Table 4: Sedimentation rates for Chesa dam.
|
Survey |
Capacity (m3) |
Period in use (years) |
Sedimentation |
Annual sedimentation rate (%) |
|
|
(m3) |
(%) |
||||
|
1991 dam construction |
1,150,000 |
- |
- |
- |
- |
|
2003 hydrographic survey |
612,843 |
12 |
537,157 |
47 |
3.89 |
|
2016 hydrographic survey |
476,781 |
25 |
673,219 |
59 |
2.34 |
|
Remote sensing |
374,535 |
25 |
775,465 |
67 |
2.70 |