Geometrical height is sometimes used synonymously with geodetic height, but the strict interpretation is height above the ellipsoid surface along a line from the center of the Earth to the surface. Geodetic heights are normal to the ellipsoid surface.
Visit us on Facebook Jim Biard Research Scholar Cooperative Institute for Climate and Satellites NC North Carolina State University NOAA's National Climatic Data Center 151 Patton Ave, Asheville, NC 28801 e: [email protected] o: +1 828 271 4900 On Feb 7, 2014, at 1:25 PM, Jonathan Gregory <[email protected]> wrote: > Dear Heiko > >> 1. height above ground > has standard_name of height, as you say > >> 2. height above mean sea level > I don't think we have a standard name for this yet, but height_above_sea_level > would be consistent with existing names. For example, there is a stdname of > sea_surface_height_above_sea_level. > >> 3. depth below surface > is depth, as you say. > >> 4. geometrical height > What does this mean? i.e. height above what reference level? > > altitude is height above the geoid. Maybe that is geometrical height? > >> And for pressure vertical coordinates: is the correct standard_name >> 'air_pressure'? > > Yes. > >> Could these eventually be mentioned in the Convention besides the >> standard_names for dimensionless vertical coordinates? > > This sounds to me like another possible entry for a FAQ. Would that be a good > idea? > > Best wishes > > Jonathan > _______________________________________________ > CF-metadata mailing list > [email protected] > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
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