Chehalis

Predicted v. Observed Hazards
phi = 45°, B.D. = 2.0, Cohesion = 0, T = 65 mē/day
Model
Q for Instability
count of landslides Area
within
Basin
(hectares)
slides per hectare
Road
Related
Not Road-Related/
indeterminate
TotalRoad
Related
Not Road-Related/
indeterminate
Total
Unstable851326.50.30230.18900.4913
0-5011330143375.90.30060.07980.3804
50-10010535140776.80.13520.04510.1802
100-200117281451750.10.06690.01600.0829
200-4005421751981.80.02720.01060.0378
>400175221029.90.01650.00490.0214
Stable56359112227.20.00460.00290.0074
Total47015962918168.20.02590.00880.0346
normalized by column, and in row of totals
Model
Q for Instability
count of landslides Area
within
Basin
Road
Related
Not Road-Related/
indeterminate
Total
Unstable0.020.030.020.001
0-500.240.190.230.021
50-1000.220.220.220.043
100-2000.250.180.230.096
200-4000.110.130.120.109
>4000.040.030.030.057
Stable0.120.220.140.673
Total0.750.251.001.000

Based on files:

Cell area (in hectares) is 0.090000

Table created by patrept Version 1.11