Natural organic matter (NOM) generally significantly influences water treatment processes such as coagulation, oxidation, adsorption, and membrane filtration. In addition to aesthetic problems such as colour, taste and odour, NOM also contributes to the fouling of filtration membranes, serves as a precursor for disinfection by-products (DBPs) of health concern during disinfection/oxidation processes, increases the exhaustion and usage rate of activated carbon and may promote microbial growth in water distribution networks. The efficiency of drinking water treatment is affected by both the amount and composition of NOM. Proper NOM characterization enables the targeting of the problematic NOM fractions for removal and transformation. However, the characterization methods used are often laborious, time consuming and may involve extensive sample pre-treatment. High performance size exclusion chromatography and fluorescence excitation-emission matrices were used to characterize NOM relatively quickly and with minimal sample preparation. These and other tools were used to improve our understanding of NOM character and behaviour during drinking water treatment. The study demonstrates the potential of multiple NOM characterization tools for the selection, operation and monitoring of water treatment processes.

Traditionally, wetlands were considered separately from river basin systems. However, nowadays it is becoming common practice to follow an integrated approach in wetland-riverine watershed analysis and management. Such approach requires not only adequate representations of all relevant bio-physical parameters, but also of socio-political and economic indicators. Data scarcity, an endemic problem in developing countries, hampers this global process. In this study, both conventional methods and state-of-the-art techniques and data sources are explored. A modelling framework is developed which includes rainfall-runoff processes, river hydrodynamics and water allocation models, seeking a balance between sophistication and simplicity, in view of data availability conditions. The framework was used to evaluate a number of scenarios, including potential effects of climatic variations and of the major hydraulic works that are planned by the national water authority. Several management options were assessed through this tool. In addition, special indicators were developed to remedy the lack of sufficient quantitative information by using a qualitative approach based on expert elicitation and stakeholder involvement. A decision support framework was applied to achieve a final ranking of the various management solutions that are in compliance with the national policies, facilitating the further development of management guidelines for wetlands across the Ecuadorian lowlands. The book will be of interest to water managers, hydro-informaticians/water modellers, people working at river basin authorities and Ministries of the environment.

"This thought-provoking book demonstrates how processes of landscape transformation, usually illustrated only in simplified or idealized form, play out over time in real, complex landscapes. Trimble illustrates how a simple landscape disturbance, generated in this case by agriculture, can spread an astonishing variety of altered hydrologic and sedimentation processes throughout a drainage basin. The changes have spatial and temporal patterns forced on them by the distinctive topographic structure of drainage basins. "Through painstaking field surveys, comparative photographic records, careful dating, a skillful eye for subtle landscape features, and a geographer's interdisciplinary understanding of landscape processes, the author leads the reader through the arc of an instructive and encouraging story. Farmers-whose unfamiliarity with new environmental conditions led initially to landscape destruction, impoverishment, and instability-eventually adapted their land use and settlement practices and, supported by government institutions, recovered and enriched the same working landscape. "For the natural scientist, Historical Agriculture and Soil Erosion in the Upper Mississippi Valley Hill Country illustrates how an initially simple alteration of land cover can set off a train of unanticipated changes to runoff, erosion, and sedimentation processes that spread through a landscape over decades-impoverishing downstream landscapes and communities. Distinct zones of the landscape respond differently and in sequence. The effects take a surprisingly long time to spread through a landscape because sediment moves short distances during storms and can persist for decades or centuries in relatively stable forms where it resists further movement because of consolidation, plant reinforcement, and low gradients. "For the social scientist, the book raises questions of whether and how people can be alerted early to their potential for environmental disturbance, but also for learning and adopting restorative practices. Trimble's commitment to all aspects of this problem should energize both groups." -Professor Thomas Dunne, Bren School of Environmental Science and Management, UC Santa Barbara

