The C library is the core implementation on which non-Java interfaces are built. It provides reliability, performance, and portability.

• Write a two-dimensional array of sample data and read data from this file.
• Write some variables with units attributes and coordinate dimensions and read data variables and attributes from this file.
• Write some four-dimensional variables using a record dimension and read from the variables from this file.
• Employ ncgen to generate the C code needed to create the corresponding NetCDF file from a CDL text file.