Dear Charles Thank you for your email, and the subsequent one to Jim. In my earlier posting I was not particularly arguing against the proposal, but I thought the question should be asked. Evidently it is your intention that quantities with these names should indeed be regarded as comparable. That is OK. If at some point there arises a need for more specifically defined binary masks, other standard names could be proposed for them.
You propose to include a nominal threshold of zero, indicating that any amount of cloud etc. constitutes "presence". I think we could avoid that need, and the related need to introduce standard names for the quantities in which the threshold was set, by stating in the definition that if no threshold is supplied, the binary mask is 1 if there is any non-zero amount of cloud etc. Best wishes Jonathan _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
