eccodes compatible local definitions (grib tables) for NCEP WMO Grib2

[emfdavid]

I am working with the HRRR & GFS grib2 files via NODD.
I would like to use CFGRIB to read your products, but I can't seem to find any local definitions that implement the recent NCEP WMO GRIB2 Documentation?

My colleague has also started a rust grib reader which is built by hand from the NCEP WMO doc - it looks similar to some of the fortran code in this repo.

Any assistance in building a machine readable table format (I don't love the eccodes format but it exists and has an implementation) to go with the PDF would be most appreciated.

[edwardhartnett]

Have you looked at the NCEPLIBS-g2tmpl project? Perhaps it contains what you need.

[emfdavid]

Have you looked at the NCEPLIBS-g2tmpl project? Perhaps it contains what you need.

So that NCEPLIBS-g2tmpl implements the NCEP grib spec in Fortran90.
Is it possible to dump the definitions in a machine readable form (json?) from that library? Or would we need to write a fortran application or an f2py wrapper to access the table definitions?

[edwardhartnett]

I would like have this in a machine-readable format. However it's not clear how that will happen yet.

[JackKelly]

gdal/frmts/grib/data/ contains a lot of (all of??) the GRIB2 tables stored as CSV.

Specifically, this CSV contains the NCEP-specific GRIB table (although I haven't checked if this CSV is complete or up-to-date): gdal/frmts/grib/data/grib2_table_4_2_local_NCEP.csv

The README for the GDAL GRIB CSVs is here: gdal/frmts/grib/degrib/README.TXT