I am not sure what you are asking for. Are you asking for ncgen to read ncml files and create a (more-or-less) equivalent netcdf-4 file? Or are you asking for the netcdf C library to support aggregation? Or something else? =Dennis Heimbigner Unidata Ticket Details =================== Ticket ID: BAR-930850 Department: Support netCDF Priority: Normal Status: Closed