Chiswell
Unidata User Support




>From: Ken Scheeringa <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200412162005.iBGK52lI008602

>
>Hello again support,
>
>Can you give me some examples of pqact.conf entries
>that use the HDS feed to capture GFS grids for
>specific levels and parameters for the CONUS?
>I have been looking for some on the web but haven't
>found it yet.
>
>Thanks!
>
>
>On Fri, 10 Dec 2004, Unidata Support wrote:
>
>> 
>> Ken,
>> 
>> The CONDUIT grids for GFS are all global grids, so you wouldn't be
>> able to restrict the incoming data to just CONUS. You could restrict to
>> specific parameters, levels, etc depending on feedtype, but the grid is
>> a single size...and the CONDUIT grids are large. Depending on your input
>> data need, you could restrict the incoming grids to certain forecast times,
>> but if you don't need the full set of levels and parameters, you may
>> want to use the data available via the HDS data stream.
>> 
>> There are CONUS GFS grids in the HDS data stream of the IDD.
>> These would be the #211 grid which is 80km. These are at the same 
>> covereage and resolution as the ETA (aka NAM) and RUC grids available
>> on grid #211.
>> 
>> Steve Chiswell
>> Unidata User SUpport
>> 
>> 
>> 
>> >From: Ken Scheeringa <address@hidden>
>> >Organization: UCAR/Unidata
>> >Keywords: 200412101855.iBAItYlI003044
>> 
>> >Hello,
>> >
>> >I am exploring the use of the GFS model grids as a data
>> >source for near-term projection of the transport of soybean
>> >rust spores from the US Gulf Coast states next year into Indiana.
>> >(Soybean rust is a dreaded soybean disease new to the USA.)
>> >
>> >I am unsure about how to set up a pqact.conf entry to limit
>> >the forecast grids to just the continental USA.  I don't want
>> >to overwhelm our aged UNIX machine with data outside our
>> >geographical area of interest.
>> >
>> >I have read your online "IDD feed naming conventions" segment
>> >as well as your recent emails on the subject.  Some of the
>> >examples begin with:
>> >
>> >CONDUIT /afs/.nwstg.nws.noaa.gov/ftp/SL.us008001......!grib/ncep/....
>> >
>> >and others just have
>> >CONDUIT MT.gfs....
>> >
>> >while I also find
>> >HDS | CONDUIT......
>> >
>> >
>> >An alternative to LDM might be to download the model output
>> >from the NWS 'tgftp' web site, but I don't see any options there
>> >to narrow selections down to the   !grib/ncep/96/#003/.....00016 
>> >type of criteria.
>> >
>> >It may be I just don't understand these various request formats
>> >and grid number assignments.  Or maybe I should be using a
>> >different forecast model?
>> >
>> >Given my objective stated at the beginning, can you recommend
>> >how I can obtain just the data I really need and perhaps which
>> >access method would be the most efficient?
>> >
>> >Thanks!
>> >
>> >
>> >***************************************************************************
> ***
>> > *
>> >Ken Scheeringa                       Indiana Climate Page
>> >State Climatologist                  http://shadow.agry.purdue.edu
>> >Agronomy Dept                          
>> >Purdue University                      featuring climate data archives:
>> >e-mail: address@hidden                  daily coop stations :     1994+
>> >fax: 765.496.2926                        hourly airport data : Jul 1996+
>> >phone: 765.494.8105                      30-min autostation  :     1999+
>> >                                       updated daily
>> >                                         Also monthly/daily normals 
>> >***************************************************************************
> ***
>> > *
>> >
>> --
>> ****************************************************************************
>> Unidata User Support                                    UCAR Unidata Program
>> (303)497-8643                                                  P.O. Box 3000
>> address@hidden                                   Boulder, CO 80307
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>
>******************************************************************************
> *
>Ken Scheeringa                       Indiana Climate Page
>State Climatologist                  http://shadow.agry.purdue.edu
>Agronomy Dept                          
>Purdue University                      featuring climate data archives:
>e-mail: address@hidden                  daily coop stations :     1994+
>fax: 765.496.2926                        hourly airport data : Jul 1996+
>phone: 765.494.8105                      30-min autostation  :     1999+
>                                       updated daily
>                                         Also monthly/daily normals 
>******************************************************************************
> *
>
--
NOTE: All email exchanges with Unidata User Support are recorded in the
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