This thesis presents the development a generic morphological model for both structured and unstructured grid. An online coupling model frame is set up by modularizing a proven 3d hydrodynamic module, a bed state description module, a sediment transport module, a bed update module, and a vegetation population dynamic module. Since the model is embedded in the validated Delft software system, the existing hydrodynamics, water quality and bio-chemistry processes are applicable with minimum efforts in addition. Both relevant geomorphological and ecological processes and their scales are discussed. For the morphological model, numerical algorithms are adjusted to adapt unstructured grid. An adaptable bed update algorithm and corresponding numerical schemes are analysed. Mass conservation of morphological updating is discussed. Afterwards a generic velocity integration algorithm is presented. The function of the morphological model is validated against 1) analytical solutions, such as: hump migration problem, equilibrium bed slope and sediment concentration profile and 2) flume experiments, such as trench migration. For the bio-geomorphological extension part, relevant ecological processes and their scales are analyzed to build up the rationale to couple them with morphodynamic processes. Validations of ecological processes are against the field data in Lake Veluwe. Capability of the model has been explored for applications of two salt marsh restoration cases in United States and the large scale morphodynamics of shoreface connected radial sand ridges located in South-east China Sea. This research designs and implements a flexible bio-geomorphological modelling platform. The validation cases show that it is capable to be a multidiscipline research tool for morphologists and ecologists / biologists.

Water losses occur in all water distribution systems worldwide and high levels are indicative of poor governance and poor physical condition of the system. Water losses vary from 3% of system input volume in the developed countries to 70% in the developing countries. This high contrast suggests that probably the existing tools and methodologies are not appropriate or cannot be directly applied for water loss reduction in the developing countries. This study highlights the challenges and prospects of managing water losses in developing countries and provides a toolbox of appropriate tools and methodologies to help water utilities in the developing countries assess inefficiencies in their water distribution systems and take corrective action. Included is a step-by-step approach for water accountability, performance improvement through benchmarking techniques, economic optimization techniques for minimizing revenue losses due to metering inaccuracies, pressure management planning for proactive leakage control, and strategic planning for water loss reduction based on multi-criteria decision analysis. The developed tools and methodologies have been tested and validated in practice on real case studies in Uganda. It is envisaged that this thesis will be of considerable value to utility managers, researchers, and other agencies involved in managing water distribution losses in developing countries.

The damages and hardships caused by floods and flooding remain an issue and are continuously increasing in the Chi River Basin, Thailand. It is difficult to make an accurate assessment of the costs and consequences associated with floods. However, flood hazards can also be seen as an opportunity, a chance to correct possible flaws and ambiguities in the flood management. The Chi River system cannot handle the regularly occurring floods, consequently, flooding of the low-lying areas occurs on a regular basis. Therefore, an integrated flood management framework needs to be developed to minimize the negative effects of floods of different magnitude. In response, a hydrological model (SWAT) and a hydraulic (1D/2D SOBEK) model were integrated to simulate floods in detailed way and to analyse the current system. A reliable simulation of the river flows and inundated areas is an essential component of a holistic flood management plan. The developed modelling framework enabled to analyse the impact of different structural measures such as river normalisation, green river (bypass), and retention basin. In addition, non-structural measures including reservoir operation and spatial land use planning were assessed in their capability to protect people and valuable infrastructure. For each measure, several possible scenarios were tested and evaluated based on economic and technical efficiency criteria to determine the most promising and efficient scenario. However, effective interventions may involve a judicious combination of flood mitigation approaches, rather than reliance on a stand-alone solution. A truly optimum combination of aforesaid measures was then chosen since it could considerably reduce flood extent and its damage. Finally, the study illustrates the effects of land use changes on floods, which indicated little or no significant potential impact on flood regime at river basin level, but rather at sub-basin scale. This finding is important for a better understanding of the scale and direction of impacts of developments in the future. Integrated land use planning was shown to be an essential component of a comprehensive flood management framework.

