[Tagging] Is waterway=riverbank an 'Old scheme' ?
osm at imagico.de
Sat Sep 8 09:21:05 UTC 2018
On Saturday 08 September 2018, Graeme Fitzpatrick wrote:
> The imagery I was working of had apparently been taken during the dry
> season as the actual river channel with water in it was ~30 - 50 m's
> wide. But the wet season river (or possibly flood?) channel was very
> obviously ~500 - 700 m's wide.
> What should we be marking as the "riverbank" - where the water is
> visible "now", or the defined limits of where it spreads out to in
> the wet season?
Note in many cases such situations are mapped based on the assumption of
armchair mappers that the floodplain of a braided river is fully water
covered at some time of the year - which is wrong in many cases. See
The wiki has contained suggestions for varying water levels for quite
In any case you should never map a water area based on the assumption it
is actually water covered at some time without evidence it actually is.
If you are unfamiliar with an area it is usually better to map what you
can observe on the sources available than to just guess.
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