Hi All,
I've noticed some ambiguity in the CF document around the use of the
"cf_role" attribute which I think needs clarification.
In Appendix A it states that the *cf_role* attribute is valid for use on
a coordinate variable only, however, in virtually, if not all, the
examples in Appendix
I've added a pull request and issue on Github for a change to Chapter 2 of
the Conventions that adds support for the *string* data type in variables.
Trac is down right now, so there is no Trac ticket. You can see the issue
and pull request at
Issue - https://github.com/cf-convention/cf-convention