Reservoir sedimentation
Research on reservoir sedimentation in recent years has been aimed mainly at water resources projects in developing countries. These countries, especially in Africa, often have to cope with long droughts, flash floods and severe erosion problems. Large reservoir capacities are required to capture water provided by flash floods so as to ensure the supply of water in periods of drought. The problem arising however is that these floods, due to their tremendous stream power, carry enormous volumes of sediment which, due to the size of reservoirs, are virtually deposited into the reservoir basin, leading to fast deterioration of a costly investment. Accurate forecasting of reservoir behaviour is therefore of the utmost importance. The point of view in this book is that of the water resources engineer who predicts the effect of sediment deposition on a reservoir and its immediate environment. Practical procedures to estimate sediment yield, calculate sediment profiles and assess the influence sediment retention has on the river downstream of a reservoir are presented. Preventative measures are also discussed. The approach adopted in this book is through illustrating theory with examples. The recent theory presented regards processes involved in the deposition of sediment in reservoirs.
- OSTI ID:
- 5907514
- Country of Publication:
- United States
- Language:
- English
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