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3.1.3 Creating a NetCDF File in Fortran 90

Use NF90_CREATE to create a file. Then use NF90_DEF_DIM to define each shared dimension. The data variables are then specified with NF90_DEF_VAR. Any attributes are added with NF90_PUT_ATT. Finally, call NF90_ENDDEF to tell the library that you are done defining the metadata, and ready to start writing the data.

After all data are written to the file, call NF90_CLOSE to ensure that all buffers are flushed, and any resources associated with the open file are returned to the operating system.

For a typical sequence of calls see Creating a NetCDF Dataset (The NetCDF Fortran 90 Interface Guide).

The netCDF Fortran 90 API calls the Fortran 77 API, which in turn calls the netCDF C library.

The name of each Fortran function shows the outline of the F77 function it wraps (for example, NF90_CREATE is a wrapper around NF_CREATE). The F77 functions are, in turn, wrappers around the C functions.

NF90_CREATE (The NetCDF Fortran 90 Interface Guide)	create a netCDF file
NF90_DEF_DIM (The NetCDF Fortran 90 Interface Guide)	define a dimension
NF90_DEF_VAR (The NetCDF Fortran 90 Interface Guide)	define a variable
NF90_PUT_ATT_ type (The NetCDF Fortran 90 Interface Guide)	write an attribute
NF90_ENDDEF (The NetCDF Fortran 90 Interface Guide)	end define mode
NF90_PUT_VARA_ type (The NetCDF Fortran 90 Interface Guide)	write arrays of data
NF90_CLOSE (The NetCDF Fortran 90 Interface Guide)	close the netCDF file

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