Publication

Operation of Complex Hydropower Schemes and its Impact on the Flow Regime in the Downstream River System under Changing Scenarios

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Optimization of low-head hydropower recovery in water supply networks

Small scale hydropower is emerging as a decentralized source to satisfy local demand for electricity. The interest in micro-hydropower, which refers to installed power below 100 kW, is increasing since this is a solution with low environmental impact. Wate ...

EPFL2016

A conceptual framework for hydropeaking mitigation

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Hydropower plants are an important source of renewable energy. In the near future, high-head storage hydropower plants will gain further importance as a key element of large-scale electricity production systems. However, these power plants can cause hydrop ...

Elsevier Science Bv2016

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Michael Lehning, Wolf Hendrik Huwald, Ernesto Trujillo Gomez, Tristan Jonas Brauchli

Snowpack and especially its melt during spring is a crucial resource for water availability in mountainous regions. A better understanding of the processes and their representation in hydrological models is therefore necessary for different purposes, such ...

2016

Intervention strategies to mitigate hydropeaking: Two case studies from Switzerland

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Water retention in reservoirs and concentrated turbine operations allow electricity to be produced on demand. Sudden opening and closing of the turbines can produce highly unsteady flow conditions in the river downstream of the tailrace channel, the so-cal ...

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Talsperren und Speicher als lebenswichtige Infrastrukturanlagen für den weltweiten Wohlstand = Dams and Reservoirs as Vital Water Infrastructures Ensuring Worldwide Economic Prosperity

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History shows that the economic prosperity of a society and its cultural wealth was always closely related to the level of the development of the hydraulic schemes, including dams and reservoirs. In view of climate change, dams and reservoirs will and have ...

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The Zambezi River basin is the fourth largest in Africa. Covering an area of about 1 400 000 km2 that is shared among 8 countries, it is the home of over 30 million people. There are ample opportunities for development in the region, including on the hydro ...

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Anton Schleiss, Pedro Filipe De Almeida Manso, Mário Jorge Rodrigues Pereira Da Franca, Irene Almeida Samora

In water supply systems there is potential for hydropower production at several scales, from small hydro to micro. The energy recovery within the urban water supply networks is a type of micro-hydro that may be useful for the control of excessive pressures ...

2016

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Water supply networks in cities with sloping topography may have a considerable potential for the installation of micro hydropower plants. Since these water supply networks are complex systems with many constraints, the identification of the best locations ...

EPFL-LCH2016

Seasonality in cholera dynamics: A rainfall-driven model explains the wide range of patterns in endemic areas

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Seasonal patterns in cholera dynamics exhibit pronounced variability across geographical regions, showing single or multiple peaks at different times of the year. Although multiple hypotheses related to local climate variables have been proposed, an unders ...

2016

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Sediment-laden riverine floods transport large quantities of dissolved oxygen into the receiving deep layers of lakes. Hence, the water quality of deep lakes is strongly influenced by the frequency of riverine floods. Although flood frequency reflects clim ...

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