freebeer, what is the source of data for the Agua Caliente reservation? I'm having trouble confirming it. Compare: http://www.aguacaliente.org/content/Geospatial%20Information%20Systems/

My guess is that this changeset was an honest misunderstanding, but I will have to investigate further.

Re: "not accepted by the Indonesian community." Are you in Indonesia? I do not normally hear much from other local mappers here in Papua. Is there something in particular that looks incorrect? I checked maxar imagery, but it was rather low-resolution so there might be mistakes.

> What are you fixing here?
I was moving the coastline to be closer to the mean high tide line, which is the generally accepted definition of natural=coastline in Openstreetmap. In areas with extensive mangroves this can be hard to map precisely, so I usually try to get the coastline at the edge of the mangroves, which grow in salt water. See waterway=tidal_channel (approved proposal:

The coastline had previously been moved in this section by a non-local mapper, who was trying to fix it after it was accidentally broken.
I moved it back, and adjusted some areas where there is now better aerial imagery, though more work is still needed. Lots of areas in West Papua are only coursely mapped, so please feel welcome to improve the alignment of the coastline if you have time.

"This results in coastline, land polygon, and water polygon artifacts to consider this large body of water extending up to Buenos Aires to be land rather than water."

That's not quite correct. What happens is that the coastline is only used once a day to update the ocean polygon shapefiles, which are used to render the ocean on the "standard" map layer of openstreetmap.org, the Openstreetmap-carto style.

But to avoid this problem from occuring in the short term, I suggest this compromise:

1) Extend the coastline up above Buenos Aires
But
2) Do not delete the currently tagged riverbank/natural=water area which represents the estuary of the Rio de la Plata.

This way, the Rio de la Plata will still be represented as a river (estuary) in Openstreetmap, and the coastline will be at a more reasonable location.

- Joseph Eisenberg

I checked Rocks and Islands Wilderness Area - It's actually duplicated in 2 different relations, both relation/6190582 (last edited 5 months ago) and relation/10572994 (from my changeset - previously it was a closed way that also duplicated the same relation), so I will delete my duplicate.

I'll check through the rest of it, but so far JOSM isn't finding any new errors. (Too late to revert, there have been other changes in the meantime).

I used JOSM to validate all the data in this county and corrected many errors with bad multipolygon relations and boundary relations and unconnected waterways, so yes, it was a complex changeset. I suppose I could have broken it up into smaller parts, but since many of the errors were single duplicate nodes that connected 2 ways, I had to edit a large number of ways to fix a few hundred duplicated waterway nodes. This is a common problem in data that was imported from the NHD (national hydrological database) unfortunately. If there are any feature left without tags please let me know; I will go and check the validator again now, but I thought I already fixed these (I had some internet connection problems last night while uploading this which might have lead to temporary problems).
Re: deprecated tags, are you talking about waterway=riverbank? That tag isn't deprecated and I like it better than natural=water + water=river since it is just one tag instead of 2.

This was a week ago, but I believe the coastline I added was coarse (not very fine) due to using fairly low-resolution Bing imagery. But since then I have been refining the coastline using higher resolution ESRI imagery, so most of it should be acceptable quality now.

I tried to fix it, but there have now been edits by several other user accounts and the coastline is now a mess in this area. Please coordinate with @mrlanduse and @辽宁号航空母舰 and @Alhamdulillah to work together on fixing this, since if we keep overlapping our edits it gets very complicated to fix.

I use an expensive satellite internet connection (No fiberoptic or coaxial cable to my part of Papua) so it's hard for me to keep up.

Incorrect tagging is common, sure. But mangroves are more like areas of the Puget Sound with tidal flats and eelgrass: the surface is often covered by seawater at high tide. If you look at the San Francisco Bay, we do not put the coastline at the Golden Gate, even though the whole bay is an estuary.

