The historical range of the Indus River dolphin has declined by 80% since the 19th century and has been fragmented into 17 river sections by construction of irrigation barrages. Dolphin sighting and interview surveys showed that river dolphins persist in six river sections, have…
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This open access book presents a series of complicated hydraulic phenomena and related mechanism of high-speed flows in head-head dam. According to the basic hydraulic theory, detailed experiments and numerical simulations, microscopic scale analysis on cavitation bubbles, air b…
This open access book presents a series of complicated hydraulic phenomena and related mechanism of high-speed flows in high-head dam. According to the basic hydraulic theory, detailed experiments and numerical simulations, microscopic scale analysis on cavitation bubbles, air b…
Why are adivasis fighting the Narmada dam and other development projects in India today? Are adivasis 'ecologically noble savages' living in harmony with nature? What is the tribal relationship with nature today? How do people, whose struggles are the subject of theories of libe…
Beavers have been described as a “keystone species” and “ecosystem engineers”, and in this dual role have great potential to physically modify their environment through tree-felling, foraging and construction activities. The resultant change in habitat heterogeneity can affect t…
This book aims to inform policy-makers, engineers and earth scientists about the current and emerging role of geophysics in addressing environmental processes, assessments, and policy directions related to new and existing dams and levees. Until now geophysics has concentrated o…
Le phénomène d’interaction sol-structure est très important pour la modélisation des systèmes barrage-fondations et doit, généralement, être réalisé dans le domaine du temps lorsque l’on souhaite prendre en compte les phénomènes non-linéaires pouvant se développer durant un séis…
In the contiguous United States (CONUS), there are over 52,000 reservoirs ranging from 0.5 to 243 meters high. Collectively they hold 600,000 MCM of water. These structures have dramatically affected the river dynamics of every major watershed in the country. The operations of t…
Reservoir sedimentation is a serious threat to the long-term economic development of countries around the world. Often, upstream soil erosion due to agricultural activity contributes significantly to the problem. Appropriately designed soil conservation practices and reservoir s…
By the 1950s, big dams had become the leading technology for water resources development in the world. Today, opposition erupts against virtually every big darn project proposed or under construction. And since the 1970s—despite being promoted by a range of transnationally allie…
In the last half century, there has been a remarkable expansion in the rate and scale of dam construction worldwide. Many of these dams have been successful in providing various economic benefits. However, reservoir sedimentation decreases useful capacity of dams, shortens their…
In zoned dams, it is expected that pore pressure is uniformly dissipated from the upstream to the downstream side of the core. Based on this hypothesis, the potential profile across the core in a steady state seepage flow is expected to be more or less linear and the equipotenti…