Table 4 Seepage of the canals according to modified Kostiakov's equation.
Canal name | t (min) | h1 (cm) | h2 (cm) | K (cm/s) | P | A | m | s (%) | Seepage of canal (m3/s) |
|---|---|---|---|---|---|---|---|---|---|
Upper Keorapukur Khal | 250 | 40 | 35 | 4.15 × 10–7 | Low | 0.7 | 0.3 | 0.63 | 0.12 |
Hotor Khal | 600 | 40 | 36 | 9.48 × 10–8 | Low | 0.7 | 0.3 | 0.23 | 1.74 |
Suryapur Inner Channel | 18 | 50 | 33 | 1.24 × 10–5 | Low | 0.7 | 0.3 | 0.18 | 2.62 |
Usti Nainan Outfall Channel | 90 | 50 | 38 | 1.64 × 10–6 | Low | 0.7 | 0.3 | 0.14 | 3.26 |
Kata Khal | 48 | 50 | 32 | 5.02 × 10–6 | Low | 0.7 | 0.3 | 0.21 | 0.93 |
Sangrampur Khal | 80 | 50 | 42 | 1.17 × 10–6 | Low | 0.7 | 0.3 | 0.23 | 1.09 |
Joynagar Khal | 22 | 50 | 28 | 1.42 × 10–5 | Low | 0.7 | 0.3 | 0.22 | 0.5 |
Upper Dhanpota Khal | 75 | 40 | 25 | 3.38 × 10–6 | Low | 0.7 | 0.3 | 0.44 | 0.16 |
Hara Khal | 105 | 50 | 42 | 8.96 × 10–7 | Low | 0.7 | 0.3 | 0.19 | 2.75 |
Kulpi Khal | 130 | 40 | 36 | 4.37 × 10–7 | Low | 0.7 | 0.3 | 0.20 | 2.11 |
Upper Hatuganj Khal | 90 | 40 | 28 | 2.14 × 10–6 | Low | 0.7 | 0.3 | 0.48 | 0.06 |
Nazra Khal | 15 | 40 | 32 | 8.03 × 10–6 | Low | 0.7 | 0.3 | 0.34 | 0.13 |
Srichanda Khal | 178 | 40 | 34 | 4.93 × 10–7 | Low | 0.7 | 0.3 | 0.24 | 0.76 |
Dasani Khal | 175 | 50 | 38 | 8.47 × 10–7 | Low | 0.7 | 0.3 | 0.26 | 1.07 |
Diamond Harbour Creek | 25 | 40 | 25 | 1.01 × 10–5 | Low | 0.7 | 0.3 | 0.10 | 8.85 |
Kholakhali Khal | 95 | 40 | 35 | 7.59 × 10–7 | Low | 0.7 | 0.3 | 0.17 | 1.18 |
Lower Keorapukur Khal | 17 | 40 | 28 | 1.13 × 10–5 | Low | 0.7 | 0.3 | 0.25 | 1.06 |
Lower Hatuganj Khal | 30 | 40 | 22 | 1.07 × 10–5 | Low | 0.7 | 0.3 | 0.41 | 0.25 |
Adi Ganga Canal | 106 | 40 | 30 | 1.46 × 10–6 | Low | 0.7 | 0.3 | 0.26 | 1.17 |
Lower Dhanpota Khal | 145 | 40 | 34 | 3.38 × 10–6 | Low | 0.7 | 0.3 | 1.55 | 0.01 |
