[ldm-users] Confusion about WMO Headers for GFS Grid #215

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  • Subject: [ldm-users] Confusion about WMO Headers for GFS Grid #215
  • From: daryl herzmann <akrherz@xxxxxxxxxxx>
  • Date: Thu, 19 May 2016 10:46:34 -0500
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I must be loosing my mind, but I can't resolve what is going on with the GFS Grid 215. What are the proper WMO headers for it?


For the NAM we have:
# Grid #215 20km CONUS:    ^[YZ].U.*/mNAM

Okay, good. the 'U' matches here:

http://www.nco.ncep.noaa.gov/pmb/docs/on388/appendixa.html  Table A.2

But then we have:

# Grid #215 CONUS 20km: ^[YZ].N... KWBC
        PIPE    dcgrib2 -m 20000 -d data/gempak/logs/dcgrib2_GFS2conus.log
                -e GEMTBL=@GEMTBL@

Why 'N' and also, which is right [YZ] or [LM] ?

N should be alaska grid 239?

But as i look on the NGRID ldm feed, I currently see:

NGRID 33630132 YRNC94 KWBC 191200 !grib2/ncep/GFS/#215/201605191200F012/RELH/0 - FRZL

So its using N?  Waaaaaaaaaaaaa.....

If somebody can hit me with the clue-by-four, I would be happy again!


 * daryl herzmann
 * Systems Analyst III -- Iowa Environmental Mesonet
 * https://mesonet.agron.iastate.edu

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