Dam-induced hydrological alterations in the upper Cauvery river basin, India

Upper Cauvery river basin, India Reservoir construction is one of the major contributors to changes in natural flow regime characteristics. This study aims understand hydrological alterations resulting from reservoirs and water abstraction upper regions basin. The impacts dams on regimes where data available only for periods after assessed. A landscape-based model, FLEX-Topo, used model flows contributed by upstream downstream areas four area. separate reservoir operation developed each reservoirs. Next, integrated with modelled at streamflow gauging station corresponding sub-basins calibrated. without are then compared using indicators degree which have been altered results indicate that modified their state following impoundment abstractions. Significant observed median monthly flow, 1-day minimum low pulses. Such information could provide a reference managers replicate regimes, help sustain biota thus contribute toward sustainable management basins India.