Fig. 4: Frictional and Volumetric Controls on Debris Flow Trajectories.
From: Predicting debris flow pathways using volume-based thresholds for effective risk assessment
Control of volume, dry-Coulomb type friction and viscous-turbulent friction in determining the flow path of debris flow. a Debris flow with low release volume tend to follow flow direction and with high release tend to flow shortest distance. b Both type of debris flows have a wide range of dry-Coulomb type friction and cannot be divided based on dry-Coulomb type friction. c Viscous-turbulent friction has a wide range of values for SC-type following flow direction but narrow range for SH-type debris flow (Software used: R).
