I came across:

Floodplain and Meandering Research


Drainage Basin Simulation Studies

They might be of interest to someone who 1) knows what to do with data like this and 2) can understand some programming

I ran the provided windows binaries, and got output files, but in a raw format which I have no idea what to do with, or how even to view them graphically...

I particularly liked the sample of the meandering river in a floodplain:

-Rob A>