Most complex physical phenomena can be described by nonlinear equations, specifically, differential equations. In water engineering, nonlinear differential equations play a vital role in modeling physical processes. Analytical solutions to strong nonlinear problems are not easily tractable, and existing techniques are problem-specific and applicable for specific types of equations. Exploring the concept of homotopy from topology, different kinds of homotopy-based methods have been proposed for analytically solving nonlinear differential equations, given by approximate series solutions. Homotopy-Based Methods in Water Engineering attempts to present the wide applicability of these methods to water engineering problems. It solves all kinds of nonlinear equations, namely algebraic/transcendental equations, ordinary differential equations (ODEs), systems of ODEs, partial differential equations (PDEs), systems of PDEs, and integro-differential equations using the homotopy-based methods. The content of the book deals with some selected problems of hydraulics of open-channel flow (with or without sediment transport), groundwater hydrology, surface-water hydrology, general Burger’s equation, and water quality. Features: Provides analytical treatments to some key problems in water engineering Describes the applicability of homotopy-based methods for solving nonlinear equations, particularly differential equations Compares different approaches in dealing with issues of nonlinearity

Water Use Management, and Planning in the United States is designed with new college classes on water resources in mind. It provides information on hydrology, biology, geology, economics, and geography along with historical water policies and regional regulations. The text reflects the transdisciplinary nature of water resources management, moving between descriptive discussions and quantitative analysis to bridge the social and physical sciences. Also providedare frequent case studies and examples to illustrate real-world applications, and includes sidebars throughout to reinforce major points. This book is a result of the authors years of teaching, giving a prescription for an intelligent integrated systemsapproach to water resources management.
Key Features
* Classroom tested
* Quantitative analyses are accompanied by worked examples
* Frequent case studies highlight important applications
* Sidebars reinforce major points and provide parenthetical information

This original analysis of the Middle East water problems highlights questions and issues which have so far only received minimal attention. The author develops a multi-layered account of the nature and causes of the conflict and the Pealestinian water crisis. Each chapter addresses a particular aspect of the Israeli-Palestine water conflict and the author uses these to illustrate both the broader nature of Israeli-Palestinian relations and factors that the existing water literature underplays or simply gets wrong. The book should interest students, scholars and practitioners in a wide range of disciplines including Middle East studies, politics and international relations, water policy, geography, environmental studies and environmental management.

Discusses effluent discharges into various ambient waters and predictive tools for design and regulatory purposes. Emphasis placed on numerical modeling and simulations, rather than general examples. Provides real technical solutions and tools for minimizing the impact on coasts and other water bodies. Covers the fundamentals in predicting the mixing of effluents resulting from desalination plants. Includes an introduction to OpenFOAM and its applications.

Flood risk management policy across the European Union is changing, partly in response to the EU Floods Directive and partly because of new scientific approaches and research findings. It involves a move towards comprehensive flood risk management, which requires bringing the following fields/domains closer together: the natural sciences, social sciences and arts; science, policy and practice; and engineering, spatial planning and governance. Naturally, this involves preventive fl ood risk management and flood event management, as well as learning from the past and considering future global change. Comprehensive Flood Risk Management includes about 200 contributions drawn from the 2nd European Conference on Flood Risk Management FLOODrisk2012 (Rotterdam, the Netherlands, 19-23 November 2012). This conference provided a forum for scientists, policy makers, researchers, and practitioners to discuss the practical implications of the latest research findings and to inventory which questions the research community still needs to answer. FLOODrisk2012, the successor of the 2008 conference held in Oxford, UK, was the initiative of Deltares, Delft, the Netherlands. Comprehensive Flood Risk Management includes the latest results of numerous projects issuing from the European Commission's Sixth and Seventh Framework Programmes, as well as results of many other national and international research projects from Europe and elsewhere in the world. The book features contributions from natural and social sciences, engineering and spatial planning, as well as practical experiences of policy makers and designers, and covers all aspects of fl ood risk assessment and management: hydraulic loads, reliability of defences and their monitoring, flood hazard analysis, inundation modelling, hazard and risk mapping, estimating economic damage and loss-of-life and integrated flood risk analysis, as well as flood protection, damage and exposure reduction, reducing social vulnerability, policy instruments (zoning, regulations), integrated flood risk management planning and long-term planning for global change, flood prediction and early warning, evacuation and rescue and other aspects of flood event management. Finally, the book discusses risk communication, participatory planning, governance issues, and experiences with the EU Floods Directive. Comprehensive Flood Risk Management will be of interest to a readership ranging from scientists to practitioners involved in fl ood risk management, and consisting of researchers, consultants, engineers, spatial planners, postgraduate lecturers, students, civil servants, and policy makers.

