Dear all Thank you for clarifications and further information.
We used "altitude" for "height above geoid" because that's what it most commonly means, I think. However, it's unclear. To avoid confusion, we could rename altitude as height_above_geoid, using aliases. There are 14 standard names which use the word altitude. Would that be worth doing? Similarly, we could rename plain "height" as height_above_surface. There are about 5 standard names which would be affected. Likewise (and relating also to another thread), we could rename plain "depth" as depth_below_surface. There are about 14 standard names using this word in that sense. Is this worthwhile, or shall we continue with short words and rely on the definitions? Opinions would be welcome. It would be really useful if anyone could explain how the geoid is identified in CRS WKT. Best wishes Jonathan _______________________________________________ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata