We seek the upslope-most points that meet all
criteria.
We further require that “channel-indicative”
topography persist along a flow path for some specified
distance (e.g., at least 30m).
Too short
OK
We’re finding that
we cannot resolve all channel initiation sites, even with 1-m LiDAR. For
example, channels that appear within wetlands don’t have much topographic
signature. So we added the ability to specify specific channel initiation
points using a point shapefile.