Hi Kapil, There are several ways to merge multiple netCDF files into one file. Using the netCDF-Java software, you can do "aggregation" with NcML, as the example in the email response illustrates: http://www.unidata.ucar.edu/mailing_lists/archives/netcdf-java/2008-February/000593.html An explanation of aggregating with NcML is here: http://www.unidata.ucar.edu/software/netcdf/ncml/v2.2/Aggregation.html Another way to merge files is by using the NCO (netCDF Operators) package: http://nco.sourceforge.net/ where the programs "ncecat" and "ncks" might do what you want: http://nco.sourceforge.net/nco.html#ncecat-netCDF-Ensemble-Concatenator http://nco.sourceforge.net/nco.html#ncks-netCDF-Kitchen-Sink Finally, if you are familiar with one of the scripting languages Perl, Python, or Ruby, you could use the corresponding netCDF interface to read data from the input files and write it to the output file more easily than writing a C or Fortran program to do the same thing. --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: VFS-516826 Department: Support netCDF Priority: Normal Status: Closed