Thank you for helping out here in New Guinea (I live on the Indonesian side of the island). Certainly the edges of the tidal channels and mangroves in this area could be improved: I believe they were drawn mainlly from old Landsat imagery several years ago, and the newer Maxar and ESRI aerial imagery is much better and more recent.
If you are going to redraw the whole coastline, please work on this in JOSM until it is complete enough to be uploaded in a stable, usable condition. If the coastline is broken badly here, it can prevent the coastline shapefiles for the whole globe from updating until it is fixed.
You might be interested in learning more about tidal channels, especially if you don't live in an area with mangroves: waterway=tidal_channel
And mangroves: wetland=mangrove
(If you have time to map the vegetation, most of the "islands" along the coast here are mangrove wetlands which could be tagged with natural=wetland + wetland=mangrove, though sometimes the aerial imagery is not good enough to distinguish the dividing line between mangroves and tropical swamps on the inland side)

Note that many of the things that look like "rivers" here are actually tidal channels, which should not be tagged as riverbanks or natural=water because they are part of the sea.

thank you for helping out here in New Guinea (I live on the Indonesian side of the island). Certainly the edges of the tidal channels and mangroves in this area could be improved: I believe they were drawn mainlly from old Landsat imagery several years ago, and the newer Maxar and ESRI aerial imagery is much better and more recent.
If you are going to redraw the whole coastline, please work on this in JOSM until it is complete enough to be uploaded in a stable, usable condition. If the coastline is broken badly here, it can prevent the coastline shapefiles for the whole globe from updating until it is fixed.
You might be interested in learning more about tidal channels, especially if you don't live in an area with mangroves: waterway=tidal_channel
And mangroves: wetland=mangrove
(If you have time to map the vegetation, most of the "islands" along the coast here are mangrove wetlands which could be tagged with natural=wetland + wetland=mangrove, though sometimes the aerial imagery is not good enough to distinguish the dividing line between mangroves and tropical swamps on the inland side)

I'm confused by the changes to the coastline. What is the goal here? Right now a number of islands are missing and the coastline is in the wrong place by many kilometers.

What are you doing to the coastline here?

mrlanduse, are you sure that you didn't accidentally delete some of the islands here in this changeset? There are some problems now.

I think there are some problems going on with the coastline here. Another user was plannign to redraw everything but ended up deleting a bunch of islands here. I tried to fix it, but it looks like there are some editing conflicts now.

Some of the boundary lines (like the edges of the national forests) are based off of public domain USGS maps, but the vegetation and landuse are based off of Bing aerial imagery and my knowledge of the area from living nearby in the past. I did this over a year ago when I was a new user, so it might need improvement, if there is now better aerial imagery or Forest Service maps available.

OK, thank you for helping out here in New Guinea (I live on the Indonesian side of the island). Certainly the edges of the tidal channels and mangroves in this area could be improved: I believe they were drawn mainlly from old Landsat imagery several years ago, and the newer Maxar and ESRI aerial imagery is much better and more recent.

If you are going to redraw the whole coastline, please work on this in JOSM until it is complete enough to be uploaded in a stable, usable condition. If the coastline is broken badly here, it can prevent the coastline shapefiles for the whole globe from updating until it is fixed.

You might be interested in learning more about tidal channels, especially if you don't live in an area with mangroves: waterway=tidal_channel

And mangroves: wetland=mangrove

(If you have time to map the vegetation, most of the "islands" along the coast here are mangrove wetlands which could be tagged with natural=wetland + wetland=mangrove, though sometimes the aerial imagery is not good enough to distinguish the dividing line between mangroves and tropical swamps on the inland side)

The coastline should be at the high tide line. While it is somewhat unclear where this should be in river deltas, this area includes large sections of mangroves which grow out in the marine environment, in salt water. The salt water tidal channels between them are clearly outside of the coastline. Please don't move the coastline out to an arbitrary postion in the sea.

Bangunan2 ini salah - sepertinya vandalism (kerusakan). :-(

Nurmianti,
Apakah ada rencana untuk memperbaiki gedung-gedung di sini? Ada banyak yang belum digambar, dan yang sudah digambar bisa diperbaiki supaya lebih rapi dan persegi.