<div dir="auto"><p dir="ltr">Hi all</p>
<p dir="ltr">I've been doing quite a bit of stream and catchment delineation from lidar lately for some capability demonstration / bizdev projects / fun cartography. This next bit is probably preaching to the converted, however I haven't seen it discussed...</p>
<p dir="ltr">Something to remember is that strahler order often used to make "bigger streams" is a measure of connectivity rather than importance. Like, a significant stream can have the same strahler order as a tiny trickle. In <a href="http://waterwaymap.org">waterwaymap.org</a>, it looks like this happens a bit (sudden jumps in stream width etc). Having said that I haven't looked into how the widths are computed.</p>
<p dir="ltr">A possibly obvious contribution is that streams from a 10m DTM will be different from streams made with a 2m DTM. I also wonder if computing stream power (or some related metric) might also help? Thinking about rendering in terms of how much water might come here.</p>
<p dir="ltr">HTH. All sounds great, I just haven't been brave enough to change river locations in OSM yet!</p>
<p dir="ltr">Cheers, </p>
<p dir="ltr">Adam</p></div>