Chehalis

Chehalis

Predicted v. Observed Hazards
phi = 45°, B.D. = 2.0, Cohesion = 0, T = 65 m²/day
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	8	5	13		26.5		0.3023	0.1890	0.4913
0-50	113	30	143		375.9		0.3006	0.0798	0.3804
50-100	105	35	140		776.8		0.1352	0.0451	0.1802
100-200	117	28	145		1750.1		0.0669	0.0160	0.0829
200-400	54	21	75		1981.8		0.0272	0.0106	0.0378
>400	17	5	22		1029.9		0.0165	0.0049	0.0214
Stable	56	35	91		12227.2		0.0046	0.0029	0.0074
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	0.02	0.03	0.02		0.001
0-50	0.24	0.19	0.23		0.021
50-100	0.22	0.22	0.22		0.043
100-200	0.25	0.18	0.23		0.096
200-400	0.11	0.13	0.12		0.109
>400	0.04	0.03	0.03		0.057
Stable	0.12	0.22	0.14		0.673
Total	0.75	0.25	1.00		1.000

Based on files:

celqust45c Mon Jul 1 15:52:11 1996
polqust45c Mon Jul 1 15:52:11 1996

Cell area (in hectares) is 0.090000

Table created by patrept Version 1.11