Data for the manuscript "Revealing the Importance of Capillary and Collisional Stresses on Soil Bed Erosion Induced by Debris Flows"

The data uploaded include:

(1) Erosion profile - The erosion depth measured by using erosion columns and the calculated erosion rate for each test;

(2) Soil bed shear strength - The data compulsory for estimating the shear strength of the unsaturated soil bed;

(3) Flow-depth& velocity - Time series data about the flow depth (measured by an ultrasonic sensor) and velocity of the flow (extracted using the PIV technique) at the interface between the non-erodible and erodible beds;

(4) Flow depth & pore pressure - Time series data about the flow depth (measured by an ultrasonic sensor) and the pore water pressure (measured by a pore pressure transducer.