Dear Rich Thanks for keeping this going.
> In CF, we have some of these parameters of the vertical coordinate > system specified with the "units" and "positive" attributes. And we > already have "add_offset" that could be used for the vertical shift. > > So that just leaves the geoid-based "Vertical Datum" or spheroid-based > "Datum", where the spheroid can be specified with parameters. In the agreed trac ticket 80 https://cf-pcmdi.llnl.gov/trac/ticket/80 we added several more attributes to grid mapping to describe reference surfaces in ways analogous to CRS WKT. We already have attributes to name and specify the reference ellipsoid (spheroid). As far as I can see, we need only to add an attribute of geoid_name to Appendix F to identify the geoid. Would that meet your requirement? Earlier discussions implied that CRS WKT does not have a way to name the geoid specifically. Best wishes Jonathan _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
