@Dave-Allured coordinates are handled special in that they interpreted and kept around for various operations you might want to do with them. See http://xarray.pydata.org/en/stable/data-structures.html#coordinates
It will attempt to "decode CF" by default, http://xarray.pydata.org/en/stable/generated/xarray.decode_cf.html but xarray is not a CF specific library. It doesn't do anything special as far as I know with `flag_values`. Or with `ancillary_variables` for that matter. The xarray maintainers have recommended iris if you want full a CF aware tool. -- You are receiving this because you commented. Reply to this email directly or view it on GitHub: https://github.com/cf-convention/cf-conventions/issues/141#issuecomment-410363389
