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#95: Development of CF 1.5 Data Model -----------------------------+---------------------------------------------- Reporter: markh | Owner: [email protected] Type: task | Status: new Priority: medium | Milestone: Component: cf-conventions | Version: Resolution: | Keywords: -----------------------------+---------------------------------------------- Comment (by rhattersley): Replying to [comment:81 bnl]: > While I'm out of my comfort zone, I'm still not up for two semantic distinctions. What happens if I take variable "A" from file "afile" and variable B from file "bfile" and put them both in file "cfile". What then do I do with the global attributes from file "afile" and "bfile"? Do I leave them as semantically distinct global attributes of A and B? What if I do it again and put them in "dfile". What now has happened to all these (different) global attributes? Indeed. These are very good questions, and ones that have been nagging at me for quite some time. Having seen what happens when one takes the all- attributes-are-really-data-attributes approach (which is what we did with Iris), I'm now of the opinion that ''only the end-user knows''. All we should do is present the information (all of it!) and let them decide. > "file" attributes really only have useful meaning when variables all stay in the same containers ... and never get mixed and matched into differing output files. Just as CF doesn't attempt to describe what happens to data variable metadata when one processes a data variable, it shouldn't describe what happens to file metadata when one processess files. -- Ticket URL: <https://cf-pcmdi.llnl.gov/trac/ticket/95#comment:82> CF Metadata <http://cf-pcmdi.llnl.gov/> CF Metadata This message came from the CF Trac system. To unsubscribe, without unsubscribing to the regular cf-metadata list, send a message to "[email protected]" with "unsubscribe cf-metadata" in the body of your message.
