Dear Jim We are discussing auxiliary coordinate variables. They do not have to be 1D or monotonic. Those requirements apply to coordinate variables in the Unidata sense. CF distinguishes these two concepts in Sect 1.2.
> The point is, the information in the variable *is* coordinate information, I would say, if it's missing, it's not information. > What if we say something along the lines of, "Applications should treat the > data as missing where the auxiliary coordinates are missing when plotting > data."? Would that resolve the problem? Plotting is not the only thing that an application might wish to use it for. If we said, more generally, "Applications should treat the data as missing for all purposes where the aux coord variables are missing", it would be almost the same as not allowing missing data in aux coord vars, since there would be no point in providing a data value if it was not permitted to use it. Although I am arguing one side, I could be convinced either way. But it does feel unsafe to me at present. Cheers Jonathan _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
