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#107: CF Data Model 1.7 -----------------------------+---------------------------------------------- Reporter: markh | Owner: [email protected] Type: task | Status: new Priority: medium | Milestone: Component: cf-conventions | Version: Resolution: | Keywords: -----------------------------+---------------------------------------------- Comment (by biard): Jon, I guess this is the ultimate question. Local sea level can define the zero point for your depth measurements, and as such it defines a coordinate system, but does it qualify as a Coordinate Reference System vertical datum? My strong tendency is to say no. It doesn't mean the depth measurement isn't highly useful, but isn't something that can be located geographically/geodetically. Now, if you also had the distance from local sea level to the WGS84 ellipsoid for each depth measured, then you would have defined a custom CRS vertical datum that would be unique for that dataset. Grace and peace, Jim -- Ticket URL: <https://cf-pcmdi.llnl.gov/trac/ticket/107#comment:46> 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.
