VBET Attributes

[joewheaton]

Once a valley bottom is segmented (see Riverscapes/vbet#7), or a riverscape network is produced from that segmented valley bottom (see Riverscapes/vbet#8), it is possible to generate a variety of simple metrics (i.e. fields in attribute table), stacked profile or longitudinal plots of these (e.g. see https://riverscapes.github.io/NetworkProfiler/), or horizontal bar plots by reach.
Useful analyses in VBET would include:

• Integrated Valley Bottom Width (Valley Bottom segment area divided by VBET Network CL length)
• Valley CenterLine Length
• Change in VB Width from Upstream
• Change in VB Width to Downstream
• Proportion Active Channel (i.e. Proportion of Valley Bottom in your Channel class
• Proportion Active Floodplain (if mapped)
• Proportion of the threshold classes (e.g. 50%, 60%, 70%, 80%, 90%)
  I describe what we'll be doing with these here. In short, we need to map valley bottoms and then break them into active and non-functional components:
  

Even the current version is getting us close to some of these things:

[joewheaton]

@shelbysawyer and @philipbaileynar I am drawing your attention back to this.

[joewheaton]

Thank you all for this brain-storm. It is duplicative with:
#385
#395