Abstract
Abstract -The sedimentation is an effect of erosion on the catchment area of the reservoir and therefore, lesser the rate of erosion, smaller is the sediment load coming into the reservoir. Deposition of sedimentation in the reservoir moderately reduces the capacity of the reservoir. Both Dead storage capacity & live storage capacity gets affected due to sedimentation. Information about reduction in the storage capacity is important for the planning and operational purposes and the same can be obtained by sediment assessment surveys done at regular intervals. Various factors affect the process of erosion, transport and deposition of sediment in the reservoir. Type of soil, drainage density, vegetation, rainfall intensity and duration, shape of catchment and land use / land cover affect erosion. Sediment transportation totally depends upon slope of the catchment, channel geometry and nature of river bank and bed. Deposition is a function of bed slope of the reservoir, length of reservoir, flow patterns, inflow-outflow rates, grain size distribution, mode of reservoir operation etc Key Words: Ujani Dam, Sedimentation, Remote sensing
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