Resilience and Urban Risk Management presents the latest progress made in designing resilient towns, and identifies leads to be explored for attaining the objective of systematically integrating risks into urban environments The aim of the book is to provide guidance in designing and planning future cities, and to create a new form of risk management that does not ignore what already exists, but integrates it in the same way as if it were new. Resilience and Urban Risk Management is of interest to academics, architects, town planners and engineers concerned with the relationship between urban projects and the various aspects of the urban resilience concept via concrete applications and methodological or historical reflections. Damien SERRE, HDR, Professor Assistant at the Paris-Est University, EIVP, in charge of the "urban resilience" research section. The final objective of his research is to formalize knowledge useful for decision-making and helping in designing towns that are resilient when facing risks. His research is trans-disciplinary and in service of the city. Bruno BARROCA, Architect and Professor Assistant in Urban Engineering at the Paris-Est University, a member of the urban engineering team of the LEESU laboratory (Water, Environment and Urban Systems Laboratory). His research establishes links between geography, town planning and regional development. Applications cover assessment of urban vulnerability and integration of resilience objectives in urban projects located on territories subject to natural and technological risks. Richard LAGANIER, Professor in Geography at the Universite Paris 7 Paris Diderot, Sorbonne Paris Cite, the PRODIG laboratory (Centre of Research for Organization and Distribution of Geographical Information). His research activities cover the study of relationships between risks linked with water and territories and analysis of the conditions needed for developing resilience. He is the author/co-author of a large number of works on hydrological extremes and their management.

Tapping Water Markets is about the past, present, and future of water markets. It compares water markets with political water allocation, documents the growth of water markets, and explores the ways in which water markets can be improved and implemented further. This book provides up-to-date information of where and why water shortages are occurring and where and why water markets are evolving to resolve conflicting water uses. Though the main focus is on the United States, it includes examples from other parts of the world to show how water markets are beginning to thrive. It contains institutional detail that is accessible to people who are not economic or hydrologic experts, and comes alive with numerous examples and case studies of water markets. The book begins with an analysis of water institutions as they have varied over time and location. It then covers a range of discrete water management topics including surface water allocation, groundwater management, environmental flows, and water quality trading. The book concludes with predictions about the future of water scarcity and the ability of water markets to shape that future more positively.

This second edition of Fundamentals of Open Channel Flow focuses on theory followed by clear, fully-solved examples, and practical computational tools such as spreadsheets and industry standard software. It builds on a foundation in fluid mechanics and offers the basics of a first course in open channel flow for senior undergraduates or graduate students: energy, momentum, friction, and gradually varied flow, both qualitative and quantitative. This edition provides more coverage of design applications, including culvert design, a wider range of channel shapes, and an update of the US Corps of Engineers' HEC-RAS program. It shows how a few simple equations can solve a range of basic problems. The energy-depth and momentum-depth relationships are examined graphically and the book's website offers unique animations showing actual flow dynamics of some transient flow problems, as well as solutions to end-of-chapter problems and PowerPoint slides for instructors.

This book will serve as a reference guide, and state-of-the-art review, for the wide spectrum of numerical models and computational techniques available to solve some of the most challenging problems in coastal engineering. The topics covered in this book, are explained fundamentally from a numerical perspective and also include practical examples applications. Important classic themes such as wave generation, propagation and breaking, turbulence modelling and sediment transport are complemented by hot topics such as fluid and structure interaction or multi-body interaction to provide an integral overview on numerical techniques for coastal engineering. Through the vision of 10 high impact authors, each an expert in one or more of the fields included in this work, the chapters offer a broad perspective providing several different approaches, which the readers can compare critically to select the most suitable for their needs. Advanced Numerical Modelling of Wave Structure Interaction will be useful for a wide audience, including PhD students, research scientists, numerical model developers and coastal engineering consultants alike.

