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4.2 Language Types Corresponding to netCDF external data types

The following table gives the netCDF external data types and the corresponding type constants for defining variables in the FORTRAN interface:

Type FORTRAN API Mnemonic Bits


byte NF_BYTE 8


char NF_CHAR 8


short NF_SHORT 16


int NF_INT 32


float NF_FLOAT 32


double NF_DOUBLE 64

The first column gives the netCDF external data type, which is the same as the CDL data type. The next column gives the corresponding FORTRAN parameter for use in netCDF functions (the parameters are defined in the netCDF FORTRAN include-file netcdf.inc). The last column gives the number of bits used in the external representation of values of the corresponding type.

Note that there are no netCDF types corresponding to 64-bit integers or to characters wider than 8 bits in the current version of the netCDF library.