To construct a netCDF file you need to:

• create the file - Specify the name, optionally the format: classic (the default), 64bit-offset, or 64-bit data.
• define metadata - Specify the names and types of dimensions, data variables, and attributes.
• write data - Write arrays of data from program variables to the netCDF file. Arrays of data may be written all at once, or in subsets.
• close the file - Close the file to flush all buffers to the disk and free all resources allocated for this file.