Rivers are important agents of change that shape the Earth's surface and evolve through time in response to fluctuations in climate and other environmental conditions. They are fundamental in landscape development, and essential for water supply, irrigation, and transportation. This book provides a comprehensive overview of the geomorphological processes that shape rivers and that produce change in the form of rivers. It explores how the dynamics of rivers are being affected by anthropogenic change, including climate change, dam construction, and modification of rivers for flood control and land drainage. It discusses how concern about environmental degradation of rivers has led to the emergence of management strategies to restore and naturalize these systems, and how river management techniques work best when coordinated with the natural dynamics of rivers. This textbook provides an excellent resource for students, researchers, and professionals in fluvial geomorphology, hydrology, river science, and environmental policy.

WATER RESOURCES AND ENVIRONMENT provides a detailed introduction to the full range of advanced, multidisciplinary techniques used in the study of water resources from understanding individual aquifers to the protection and management of water in a sustainable way, compatible with the preservation of the environment. Based on a masters course from UNESCO's International Hydrological Program, this textbook is accompanied by color figures and graphics, illustrating clearly the content of the text and showing real examples from the field. Each chapter also contains a list of exercises and practical activities as well as case studies.

1. Provides cutting edge AI applications in water sector. 2. Highlights the environmental models used by experts in different countries. 3. Discusses various types of models using AI and its tools for achieving sustainable development in water and groundwater. 4. Includes case studies and recent research directions for environmental issues in water sector. 5. Addresses future aspects and innovation in AI field related to water sustainability.

Why does water always take a winding course in streams and rivers? Do common principles and rhythms underlie its movement - whether it be in the sea, in a plant, or even in the blood of a human being? In this seminal and thought-provoking work, the laws apparent in the subtle patterns of water in movement are shown to be the same as those perceptible in the shaping of bones, muscles and a myriad of other forms in nature. Fully illustrated, Sensitive Chaos reveals the unifying forces that underlie all living things. The author observes and explains such phenomena as the flight of birds, the formation of internal organs such as the heart, eye and ear, as well as mountain ranges and river deltas, weather and space patterns, and even the formation of the human embryo. A perennial bestseller since publication, Sensitive Chaos is an essential book for anyone interested in the mysteries of life on earth.

• First collection of expert chapters focusing on flood management in developing countries • Considers unique contexts within the developing countries and consideration of themes such as exploding population, fragile economies and weak infrastructural systems which are unique to the areas

Water risks, including the lack of access to fresh water for personal and industrial use, droughts, floods, and water contamination, are problems that are not new, yet, they are amplifying in the face of climate change, population growth, and rapid economic development. Properly identifying, measuring, and managing these risks as well as taking advantage of related mitigation opportunities is essential for the future well-being of firms across various industries, investors who invest in these firms, local and federal governments, and ultimately our society as a whole. This edited book sheds light on this topic by examining the unique measurement and modelling challenges associated with either the scarcity or overabundance of water and their interaction with finance and society. Specifically, it explores approaches to assess and operationalize water risk, examines the vulnerability of institutions and markets, and discusses strategies for risk mitigation.

Freshwater is our planet's most precious resource, and also the least conserved. Freshwater makes up only 3 percent of the total water on the planet, and yet the majority (1.9 percent) is held in a frozen state in glaciers, icebergs, and polar ice fields. This leaves approximately one-half of 1 percent of the total volume of water on the planet as freshwater available in liquid form. This book traces the complex history of the steady growth of humankind's water consumption, which today reaches some 9.7 quadrillion gallons per year. Along with a larger population has come the need for more drinking water, larger farms requiring extensive irrigation, and more freshwater to support business and industry. At the same time, such developments have led to increased water pollution. Three detailed case studies are included. The first looks at massive water systems in locations such as New York City and the efforts required to protect and transport such resources. The second shows how growth has affected freshwater quality in the ecologically unique and geographically isolated Lake Baikal region of eastern Russia. The third examines the success story of the privatized freshwater system in Chile and consider how that country's water sources are threatened by climate change.