The marine environment is one of our most precious yet fragile natural resources. It provides a wide range of essential goods and services, including food, regulation of climate and nutrient cycling, as well as a setting for transport, recreation and tourism. This environment is however extremely complex and very sensitive to development pressures and other forms of human influence. Planning and management of the sea are similarly complicated, reflecting intricate legal, institutional and ownerships patterns. This creates a situation where marine ecosystems are vulnerable to over-exploitation or neglect. The Ecosystem Approach to Marine Planning and Management describes how growing concern about the state of our seas is resulting in the development of new approaches to marine planning and management. For example, the United Nations Environment Programme has called for the widespread introduction of Marine Spatial Planning (MSP), and the European Union has recently been consulting on a new European Maritime Policy designed to stimulate economic growth but at the same time protect the resource base. Within the United Kingdom, the 2010 Marine Act draws upon the experience of town and country planning and brings into being a new system of Marine Spatial Planning. The authors show that a common feature of all these developments is an appreciation that more integrated forms of planning and management are required for our seas and that new arrangements must draw together understanding from natural science, social science and many other perspectives. Adopting such a trans-disciplinary and holistic (or 'ecosystems') approach, the book distils the expertise of these different disciplines and seeks to promote a broader understanding of the origins and practicalities of new approaches to marine planning and management.

The challenge of water scarcity as a result of insufficient seasonal rainfall and dry spell occurrences during cropping seasons is compounded by inefficient agricultural practices by smallholder farmers where insignificant soil and water conservation efforts are applied. The hypothesis of this research is that many of the past research efforts have taken a fragmented approach to deal with the challenges facing subsistence farmers in rainfed systems. The research has been conducted in the semi-arid Makanya catchment of northern Tanzania and has successfully applied different analytical techniques to better understand soil and water interactions at field scale. It has been demonstrated that there is indeed scope to increase crop water productivity provided the local farmers adopt more efficient cultivation techniques. Substantial yield increases occur as a result of diverting runoff and these further improve when other techniques such as ripping, application of manure and cover cropping are introduced. This confirms that no single solution exists to solve the problem of low yields in rainfed farming systems. However, even with these promising results, the research has shown that there is room to further improve the efficiency of crop water use through improvement in research approaches and exploration of better techniques.

The performance of irrigation schemes that carry sediment laden water is often poor. Modern irrigation schemes are increasingly demand based, which means that the water flow in the canals is determined by the crop water requirements. Accordingly the flow in the canal network is not constant as the crop water requirement changes with the climate and the growing stages. Also the inflow of the sediment is not constant throughout the irrigation season. Such schemes, particularly having unlined canals in alluvial soils, are difficult to design and to manage without compromising the flexibility or maintenance cost. This research has made an in-depth assessment on the role of sediment in the design and management of an irrigation scheme by using the data of Sunsari Morang Irrigation Scheme, Nepal. An analysis of the velocity and shear stress distribution across a non-wide trapezoidal canal has been made to derive the correction factor for the sediment transport predictors.

Now and in the future, the ever-growing demand for drinking water will lead many cities to implement indirect water reuse programs, where wastewater effluent becomes part of the drinking water sources. Pollution of those sources with emerging contaminants (micropollutants) such as endocrine disrupting compounds, pharmaceutically active compounds, pesticides and personal care products is a fact known worldwide. In this thesis, nanofiltration (NF) and reverse osmosis (RO) are demonstrated to be appropriate technologies for removing a large number of micropollutants; however, the performance of NF and RO can be questioned because there are limited tools that optimise quantification of the removal of contaminants. Therefore, in this thesis, by means of the use of multivariate data analysis techniques, removal quantification is effectively determined and more understanding of the separation of micropollutants by membranes is achieved.

Water scarcity is increasing all over the world because of growing population and increasing demands. Countries with limited water resources are urgently in need for a new approach towards water management by shifting from the "use and dispose" approach to the "use, treat and reuse" approach. This book proposes a framework for the sustainable management of scarce water resources. The approach is based on the application of Cleaner Production thinking to water management.
This book focuses on the West Bank in Palestine. The West bank suffers from extreme water scarcity, has (for political reasons) less water than is naturally available, and anticipates an increase in demand for water for reasons of population and economic growth. Therefore, the West Bank needs to shift away from the present approach to water. The book proposes a set of alternatives for sustainable water management in the domestic, agricultural and industrial sectors in the West Bank. Implementing a combination of water management alternatives as proposed in this book will put the water management in the West Bank in Palestine on the sustainable track.

This study presents an systematic approach to water quality assessment, hybrid modelling and decision support for eutrophication management in deep reservoirs. It is found that during the summer monsoon the catchment runoff into the Yongdam reservoir induces a trandsfer of pollutants from a middle stratified layer to the surface layer. Although the transport mechanism limits nutrient accumulation on the bottom of the reservoir, it also offers an opportunity for on-going algae production in the surface water. Physically based modelling is used to understand the process of micro-scale turbulent mixing and its impact on the nutrient uptake by algae. Further, a data-driven model using clustering and partial least squares regression which uses results from a physically based model of the reservoir successfully predicts Chlorophyll-a concentrations.

