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(RESOLVED) How to process the FV3GFS nemsio files?

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Dear Colleges,

How to process the the FV3GFS the gfs.t*z.atmf*.nemsio files with ungrib? As far as I know, these files contain GFS model data at higher spatial and vertical resolution (model resolution). I think I will need to convert the nemsio format files into grb format first.
Could you help me in this issue?

Best regards,
If the files are not already in grib format, you can follow the instructions here to convert them into intermediate format:

If they are in netcdf format, you could also try the script from this page (netcdf_to_intermediate.f):
This fortran script was written by another WRF user for their application, so you'll need to modify it to make it work for your specific application.