Chehalis

Chehalis

Predicted v. Observed Hazards
phi = 33°, B.D. = 2.0, Cohesion = 8 kN/m², T = 65 m²
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	91	34	125		461.1		0.1974	0.0737	0.2711
50-100	65	16	81		538.0		0.1208	0.0297	0.1506
100-200	91	38	129		1230.0		0.0740	0.0309	0.1049
200-400	117	32	149		2562.9		0.0457	0.0125	0.0581
>400	92	32	124		6939.5		0.0133	0.0046	0.0179
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	0.19	0.21	0.20		0.025
50-100	0.14	0.10	0.13		0.030
100-200	0.19	0.24	0.21		0.068
200-400	0.25	0.20	0.24		0.141
>400	0.20	0.20	0.20		0.382
Stable	0.03	0.04	0.03		0.354
Total	0.75	0.25	1.00		1.000

Based on files:

celqust8c Mon Jul 1 15:52:14 1996
polqust8c Mon Jul 1 15:52:14 1996

Cell area (in hectares) is 0.090000

Table created by patrept Version 1.11