[Tagging] Feature Proposal - RFC - Coastline-River transit placement
Christoph Hormann
chris_hormann at gmx.de
Sat Mar 29 21:10:21 UTC 2014
On Saturday 29 March 2014, Richard Z. wrote:
> [...]
> * if part of the rationale is to determine whether some city is on
> the coast than that would typically be better defined by harbor or
> other properties. Any such application will require a more
> fine-grained approach anyway. Is there a harbor? Can I swim or surf
> there?
This was meant as an example - i did not specifically have this
application in mind. Using the coastline to determine the distance of
some object to the coast would be equally suited.
The point i am trying to make is that for applications other than map
rendering consistent placement of the coastline-river transit is
important as well.
Using water salinity as a criterion will not work since there often is
no continuous transit from freshwater to saltwater but a layering with
freshwater on top and the heavier saltwater below. Apart from that
fast flowing rivers can reduce the salinity quite far out into the
ocean.
--
Christoph Hormann
http://www.imagico.de/
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