Chehalis

Chehalis

Predicted v. Observed Hazards
phi = 33°, B.D. = 2.0, Cohesion = 2 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	79	16	95		311.0		0.2541	0.0515	0.3055
0-50	180	55	235		1601.2		0.1124	0.0343	0.1468
50-100	94	39	133		1892.9		0.0497	0.0206	0.0703
100-200	68	22	90		2986.2		0.0228	0.0074	0.0301
200-400	30	14	44		2865.6		0.0105	0.0049	0.0154
>400	5	6	11		2074.8		0.0024	0.0029	0.0053
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	0.17	0.10	0.15		0.017
0-50	0.38	0.35	0.37		0.088
50-100	0.20	0.25	0.21		0.104
100-200	0.14	0.14	0.14		0.164
200-400	0.06	0.09	0.07		0.158
>400	0.01	0.04	0.02		0.114
Stable	0.03	0.04	0.03		0.354
Total	0.75	0.25	1.00		1.000

Based on files:

celqust2c Mon Jul 1 15:52:12 1996
polqust2c Mon Jul 1 15:52:12 1996

Cell area (in hectares) is 0.090000

Table created by patrept Version 1.11