A Comparative Analysis of Hazard Models for Predicting
Debris Flows in Madison County, Virginia
By
Meghan M. Morrissey, Gerald F. Wieczorek, and Benjamin
A. Morgan Open-File Report 01-0067
2001
Click on an image for a 2X view.
Figure 6.Factor
of safety-depth curves demonstrating the effects of (A) soil cohesion, (B) initial
water table depth, and (C) hydraulic diffusivity after 4 hr (green lines) and
16 hr (blue lines) of rain infiltration.Unless
otherwise noted, the initial water table is 1 m, soil cohesion is 2 KPa, and
hydraulic diffusivity is 10-4 m/s for these calculations. Color curves
denote 4h (green); 8h (red); 12h (pink); 16h (blue) as labeled.