Updates for USAF 557WW and NESDIS - #393
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Thank you for replying so promptly. I will reach back to the USAF for the latest edition of their GRIB Edition 2 Reference Manual. |
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I have a copy of the GRIB manual from 557WW, dating from 2023. It is a Word document. Do you have an email address that I can send it to? |
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Eric,
***@***.*** BTW is there a URL for the nesdis grib table?
Thanks.
Wesley
…On Thu, May 29, 2025 at 8:53 PM Eric Kemp ***@***.***> wrote:
*emkemp* left a comment (NOAA-EMC/wgrib2#393)
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I have a copy of the GRIB manual from 557WW, dating from 2023. It is a
Word document. Do you have an email address that I can send it to?
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The main worry that I have are the names for the grib variables. Names are not part of the grib2 standard but should have some official status. Later on someone could define "official" names for the 557WW or Nesdis gribtables. There is an "extra" directories for user contributions which seems like a possible place for a non-official grib table. The other tables are descriptive can remain in the main source code directory. Anyways this is my opinion and others are welcome. |
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@emkemp, the files CodeTable_3.2.dat and CodeTable_4.212.dat are generated from scripts in the wmo_scripts directory. And do not add I'm most probably blind, but where are all the files CodeTable_*.USAF.dat used in the code? I only see CodeTable_4.235.USAF.dat It is very unfortunate that USAF redefines official WMO entries, but I guess there's not much you can do about it :-( |
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Catching up to this: @manfredsc I don' t understand your comment about USAF redefining official WMO entries. All variables (parameters) specified in the official WMO documentation are supported. They only specify parameters that are reserved for local use. There is only one standalone USAF table added. The rest of the changes were (apparently unsatisfactorily) added to existing .dat files. I will work on incorporating your suggestions. |
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I just pushed some changes, moving the USAF specific files into the same directory, and split CodeTables 3.2 and 4.235 into separate tables. Regarding removal of the "string="undefined"" code -- those changes are included in the latest push. However, I note that your own wmo_scripts/get_code_Table_4.3.sh needs to be updated to make the same change. |
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@emkemp, well, I stand corrected. |
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This is a follow-up on the question of "official status" on the GRIB2 abbreviations I added to wgrib2. I provided a list of the abbreviations to Mr Nate Wright, Deputy Chief of Environmental Information for the 16th Weather Squadron. His response: """ I’ve finally gotten around to taking a look at these. I have no problems with any of these so you have my endorsement to proceed. Thanks! I can add you to the email chain if you want more thorough confirmation, or wish to engage Mr Wright directly. (I will not be offended!) Please let me know how you want to proceed. |
Replaced ncep_tableC.dat inclusion with CommonCodeTable_12.dat.
4 participants
This pull request includes changes to support select variables from the USAF 557WW GRIB2 Reference Table. The main focus is on variables produced by the Global Hydro-Information (GHI) system, an implementation of the NASA Land Information System.
There are also a handful of updates provided by NOAA/NESDIS, which were incorporated into the NASA fork of wgrib2.