[Tagging] natural=bay on areas
Christoph Hormann
osm at imagico.de
Mon Mar 27 11:46:25 UTC 2017
On Monday 27 March 2017, Andrew Harvey wrote:
>
> What water body is Botany Bay
> https://en.wikipedia.org/wiki/Botany_Bay part of?
>
> I don't think it's right too tag the inside of the bay as coastline.
> "A coastline or a seashore is the area where land meets the sea or
> ocean" the inside of the bay isn't the sea, hence the water/land
> boundary isn't the coastline.
I have had this discussion countless times in other cases and Botany Bay
is not even a borderline case.
It is a bay of the Tasman Sea/Pacific Ocean. Ecologically it is a fully
maritime waterbody.
The only alternative would be to consider it the lowest part of the
Georges River which would be an extreme stretch considering the size of
the bay and its connection to the sea compared to the discharge of the
river.
More elaborate discussion of the matter can be found on the wiki:
http://wiki.openstreetmap.org/wiki/Proposed_Features/Coastline-River_transit_placement
As said a bay is not a separate waterbody in OSM so if you consider
something a bay you need to decide what it is a bay of. Tagging
natural=water + water=bay is always factually wrong (and is also only
used about 80 times globally).
--
Christoph Hormann
http://www.imagico.de/
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