Over the last two decades environmental hydraulics as an academic discipline has expanded considerably, caused by growing concerns over water environmental issues associated with pollution and water balance problems on regional and global scale. These issues require a thorough understanding of processes related to environmental flows and transport phenomena, and the development of new approaches for practical solutions. Environmental Hydraulics includes about 200 contributions from 35 countries presented at the 6th International Symposium on Environmental Hydraulics (Athens, Greece, 23-25 June 2010). They cover the state-of-the-art on a broad range of topics, including: fundamentals aspects of environmental fluid mechanics environmental hydraulics problems of inland, coastal and ground waters interfacial processes; computational, experimental and field measurement techniques ecological aspects, and effects of global climate change. Environmental Hydraulics will be of interest to researchers, civil/environmental engineers, and professional engineers dealing with the design and operation of environmental hydraulic works such as wastewater treatment and disposal, river and marine constructions, and to academics and graduate students in related fields.

Coastlines, like many things around us, are constantly evolving. Keeping pace with the changes and their development is necessary to ensure their stability and to maintain eco-equilibrium for nearshore hydrodynamics and morphodynamics. Supported with field measurements for model validation, several numerical and analytical tools are available to us to understand the physical processes in the vicinity of these water bodies.This book encompasses the engineering principles involved in field data observation, measurement, collection, and processing; the prediction of wave climate and sediment transport using measured field data; numerical modelling involving calibration and validation of the hydrodynamic and morphodynamic processes; and the study of the underlying physical processes and the application of sustainable engineering measures to combat coast- and estuary-related problems.The book has three sections: The first section is an elaboration on the need for and framework of the existing management and engineering notions. The second section details the measurement of the various parameters such as wave climate (offshore and nearshore), shoreline changes, beach profile variation, and sediment transport rates. The third section describes the aspects of wave prediction to arrive at design characteristics and modelling of the hydrodynamic and morphodynamic processes along open coasts and tidal inlets.This book is designed to benefit students pursuing coastal engineering as their field of specialization. It could also serve as a guidebook to engineers, planners, and decision makers working in the fields of coastal, estuarine, and harbour engineering, governmental and private agencies that plan the financial outlay for coastal development projects, and private consultants dealing with maritime hydraulics.

Since its construction in the early 1960s, the hydroelectric Akosombo Dam across the Volta River has exemplified the possibilities and challenges of development in Ghana. Drawing upon a wealth of sources, A Dam for Africa investigates contrasting stories about how this dam has transformed a West African nation, while providing a model for other African countries. The massive Akosombo Dam is the keystone of the Volta River Project that includes a large manmade lake 250 miles long, the VALCO aluminum smelter, new cities and towns, a deep-sea harbor, and an electrical grid. On the local level, Akosombo has meant access to electricity for people in urban and industrial areas across southern Ghana. For others, Akosombo inflicted tremendous social and environmental costs. The dam altered the ecology of the Lower Volta, displaced 80,000 people in the Volta Basin, and affected the livelihoods of hundreds of thousands of Ghanaians. In A Dam for Africa, Stephan Miescher explores four intersecting narratives: Ghanaian debates and aspirations about modernization in the context of decolonization and Cold War; international efforts of the US aluminum industry to benefit from Akosombo through cheap electricity for their VALCO smelter; local stories of upheaval and devastation in resettlement towns; and a nation-wide quest toward electrification and energy justice during times of economic crises, droughts, and climate change.