This book focuses on threats, especially contaminants, to drinking water and the supply system, especially in municipalities but also in industrial and even residential settings. The safety, security, and suitability landscape can be described as dynamic and complex stemming from necessity and hence culpability due to the emerging threats and risks, vis-a-vis globalization resulting in new forms of contaminants being used due to new technologies. The book provides knowledge and guidance for engineers, scientists, designers, researchers, and students who are involved in water, sustainability, and study of security issues. This book starts out with basics of water usage, current statistics, and an overview ofwater resources. The book then introduces different scenarios of safety and security and areas that researchers need to focus. Following that, the book presents different types of contaminants - inadvertent, intentional, or incidental. The next section presents different methodologies of contamination sensing/detection and remediation strategies as per guidance and standards set globally. The book then concludes with selected chapters on water management, including critical infrastructure that is critical to maintaining safe water supplies to cities and municipalities. Each chapter includes descriptive information for professionals in their respective fields. The breadth of chapters offers insights into how science (physical, natural, and social) and technology can support new developments to manage the complexity resident within the evolving threat and risk landscape.

Don't drain the swamp! Man's traditional response to swamps, marshes and bogs has been to drain them. But wetlands are not wastelands. Coastal marshes are among the world's most productive ecosystems. They make many commercial fisheries possible and protect coasts from floods and storm surges. Wetlands are pollution filters, water reservoirs. They are among the last wild places on earth, offering homes to endangered plants, birds and animals. Attitudes to wetlands are changing, but not fast enough. As scientists are documenting the wealth in wet places, governments and developers are draining them, damming them, logging them and building resort hotels where ', they once were. Destruction is usually a poor trade-off: well-managed wetlands in Louisiana are producing fortunes in seafood and timber. Waterlogged wealth examines the value of swamps and marshes, as well as the threats against them. In doing so it takes the reader to some of the world's most bizarre landscapes: the 'inland delta' of the Niger River in drought-stricken Mali; the wildlife-rich Okavango swamps of Botswana; the waterlogged Sunderban forests of India and Bangladesh, where tigers eat fish and crabs. Civilisation began around wetlands; today's civilisation has good reason to leave them wet and wild. Dr Edward Maltby is a lecturer in geography at the University of Exeter(UK). He has done extensive research on wetlands both in the North (UK, US, Canada) and the South (Fiji, Jamaica, India and the Falklands/Malvinas Islands). He is on the IUCN Wetland Programme Advisory Committee. Originally published in 1986

A three volume set consisting of: Water Quality Monitoring: A practical guide to the design and implementation of freshwater quality studies and monitoring programmes Richard Balance & Jamie Bartram 9780419217305 July 1996 234x156mm 400pp Water quality monitoring is an essential tool in the management of water resources and this book comprehensively covers the entire monitoring operation. This important text is the outcome of a collborative programme of activity between UNEP and WHO with inputs from WMO and UNESCO and draws on the international standards of the International Organization of Standardization. Water Pollution Control: A Guide to the Use of Water Quality Management Principles Richard Helmer & Ivanildo Hespanhol 9780419229100 October 1997 234x156mm 520pp This is a handbook for policy makers and environmental managers in water authorities and engineering companies engaged in water quality programmes, especially in developing countries. It is also suitable for use as a textbook or as training material for water quality management courses. It is a companion volume to Water Quality Assessments and Water Quality Monitoring.Water Quality Assessments: A Guide to the Use of Biota, Sediments and Water in Environmental Monitoring Deborah V. Chapman 9780419216001 August 1996 234x156mm 650pp This guidebook, now thorougly updated and revised in its second edition, gives comprehensive advice on the designing and setting up of monitoring programmes for the purpose of providing valid data for water quality assessments in all types of freshwater bodies. It is clearly and concisely written in order to provide the essential information for all agencies and individuals responsible for water quality.

