I have other problems with the understanding of the real meaning of some
parameters:
a) Highest top-width number of landslide mass,
b) middle top-width number of landslide mass,
c) lowest top-width number of landslide mass,
In particular it is not clear if they describe the geometry the landslide
mass could assume in the channel once it has failed or something else.
The "number" means a length in meters. And last, what about the "arrival time
elevation increase criterion" that is not specified in the user's manual ?

Best wishes.

Marco Masetti