Hi Josh,
First: the wiki - I was planning to document the data once we had a
final download location, either an official-ish OSM server or anything
else we come up with. I will update the wiki page once we know where
the data will live
I've also looked at the data, and I must say I'm confused! One river
is represented in the flh file as waterway=stream, in arhi as
waterway=riverbank, in flmd as waterway=stream (but with worse spatial
accuracy than flh), and then in armd as waterway=riverbank!
Right - there are two resolutions in the NHD extracts the USGS sent me,
medium and high. I am stripping out the medium res ones per Ian's
comments, which will make things more consistent.
I suppose
one of the waterway=stream's should be changed to waterway=river, and
only one of the waterway=riverbank objects should be used.
Well, only one of the _layers_ should be used, e.g. all high or all
medium, Ian saying all high. Whether the waterway should be stream or
river, I defer to others who have deep insights or strong opinions on
such things; these extracts are based on a conversion key built by others.
Is this really what the NHD data is like? It will take more time than
I thought to properly merge these these 6 or 7 layers.
Well, once it's only high res, it's 5 layers that are spatially consistent.
cheers
ben
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