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20010222: eta_84 and NOGAPS (and other model data)

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  • Subject: 20010222: eta_84 and NOGAPS (and other model data)
  • Date: Thu, 22 Feb 2001 11:00:25 -0700
>From: David Fitzgerald <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200102221726.f1MHQbL21514

>Hello,
>
>I have been asked to set up processing NOGAPS and /mETA_84 model data
>here at MU.  I am a little confused at to what regular expression needs
>to go into the second field of the pqact.conf entry for these models.
>For example I use ^Y.Q... for my /mAVN model.  Where do I look for the
>expressions to use for NOGAPS and /mETA_84, and for that matter other
>models?
>
>
>Thanks!!
>
>Dave 
>
>++++++++++++++++++++++++++
>David Fitzgerald   
>System Administrator            Phone: (717) 871-2394  
>Millersville University        Fax: (717) 871-4725 
>Millersville, PA 17551                 E-mail: address@hidden
>

David,

I show expressions for each model at:
http://www.unidata.ucar.edu/packages/gempak/tutorial/pqact/decoders.tbl

For ETA data, each of the 4 grids available on NOAAPORT can be
specified in the third letter of the WMO heading as shown below:
# NOAAport ETA grids
# Grid #211 80km CONUS:    ^[YZ].Q.*/mETA
# Grid #212 40km CONUS:    ^[YZ].R.*/mETA
# Grid #215 20km CONUS:    ^[YZ].U.*/mETA
# Grid #214 47.5km Alaska: ^[YZ].T.*/mETA
# Select any/all grids desired from [QRUT]
HRS    ^[YZ].[QRUT].*/mETA


For dcgrib and dcgrib2, you can use the @@@ template to send each different grid
projection to its own grid file (eg 211, 212, 215 etc). Or, you can use dcgrib2
with the $GEMTBL/grid/gribkey.tbl file to automatically name the output file
based on the model numbers included in the grib products.

If you are getting the NOGAPS feed from fnmoc,  the file names for the global
240 grid look like:
NOGAPS  ^US058GMET-GR1mdl.0058_0240


To make things easier in dcgrib2, I just show a single global pattern for 
sending
all grib data to the decoder:
HDS|NMC2|NOGAPS ^(/u/ftp/gateway|[HOYZ]|US058).*
        PIPE    decoders/dcgrib2 -d data/gempak/logs/dcgrib.log
        -e GEMTBL=/home/gempak/NAWIPS/gempak/tables

With no file name specified, dcgrib2 uses the gribkey.tbl file to determine
the file name template for every product. This is set up to match the
file names expected in the $GEMTBL/config/datatype.tbl file for NMAP.


Steve Chiswell