Chehalis

Chehalis

Predicted v. Observed Hazards
phi = 33°, B.D. = 2.0, Cohesion = 15 kN/m², T = 65 m
Model Q for Instability	count of landslides				Area within Basin (hectares)		slides per hectare
Model Q for Instability	Road Related	Not Road-Related/ indeterminate	Total		Area within Basin (hectares)		Road Related	Not Road-Related/ indeterminate	Total
Unstable	0	0	0		0.0		0.0000	0.0000	0.0000
0-50	60	21	81		259.3		0.2314	0.0810	0.3124
50-100	51	16	67		322.2		0.1583	0.0497	0.2079
100-200	64	19	83		661.8		0.0967	0.0287	0.1254
200-400	107	42	149		1464.6		0.0731	0.0287	0.1017
>400	174	54	228		9023.8		0.0193	0.0060	0.0253
Stable	14	7	21		6436.6		0.0022	0.0011	0.0033
Total	470	159	629		18168.2		0.0259	0.0088	0.0346

normalized by column, and in row of totals
Model Q for Instability	count of landslides				Area within Basin
Model Q for Instability	Road Related	Not Road-Related/ indeterminate	Total		Area within Basin
Unstable	0.00	0.00	0.00		0.000
0-50	0.13	0.13	0.13		0.014
50-100	0.11	0.10	0.11		0.018
100-200	0.14	0.12	0.13		0.036
200-400	0.23	0.26	0.24		0.081
>400	0.37	0.34	0.36		0.497
Stable	0.03	0.04	0.03		0.354
Total	0.75	0.25	1.00		1.000

Based on files:

celqust15c Mon Jul 1 15:52:15 1996
polqust15c Mon Jul 1 15:52:15 1996

Cell area (in hectares) is 0.090000

Table created by patrept Version 1.11