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Analysis Study Research Paper | Water Resource Engineering | India | Volume 12 Issue 10, October 2023 | Rating: 5.1 / 10

A GIS-Based Analysis for Reservoir Sedimentation

Rajneesh Singh ^[2] | Dr. H. L. Tiwari | Dr. Kamal Singh

Abstract: A reservoir is an integral component of a water resources system with a designed life. Sedimentation is a major problem for a reservoir, it is not possible to stop the sedimentation process it could be controlled and some feasible measures could be adapted to minimize the sedimentation yield in a reservoir. Periodic evaluation of sediment deposition patterns and available capacity assessment plays an important role in water resources. Some conventional approaches such as hydrographic survey and inflow-outflow methods are available but are cumbersome, costly, and time-consuming. Due to the sedimentation process water spread area at various elevations keeps on decreasing, calculating the temporal change in the water spread area can be analyzed and an evaluation of the sediment deposition pattern could be done. In this study, a remote-sensing approach is adopted for the assessment of sedimentation. Multi-date remote sensing data (1RS-1B, L1SS II) provided information on the water-spread area of the reservoir, which is used for computing the sedimentation rate. The revised capacity of the reservoir between maximum and minimum levels is computed using the trapezoidal formula. The loss in reservoir capacity due to the deposition of sediments is computed.

Keywords: Sedimentation; sediment yield; GIS; remote sensing; reservoir capacity

Edition: Volume 12 Issue 10, October 2023,

Pages: 1057 - 1059