Table 3 Calculations of floods hazard index (FHI) of each basin
Relationship with hazard degree | Parameters (P) | Maximum measured value (Xmax) | Minimum measured value (Xmin) | Proposed parameter weight (W) | Flood hazard index (FHI) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basin no. 1 | Basin no. 2 | Basin no. 3 | Basin no. 4 | Basin no. 5 | Basin no. 6 | Basin no. 8 | Basin no. 10 | Basin no. 11 | Basin no. 12 | |||||
Proportional | A | 1056 | 19 | 15 | 0.67 | 1.18 | 5.19 | 15.00 | 1.46 | 0.74 | 0.47 | 0.30 | 0.27 | 0.28 |
SI | 25.36 | 9.14 | 15 | 6.76 | 6.74 | 7.42 | 7.68 | 13.09 | 5.40 | 13.81 | 11.07 | 15.0 | 12.9 | |
D | 3.17 | 2.2 | 7.5 | 7.48 | 7.27 | 5.80 | 5.21 | 5.98 | 7.50 | 6.44 | 7.01 | 5.5 | 5.61 | |
F | 4.42 | 3.58 | 7.5 | 6.51 | 6.73 | 6.73 | 6.12 | 6.94 | 6.32 | 6.20 | 7.50 | 6.08 | 6.82 | |
Ish | 0.43 | 0.09 | 5 | 3.67 | 4.02 | 4.37 | 4.98 | 4.55 | 2.86 | 3.15 | 4.60 | 1.05 | 2.8 | |
Rn | 4.44 | 0.95 | 7.5 | 1.61 | 3.47 | 7.50 | 6.14 | 4.38 | 2.82 | 3.42 | 1.98 | 2.89 | 1.8 | |
Rt | 18.24 | 1.67 | 5 | 1.27 | 1.56 | 3.21 | 5.00 | 1.95 | 1.13 | 0.99 | 1.15 | 0.48 | 0.8 | |
Inverse | Av | 73.46 | 3.06 | 5 | 0.42 | 0.24 | 0.24 | 0.21 | 0.48 | 0.37 | 1.00 | 1.78 | 2.8 | 5 |
WMRB | 6.87 | 4.06 | 15 | 15.00 | 13.81 | 14.00 | 12.98 | 14.36 | 12.82 | 11.54 | 14.00 | 8.87 | 14.52 | |
SLD | 0.3835 | 0.001 | 5 | 0.10 | 0.03 | 0.01 | 0.02 | 0.01 | 0.10 | 0.02 | 5.00 | 0.01 | 5 | |
Lo | 0.227 | 0.158 | 7.5 | 7.50 | 7.28 | 5.81 | 5.21 | 5.99 | 7.50 | 6.45 | 7.02 | 5.51 | 5.62 | |
Si | 1.59 | 1.15 | 5 | 4.36 | 3.62 | 3.83 | 4.43 | 3.98 | 4.59 | 4.47 | 4.91 | 5 | 4.96 | |
Total | 100 | 55.3 | 55.9 | 64.1 | 73.0 | 63.2 | 52.2 | 58.0 | 66.3 | 53.5 | 66.2 | |||
Hazard degree | Low | Low | High | Very high | High | Low | Moderate | High | Low | High | ||||