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Hi, > I need to convert netcdf files to grib, and then the grids that gempak > can read. Searching the web hasn't led to an effective way to do it. Do you > have any suggestions on how to do it successfully? In general, you can't necessarily convert netCDF to GRIB, because they use different data models. For example, if a netCDF file contains multiple multi-dimensional variables of various ranks (dimensionalities), each with multiple descriptive attributes specifying units, standard names, coordinate systems, and cell measures, there is no way to represent all that information in a GRIB file. For converting GRIB to netCDF or part of a netCDF file to GRIB format, there are several software packages that might be helpful http://www.unidata.ucar.edu/software/netcdf/docs/faq.html#grib I don't know much about gempak, except that it can't read all GRIB files or all netCDF files, but you might try asking about specific conversions supported by gempak on the Unidata support list, address@hidden ... --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: QXF-267477 Department: Support netCDF Priority: Normal Status: Closed