This new book offers an engineer's perspective on the history of water technology and it's impact on the development of civilisation.
A Second Edition and translation into English of the French book "L'Hydraulique dans les Civilisations Anciennes."
Water professionals, engineers, scientists, and students will find this book fascinating and invaluable to their understanding of the fundamental role of water engineering in the development of civilization. The book abounds with descriptions of hydraulic techniques in the civilizations of the classical era and the Middle Ages, including illustrations ands translated descriptions of ancient observers and authors. The work is unique in offering an engineer perspective not only on the history of water technology, but also demonstration of the genesis of ideas and the transmissions of ideas and technology from one age and civilization to the next. The book is specially noteworthy for its efforts to situate hydraulic developments in their historical and intellectual context.

This book highlights the relationship between the water sector and various other sectors in order to establish an improved understanding of the importance of water resources as an essential cross-cutting vector of socio-economic development. The book is both policy and practice oriented and is not constrained by existing definitions on water security. It includes actual experiences of policy, management, development and governance decisions taken within the water sector, and examples on how these have affected the energy and agricultural sectors as well as impacted the environment, and vice versa, as appropriate. It also discusses trade-offs, short and long-term implications, lessons learnt, and the way forward. The book includes case studies on cities, countries and regions such as Australia, China, Singapore, Central Asia, Morocco, Southern Africa, France, Latin America, Brazil and California.

Water transmission and distribution systems are pressurized hydraulic networks, consisting of pipes and other appurtenant components such as reservoirs, pumps, valves and surge devices. Analysis, design and flow control problems in such systems can best be dealt with using network synthesis. This approach aims to directly determine design variables in order to achieve a specified behaviour of the system under steady state or transient flow conditions. There are enormous advantages to be achieved in applying such a model to a wide variety of problems in engineering practice. The innovative theoretical framework described in this thesis, incorporates necessary and sufficient conditions for solvability, as well as methods/algorithms for the efficient solution of network problems.

Anthropogenic climate change may lead to intensification of the global hydrological cysle and to increased flooding risk of rivers across Europe. A series of extreme floods in European rivers in the last decades have stimulated discussions about the possible effects of climate variability/change and human interventions in river basins. A synoptic-climatological analysis was carried out to elucidate the observed precipitation change in the Meuse basin, in northwestern Europe. The findings of this research will be valuable to those developing improved flood protection strategies, as well as those engaged in water resource management in river basins similar to the Meuse.

Historically, economic crises have triggered the global policy of transferring the management of irrigation systems to water users associations. The impact of these transfers has been very complex and recent studies have shown that the outcomes vary from region to region, and are diverse even within a single country. The present study looks at 16 irrigation ditches in Colombia, where management was transferred from the Colombian government to water users associations. Some examples show an improvement in organizational stability, following the transfer of management, while others demonstrate a deterioration. A conceptual framework is presented, for the establishment of a sustainable management policy, based on an inter-relationship between the community, the environment and science and technology. For an effective implementation of the framework, the role of government, water users associations and farmers are considered to be the key elements, and it is believed that an effective integration of these players contributes to successful and sustainable management. The water users organization needs to follow an integral and participatory management approach, enlarging its span of action beyond mere operation activities, into the area of improvement of the standard of living of farmers. Encouraging the adoption of irrigated agriculture under criteria of sustainability, profitability, competitiveness, equity and multi-functionality is the way forward. The RUT Irrigation District is one of the most progressive irrigation districts in Colombia, and it is here that the conceptual framework has been intensively analyzed and evaluated.

Transboundary rivers and lakes are often the remaining new sources of water that can be developed for human uses. These water sources were not used in the past because of the many complexities involved. Written and edited by the world 's leading water and legal experts, this unique and authoritative book analyses the magnitudes of the transboundary water problems in different parts of the world. It also examines difficulties and constraints faced to resolve these problems.

The demand on land to produce food, for urban development such as housing, industry, shopping areas, infrastructure and also for recreation has increased during the history of mankind. This has resulted in such activities as the reclamation of swamps, flood plains, tidal areas and even lakes by impoldering. Model simulations can be use to gain insight into the system behaviour of different land use and soil composition under temperate humid and humid tropic conditions, The existing package OPOL, based on a non steady model, was further developed to the version OPOL5 for the simulation of hydrological conditions and optimization of the main components of water management systems in polder areas in the temperate humid and humid tropical zone. This model reveals a system's behaviour as well as the effects of variation in the main components of the systems to the overall costs. For example, the designs of pumped drainage systems in polder areas can be optimized by varying the main components until the annual equivalent costs are minimum. A GIS tool has been used to complement OPOL5 for the simulation of the real situation in an area with respect to land use, damage, topography, and soil type. The model package has been applied to two case studies: one in the temperate humid zone, namely the Netherlands and to Thailand in the humid tropical zone.