Table 7 Watershed parameter analysis
From: Flood risk analysis: causes and landscape based mitigation strategies in Dire Dawa city, Ethiopia
Watershed | Area (km2) | Perimeter(km) | Basin length (km) | Drainage density (Km/km2) | stream frequency |
|---|---|---|---|---|---|
1 | 10.7 | 22.6 | 5.04 | 0.54 | 0.37 |
2 | 17.9 | 38.8 | 6.75 | 1.05 | 1.01 |
3 | 3.6 | 16.4 | 2.72 | 0.95 | 1.94 |
4 | 77.8 | 92.5 | 15.56 | 1.06 | 0.57 |
5 | 95.7 | 97.3 | 17.50 | 1.05 | 0.72 |
6 | 7.7 | 18.8 | 4.18 | 0.56 | 0.91 |
7 | 44.6 | 53.3 | 11.35 | 1.16 | 0.58 |
8 | 10.5 | 22.6 | 5.00 | 1.02 | 0.85 |
9 | 29.6 | 56.5 | 8.98 | 1.01 | 0.68 |
10 | 39.3 | 51.8 | 10.60 | 0.98 | 0.66 |
11 | 3.7 | 17.9 | 2.76 | 1.19 | 0.81 |
12 | 6.6 | 24.0 | 3.84 | 1.29 | 0.60 |
13 | 21.1 | 32.8 | 7.42 | 1.10 | 0.66 |
14 | 17.8 | 30.9 | 6.72 | 1.03 | 0.51 |
15 | 20.4 | 31.9 | 7.28 | 0.84 | 0.78 |
16 | 10.4 | 21.4 | 4.97 | 0.96 | 0.77 |
17 | 25.7 | 39.5 | 8.30 | 0.89 | 0.78 |
18 | 78.1 | 69.9 | 15.59 | 0.89 | 0.58 |
19 | 5.5 | 15.1 | 3.45 | 2.44 | 4.74 |
20 | 39.2 | 42.1 | 10.55 | 0.88 | 0.54 |
21 | 33.8 | 39.5 | 9.69 | 1.03 | 0.74 |
22 | 38.3 | 47.5 | 10.41 | 0.99 | 0.68 |
23 | 30.4 | 39.1 | 9.12 | 0.93 | 0.63 |
24 | 13.3 | 27.0 | 8.54 | 0.93 | 0.38 |
25 | 14.3 | 24.6 | 5.94 | 0.84 | 0.63 |
26 | 2.4 | 13.8 | 2.14 | 1.58 | 1.27 |