Geoscience Reference
In-Depth Information
Table 3.8 Basin geometry and composite ranking co-ef
cient value and instability analysis
Sub-
basin
Form
factor
(F)
Rank
Elon-
gation
ratio
®
Rank
Circularity
index (C)
Rank
Elipticity
index (E)
Rank
Compactness
co-efcient
(C
c
)
Rank
Length of
overland
flow (km)
Rank
Composite
rank
Instability
rank
1
0.12
6
0.39
1
0.3
1
6.76
1
0.62
5
0.15
3
17
5
2
0.4
3
0.71
4
0.55
3
1.97
4
1.06
2
0.13
5.5
21.5
3
3
0.45
2
0.76
5
0.77
6
1.72
5
0.63
4
0.13
5.5
27.5
1
4
0.36
4
0.68
3
0.54
2
2.17
3
1
3
0.15
3
18
4
5
0.25
5
0.56
2
0.68
4
3.09
2
1.09
1
0.15
3
17
6
6
0.52
1
0.81
6
0.69
5
1.5
6
0.51
6
0.16
1
25
2
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