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CDO is a collection of Climate Data Operators, including, e.g. vertical interpolation, which can by applied to meteorological fields in various formats, including GRIB. This tool box is installed at ECMWF but has been developed and is maintained by MPI, Hamburg. Please direct all queries to them. For more details refer to the CDO home page.
Various tools are available to convert GRIB to netCDF.
Metview also provides an examiner for BUFR data, which can be started on ecgate as
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