[Tagging] RFC ele:regional

[Martin Koppenhoefer]

Am Fr., 8. Mai 2020 um 17:16 Uhr schrieb Martin Koppenhoefer <
dieterdreist at gmail.com>:

> I was not aware there weren't any meaningful differences (when comparing
> some official height references to the German DHHN92 those in wikipedia.de
> with delta information all are within 1m besides Belgium DNG/TAW, which is
> -2.3). Maybe all we should do is clarify that we are NOT expecting
> ellipsoid heights in ele tags (leaving open the possibility to add
> ele:datum tags)? WGS84 uses a 2 dimensional ellipsoidal coordinate system?
> Wouldn't "natural" height information be based on this ellipsoid? I'm all
> fine with stating we should use geoid heights, but it doesn't necessarily
> seem to be implicit.
>


forgot the link:
https://de.wikipedia.org/wiki/H%C3%B6he_%C3%BCber_dem_Meeresspiegel#Amtliche_H%C3%B6hensysteme_ausgew%C3%A4hlter_L%C3%A4nder
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