A netCDF dimension in an open netCDF dataset is referred to by a small integer called a dimension ID . Create a dimension, given its name and length. Get a dimension ID from its name. Rename a dimension. At most one unlimited length dimension, called the record dimension, may be defined for each netCDF dataset.
Case is significant.
Otherwise, the returned status indicates an error. The specified dimension name is the name of another existing dimension. The specified length is not greater than zero. The specified length is unlimited, but there is already an unlimited length dimension defined for this netCDF dataset. The specified netCDF ID does not refer to an open netCDF dataset.