A catchment of area 120 km2 has three distinct zones as below:
|
Zone |
Area (km2) |
Annual runoff (cm) |
|
A |
61 |
52 |
|
B |
39 |
42 |
|
C |
20 |
32 |
The annual runoff from the catchment is
1
126.0 cm
2
42.0 cm
3
45.4 cm
4
47.3 cm