[Tagging] natural=bay on areas

Andrew Harvey andrew.harvey4 at gmail.com
Thu Mar 30 12:15:15 UTC 2017

On 30 March 2017 at 07:41, Juan Pablo Tolosa Sanzana
<jptolosanzana at gmail.com> wrote:
> An exact limit between the open ocean and a sheltered coast is too arbitrary
> as natural feature. It seems a political issue. You can use
> boundary=maritime + border_type=baseline for excluding internal waters from
> the open ocean, according of laws of the country. Check the article
> https://en.wikipedia.org/wiki/Internal_waters

I'm looking to tag natural features as surveyed on the ground, not
political or administrative boundaries. Sure the boundary is fuzzy but
we can still get it close.

On 30 March 2017 at 08:00, Christoph Hormann <osm at imagico.de> wrote:
> No, it is not a political issue, the position of the baseline is not in
> doubt here.  If Andrew wants to indicate the sheltered nature of the
> coast in some way via supplemental tags that seems perfectly fine - as
> long as these tags are documented and verifiable of course.
> In any case tagging the bay as natural=bay will already indicate this
> part of the coastline to be of special nature.

Agreed. coastline=pelagic, natural=ria all are potential ways to help here.

For me Botany Bay (http://www.openstreetmap.org/relation/1214649)
isn't part of the open ocean but Bondi Bay
(http://www.openstreetmap.org/node/926183187) is, even though both
offer shelter.

On 30 March 2017 at 18:25, Martin Koppenhoefer <dieterdreist at gmail.com> wrote:
>> On 30 Mar 2017, at 01:06, Eugene Alvin Villar <seav80 at gmail.com> wrote:
>> because UNCLOS allows countries to specify a baseline separate from the coastline that encloses parts of the sea/ocean (thereby making those parts internal waters of the country) .
> I thought the baseline was generally separate from the actual coastline. It is an administrative construct, while this thread is about natural features. Internal waters, territorial waters , exclusive sea zones, they're all about political and economical power and benefit, not about natural geologic/geographical configurations.

Exactly. According to https://en.wikipedia.org/wiki/Baseline_(sea),
the baseline political, they are like an administrative boundary.
That's a separate discussion, I'm only talking about natural features

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