Author(s): Kartikeya Mishra; Hl Tiwari; Ankit Jain
Linked Author(s): H. L. TIWARI
Keywords: NDWI Reservoir capacity Satellite images Sediment
Abstract: Capacity investigations of reservoirs are vital to analyzing sedimentation and improved reservoir management based on realistic evaluation of accessible storage. Capacity analysis periodically provides data on sedimentation at different levels, reduction in storage, and available life of the reservoir. Traditional methods such as bathymetric surveys have drawbacks being tedious, complex, and expensive. On the other, the accessibility of superior resolution in the open environment avoids all these restrictions. The present work uses satellite images to assess the revised capacity of the Sarni reservoir in Madhya Pradesh, India. The Normalized Difference Water Index (NDWI) algorithm has been utilized to enhance the visualization of water pixels in satellite imagery. This analysis shows that 37.801 MCM of reservoir capacity has been depleted due to sediment deposition in the last 52 years. The reservoir has lost almost 34.25 % part of its storage volume from 1967 to 2019.
Year: 2025