'The Ganges: Cultural, Economic, and Environmental Importance' is a geographical, cultural, economic, and environmental interpretation of the Ganga River. The Ganga River originates from Gaumukh- situated in the high Himalaya, flows through the world's biggest fertile alluvial plain, and inlets into the Bay of Bengal at Ganga Sagar. It makes a unique natural and cultural landscape and is believed to be the holiest river of India. The Hindus called it 'Mother Ganga' and worship it. The towns/cities, situated on its bank, are world-famous and are known as the highland and valley pilgrimages. The water of the Ganga is pious, and the Hindus use it on different occasions while performing the rituals and customs. This book is unique because no previous study which presents a complete and comprehensive geographical description of the Ganga has been composed. This book presents the historical and cultural significance of the Ganga and its tributaries. Empirical, archival, and observation methods were applied to conduct this study. There are a total of 10 chapters in this book such as 'Introduction', 'the Ganga Basin', 'Geography of the Ganga Basin', 'the Ganges System: Ganga and its Tributaries', 'Ganga between Gaumukh and Uttarkashi', 'the Major Cultural Towns', 'Major Fairs and Festivals', 'Economic Significance of the Ganga', 'Environmental Issues', and 'Conclusions'. The contents of the book are enriched by 89 figures, 15 tables, and substantial citations and references.

This book, as a part of a series of CERES publications, provides a multi-regional and cross-sectoral analysis of food and water security, especially in the era of climate risks, biodiversity loss, pressure on scarce resources, especially land and water, increasing global population, and changing dietary preferences. It includes both conceptual research and empirically-based studies, which provides context-specific analyses and recommendations based on a variety of case studies from Africa, Middle East, and Asia regarding the fostering of long-term resilience of food and water security. The core approach of the volume consists of: assessing the structural drivers affecting the vulnerability of food and water security, under the persistence of current trends; identifying the best solutions and practices to enhance the climate resilience for food and water security; and fostering climate adaptation and biodiversity protection for food and water security.

This book brings together contributions from groundwater researchers and scientists on underground water resources in Egypt's deserts. The aquifers' quantity and quality are evaluated in many regions of the Egyptian deserts using established methods that can be effectively employed to investigate the potential for sustainable development in Egypt and similarly arid countries. The water resources in Egypt's deserts are subject to deterioration, mainly by land salinization and water deficiency. This book presents the best management practices, water quantity and quality, and optimal and sustainable usage of available groundwater. The book offers a unique guide for all readers interested in groundwater, modeling, and assessment for sustainable development in Egypt and countries with similar weather and water conditions.

This book describes the use of machine learning techniques to build predictive models of uncertainty with application to hydrological models, focusing mainly on the development and testing of two different models. The first focuses on parameter uncertainty analysis by emulating the results of Monte Carlo simulation of hydrological models using efficient machine learning techniques. The second method aims at modelling uncertainty by building an ensemble of specialized machine learning models on the basis of past hydrological modela (TM)s performance. The book then demonstrates the capacity of machine learning techniques for building accurate and efficient predictive models of uncertainty.

Groundwater systems are vital to both society and the environment, supporting food production and many other ecosystem services. Sustainable management of this vital resource for future generations requires a sound understanding of how groundwater might respond to the inevitable changes in future climate. In this volume, recent developments within the interlinked areas of the response of groundwater systems to climate variability and climate change are highlighted, using contemporary field investigations and monitoring of aquifers, numerical simulations of aquifer response to climate change predictions and paleohydrogeological studies of ancient groundwater systems. The book provides an up-to-date description of the relationship between groundwater behaviour and ancient, historical, current and future climates for a range of diverse aquifer systems around the world.

The modeling tool is applied to address water management issues in the case study region (Sharm El Sheikh, South-Sinai, Egypt) that suffers from water shortage and that is located near a unique but sensitive marine environment of high ecological value. The main economic activity in the city is tourism.
The modeling tool box is composed of five types of models depending on the specific site situations: water demand/need model, water supply model, wastewater reuse model, environmental model and economic model. The coupling of the models facilitates assessing different scenarios for integrated water resources management including different time-variant domestic and irrigation water demand, water supply options: long-distance piping and reverse osmosis desalination (RO), potable and non-potable water supply contracts between a hotel and a water company, optimum capacity and expansion for an RO desalination plants, renewable and non-renewable energy sources for RO desalination, and brine disposal options.