Table 9 Water availability due to one tidal influx.

From: Introducing winter rice cropping by using non-saline tidal water influx in western basins of South 24 Parganas, India

Canal name

Hara Khal

Kulpi Khal

Diamond Harbour Creek

Kholakhali Khal

Upper Keorapukur Khal

C/S area before tide (m2)

74.29

50.66

186.13

68.54

5.24

C/S area after tide (m2)

123.08

98.84

309.73

121.06

7.94

Velocity (m/s)

2.42

2.36

2.40

1.99

0.42

Tidal discharge in the canals (m3/s)

118.06

113.70

296.65

104.52

1.13

Quantity of tidal water entering (Mm3)

2.13

2.05

5.35

1.88

0.02

Quantity of tidal water usable for irrigation in one tide per basin (Mm3)

4.17

5.32

1.88

0.02