Flow and Bed Conditions Jointly Control Debris‐Flow Erosion and Bulking

Debris flows can grow greatly in size and hazardous potential by eroding bed bank materials. However, erosion mechanisms are poorly understood because debris complex hybrids between a fluid flow moving mass of colliding particles, erodibility varies events, field measurements hard to obtain. Here, we identify the key controls on debris-flow based data set that combines information properties, conditions, erosion. We show conditions wetness jointly control Flow describing cumulative forces exerted at during an event best explain Shear particle-impact strongly correlated act conjunction process. A shear-stress approach accounting for may therefore be applicable modeling predicting This work provides foundation developing effective models.