Search

In India, many major and medium reservoirs have been constructed to meet the fast-growing demands of irrigation, hydropower generation, drinking and industrial water supply. To achieve social and economic sustainability in water scarce areas, it is vital to efficiently manage available water resources. Indeed, water resources systems are complex and require systematic study to facilitate optimal planning and management decisions. The present study supports the strategies designed to check the deficit in water availability for Indira Sagar Reservoir system in Madhya Pradesh, India, using a novel approach of standard PSO combining two variants, elitism and variational parameters, namely a time-variant elitist mutation multi-objective particle swarm optimization (TV-EMMOPSO). The performance of the proposed algorithm is compared with the optimal operation policies developed by multi-objective particle swarm optimization (MOPSO) and elitistmutation particle swarm optimization (EM-MOPSO). The results obtained can help the managers of Indira Sagar Reservoir plan better strategies in future. [ABSTRACT FROM AUTHOR]

Abstract: This paper presents a simulation model for the operation of multipurpose multireservoir systems. The simulation model developed in this study has been applied to the Narmada River Reservoir System in India. The model has been formulated for the monthly operation of reservoirs to meet industrial, domestic, irrigation, and hydropower generation water requirements. The simulation model consists of four modules: inflow generation, minimum flow releases, simulation, and performance evaluation. The single-site Thomas–Fiering and multisite Lane''s Applied Stochastic Techniques (LAST) inflow generation models have been used for the generation of a monthly inflow series. Five performance indicator indices have been formulated for evaluating the performance of the multipurpose multireservoir system: Volume Reliability Index (VRI), Time Reliability Index (TRI), Hydropower Production Index (HPI), Economic Benefits Index (ECBI), and Spill Prevention Index (SPPI). The trade-offs between the performance indicator indices have been obtained using the simulation model. The results from these trade-offs will assist decision makers in the operation of reservoirs, as well as with planning and comparing operation strategies. [Copyright &y& Elsevier]

Streamflow appraisal in time and space particularly in semi arid and dry sub humid regions has vital importance in the formulation of round the year plan of water uses comprising domestic & industrial water supply, irrigation scheduling, reservoir operation, in-stream flow maintenance etc. Drought severity analysis including the estimation of flow availability, drought duration, and deficit volume etc. was carried out using the 20-42 years (1960-2001) 10-daily streamflow data of five sites on the Betwa River system and. independent streamflow drought events were described by pooling the data, and severity of an independent drought event classified using a new drought severity index (DSIe) defined as a function of (1) the ratio of deficit flow volume to corresponding volume at the truncation level and (2) the ratio of duration of deficit flow to the maximum possible duration of the independent streamflow drought event. The study found that the upper reaches of river course were more prone to severe droughts than were the lower reaches. The drought events starting during August-November were more likely to be severe drought events than those in the other months. [ABSTRACT FROM AUTHOR]