OSM River Basins

It does have some problems. The upper McKenzie River in Oregon is shown as separate drainage since there is a break in the river. There are multiple sections in that area that are separate. Bigger one is that the Columbia River is split at McNary Dam.

I'm not sure what needs to be fixed in OSM.

Maybe it needs to detect dams. Or rivers that don't end in the ocean or endoheric lake.

More info: https://github.com/amandasaurus/osm-river-basins

It's missing man made channels. Some natural waterways end in a channel which ends in another natural waterway. All of three should be connected but the channel in between breaks the connection and the channel is not marked on the map. Probably the first waterway ended up into another natural one before men made the channel, because water flows no matter what.

A 30 seconds look at river basin connectivity around a place I know gives me plenty of JOSM fodder - highly efficient visualization !

That's beautiful. I'm impressed we can compute related components on a world map so fast. The interconnections everywhere are beautiful. If this data is reliable, you can go from west europe to east china with just 3 changes (largely helped by canals)

It makes me want to make a remotely (4G) controllable solar-powered tiny boat, and see how far I can drive it, though this map lacks the unreachable discontinuities (dam)

A map (and the data) of river drainage basins (American: watersheds) would also be interesting.

Hi! I'm the creator of this tool! I'm open to more feedback, and suggestions. Even related views.

Lots of people discovering OSM through this, which is great. This sort of tool is new, so we're all just fixing up lots of little tagging & topology mistakes which were hard to spot.

follow me on fedi/masto for more news: <https://en.osm.town/@amapanda/>

In the American southwest, the map shows a dense network of waterways around Farmington NM, and extending roughly 100 miles E-W and 150 miles N-S, and a similar but smaller region between the Colorado river and the four corners. I would guess that this is an artifact of mapping, as the area is pretty arid, and perhaps a consequence of these being largely Navajo, Apache and Ute lands.

Is there a connection between Rhine and Rhone somewhere? I always get the same color for them. Weird.

Interesting to be able to see many waterways being extremely tightly wound and others straightforward over long distances. I wonder if it's an issue of data resolution or actual geography.

Nice but it definitely needs to support waterway=stream as well.