The restriction that `char` attributes and variables should contain only ASCII characters is not warranted. The Netcdf-C library is agnostic about the character set of data stored within `char` attributes and `char` variables. UTF-8 and other character sets are easily embedded within strings stored as `char` data.
Therefore I suggest no mention of a character set restriction, outside of the CF controlled vocabulary. Alternatively you could establish the *default* interpretation of string data (both `char` and `string` data types) is the ASCII/UTF-8 conflation. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/cf-convention/cf-conventions/issues/141#issuecomment-407512765
