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#100: Clarifications to the preamble of section 5 -----------------------------+---------------------------------------------- Reporter: jonathan | Owner: [email protected] Type: defect | Status: new Priority: medium | Milestone: Component: cf-conventions | Version: Resolution: | Keywords: -----------------------------+---------------------------------------------- Comment (by Dave.Allured): Jonathan, Thanks to you and Steve for working on clarification. In the current document (CF 1.6), I have trouble understanding the intent of section 5, paragraph 7: If the coordinate variables for a horizontal grid are not longitude and latitude, it is recommended that they be supplied in addition to the required coordinates. For example, the Cartesian coordinates of a map projection should be supplied as coordinate variables in addition to the required two-dimensional latitude and longitude variables that are identified via the coordinates attribute ... If the required two-dimensional latitude and longitude variables are present and correctly identified, are the one-dimensional Cartesian coordinates also required, or optional? Either way, could you please add an explicit statement about this? In two different use cases that I have encountered, when the data variable is a single horizontal grid, the Cartesian coordinates will increase file size by roughly 67%. I would favor making the Cartesian coordinates explicitly optional. Thanks for your consideration. --Dave -- Ticket URL: <https://cf-pcmdi.llnl.gov/trac/ticket/100#comment:1> 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.
