Capacity assessment of Ekburji reservoir using remote sensing

Civil Engineering

The capacity assessment of reservoir is required periodically to determine the useful life of a reservoir due to accumulation of sediments. The conventional method of reservoir capacity survey like theodolite, sextant, sounding rods, echo-sounders and slow-moving boats etc. is laborious, time consuming and costly in comparison to the capacity survey based on satellite remote sensing techniques. The water-spread area of the reservoir reduces with the sedimentation at a given level and this fact is utilized in estimation of reservoir capacity. In satellite remote sensing survey, water-spread area at the time of satellite pass is mapped and used to calculate the incremental reservoir capacity between two levels. With this objective, the present study of the assessment of the sedimentation in Ekburji reservoir is carried out using remote sensing. For that purpose, two satellite images of LISS III and three images of LISS IV of Resource Sat-2 and IRS P-6 satellite are procured from National Remote Sensing Centre along with field data from irrigation department of Ekuburji project and visual interpretation, unsupervised classification of satellite imageries is done using ERDAS IMAGINE 9.3 software to calculate water spread area at Resource Engineering Centre, Nashik. Water spread area will further used to calculate cumulative capacity between different water levels within FRL and MDDL. Results of this survey will further used to compare surveys that will be carried out in future.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.