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Excerpt
hiddentrue

If you have a file with both Control and Perturbed forecastforecasts, grib_to_netcdf will only convert the pf. Normally from 51 members in the GRIB file, only 50 appear in the netCDF.

If you have a GRIB file with both Control and Perturbed forecast in the same GRIB fileforecasts, grib_to_netcdf will only convert the Perturbed Forecast. From 51 members present in the GRIB file, only 50 appear in the netCDF file.

No Format
$% grib_to_netcdf  -o output.nc -s input.grib
...
grib_to_netcdf: Found 51 GRIB fields in 1 file.
...
grib_to_netcdf: Done.


$% ncinfo output.nc
...
    dimensions(sizes): longitude(26), latitude(31), number(50), time(1)

This only occurs when 'type=pf and type=cf' fields coexist on in the same file (common use case if you get real-time data).

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