Changeset: 46321637
Edited lots of things
Closed by Liam Piper
Tags
created_by | iD 2.1.2 |
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host | https://www.openstreetmap.org/id |
imagery_used | Bing aerial imagery |
locale | en-us |
Discussion
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Comment from nammala
Hi Liam Piper,
Welcome and thanks for contributing to OpenStreetMap. The natural=yes tag is not valid, it should be given as `natural=reef` (wiki: https://wiki.openstreetmap.org/wiki/Tag:natural%3Dreef). I am correcting the edits.
Regards,
nammala -
Comment from Verdy_p
way 282484195 still has natural=yes that incorrectly replaced the previous correct value natural=reef
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Comment from Verdy_p
Note also that this the way for this reef is also used as a boundary line. If the reef is emerging, the way referenced by the boundary should still be natural=coastline.
In that case you'll need to create a one-member relation including that closed coastline way to tag the relation also as a natural=reef. (note: you cannot have two values for both natural=coastline and natural=reef, the extra relation however will permit it)
But given the size, I suspect it is possibly not really a reef but an islet (in that case don't create the second relation for the reef, just add place=islet: if it is permanently emerging, it is not a reef but effectively a piece of land, limited by its costline, even if the entire surface is rocky, but if you zoom in you'll easily see signs such as guano and small green tracks of vegetation; if it's submerged by tide, the vegetation should turn to algae, black, and there won't be white guano) and you should also see some brown/grey sand. Note that if this is a part of old volcano, the rock may be very dark, with black sand from eroded parts, and lighter sand/dust brought on the surface by winds.
It will be difficult to see where is the high tide level for the exact costline, except by the presence of algae all around. If this is an old volcanic chimney filled by solidifed lava forming a hard pike, all the scories around have been eroded by the sea and there's too much depth for allowing coral reef to develop.
If this is a coral recif, that should instead shown white with a flattened surface covered by white sand and with coco trees, browny remains of crabs (eaten by birds), and normally some arbustive vegetation in the sand/dust mixture. It's unlikely you'll see a beach given the orientation, except in a small part along the south-est, due to sea currents.
You need high resolution aerial view to check the status.
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Comment from Verdy_p
So i looked at aerial images, and it is clearly a submerged reef (and should not be a coastline (this makes doubts for including it in land boundaries (the 12 miles maritime boundary is elsewhere and enclose all islands and reefs, it starts normally from the coastline excluding reefs)
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Comment from Verdy_p
So I restored the natural=reef (should it still be part of boundaries ? I doubt this matches the definition of baselines across bays, that normally connect two points of actual land with a straight segment at a limited distance from the coastline, generally not more than about 50-100 meters from it)
Ways (5)
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