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Applied Water Science

pp 1–14

First Online: 19 October 2016Received: 25 July 2015Accepted: 05 October 2016


Application of simulation model HEC-5 to analyze the performance of the DVC Reservoir System a multipurpose system with a network of five reservoirs and one barrage on the river Damodar in Eastern India in meeting projected future demand as well as controlling flood for synthetically generated future scenario is addressed here with a view to develop an appropriate strategy for its operation. Thomas-Fiering model based on Markov autoregressive model has been adopted for generation of synthetic scenario monthly streamflow series and subsequently downscaling of modeled monthly streamflow to daily values was carried out. The performance of the system analysed on seasonal basis in terms of ‘Performance Indices’ viz., both quantity based reliability and time based reliability, mean daily deficit, average failure period, resilience and maximum vulnerability indices for the projected scenario with enhanced demand turned out to be poor compared to that for historical scenario. However, judicious adoption of resource enhancement marginal reallocation of reservoir storage capacity and demand management strategy curtailment of projected high water requirements and trading off between demands was found to be a viable option for improvement of the performance of the reservoir system appreciably improvement being 1–51 %, 2–35 %, 16–96 %, 25–50 %, 8–36 % and 12–30 % for the indices viz., quantity based reliability, time based reliability, mean daily deficit, average failure period, resilience and maximum vulnerability, respectively compared to that with normal storage and projected demand. Again, 100 % reliability for flood control for current as well as future synthetically generated scenarios was noted. The results from the study would assist concerned authority in successful operation of reservoirs in the context of growing demand and dwindling resource.

KeywordsReservoir performance HEC-5 model DVC reservoir system Thomas-Fiering model  Download fulltext PDF

Autor: Satabdi Saha - Debasri Roy - Asis Mazumdar


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