• The infinite plane slope stability model with wetness (pore pressure) obtained from a topographically based steady state hydrology model has been used to map terrain stability (e.g. Montgomery and Dietrich, 1994, WRR p1153)

Here we introduce

• Uncertainty in parameters. Stability is quantified analytically in terms of probability of instability over uniform distributions for parameters between specified bounds.
• Interactive calibration methodology implemented as an extension to ArcView, named SINMAP, available from https://hydrology.usu.edu

Slide 2 of 14