Changeset: 86467703
Changed coastline to Pamlico Sound. Started aligning wetland with water to avoid overlapping.
Closed by Sparks
Tags
created_by | JOSM/1.5 (16538 en) |
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source | Esri World Imagery (Clarity) Beta; JOSM Validator |
Discussion
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Comment from ElliottPlack
Nice work on this project! Any interest in working more on the Chesapeake, removing it from the coastline? A newish mapper inadvertently broke part of your Eastern Bay relation and I've just finished fixing it. It makes me wonder if converting the whole thing to a water relation might make it easier to maintain.
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Comment from Sparks
We can. There are lots of areas in there that could be broken up and removed from the coastline markup. I'm assuming that would improve the time fixes would show up and further reduce the time it would take to render coastline.
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Comment from ElliottPlack
That's exactly right. That was the reason we started removing the smaller estuaries from the coastline, so edits to them would show up on the map in a timely fashion. It also helps with cognition of those bodies of water for what they are, instead of big blobs of nothing without a name.
I think the best way would be to start at the Potomac and then work outward, doing big rivers and sub-bays one at a time.
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Comment from ElliottPlack
Potomac is done. The coastal bays along the VA delmarva coast are insanly complex. https://www.openstreetmap.org/relation/11880156#map=11/38.2560/-76.7810
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Comment from Sparks
That was quick. I was just going to start looking at that. Yeah, the little bays along the Chesapeake are... complex. Want to take one side and I'll take the other?
Is there a better place to communicate than a changeset in NC? :)
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Comment from Joseph E
Re: "That was the reason we started removing the smaller estuaries from the coastline, so edits to them would show up on the map in a timely fashion”
I’m sorry that the coastline updating process is often broken. It’s unfortunate that managing the coastline polygons is complex and can often be stopped by mistakes around the world.
However, that is not a good reason for incorrectly mapping parts of the sea as natural=water, the tag for lakes and rivers. Pamlico sound is a coastal lagoon with salinity only a little lower than that of the open ocean: according to Wikipedia it’s 20 ppm instead of the 35 ppm of the open Atlantic. This is higher salinity than the Black Sea or the Baltic sea, which are clearly part of the sea. Pamlico sound has large passageways to the open ocean and is strongly influenced by tides and ocean water flow in from the open sea.
It is comperable to Galveston Bay which also has barrier islands, and is mapped with natural=coastline appropriately. Pamlico Sound is also comperable to the coastal waters of the northern Netherlands and NW Germany, which are mapped as being outside of the coastline (see openstreetmap.de where different colors clearly show the distinction - I’ve also worked on showing this on openstreetmap.org but the PR hasn’t been accepted yet).
- Joseph Eisenberg
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Relations (11)
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