This study explores how flood travels down stairways into underground spaces by combining physical experiments with numerical simulations. Physical experiments were conducted to measure the depth and
NCALM Seed Project. PI: Mariela Perignon, University of Colorado. The areas of interest are defined by three rectangular polygons with areas of 11.336, 13.281, and 16.052 km 2 . The polygons
Experimental flash flood data was collected over wet bed and dry bed conditions using ADV at the University of Texas Austin in department of geological sciences. Analysis of bed shear stress was given
List of Supplemental Tables Table S1. Average water depth and average turbulent velocities in all experimental runs. Table S2. Calculation of bed shear stress for the Sf -n(t), Sf -n constant, Sf –wat