Hi Mike, No, the C++ library does not handle conversion from packed data by interpreting the scale_factor and add_offset variable attributes. For the formula to use in your code, see: http://www.unidata.ucar.edu/software/netcdf/docs/BestPractices.html#Packed%20Data%20Values --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: RWH-886850 Department: Support netCDF Priority: Normal Status: Closed