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Books > Earth & environment > Earth sciences > The hydrosphere > Hydrology (freshwater)
Deterministic Methods in Systems Hydrology presents the basic theory underlying the multitude of parameter-rich models which dominate the hydrological literature. Its objectives are to introduce the elements of systems science as applied to hydrological problems; to present flood prediction and flood routing as problems in linear systems theory, clarifying the basic assumptions and evaluating their accuracy; and to review and to evaluate some deterministic models of components of the hydrological cycle, with a view to assembling the most appropriate model of catchment response, for a particular problem in applied hydrology. The material is developed in two parts: the first four chapters present the systems viewpoint, the nature of hydrological systems, some systems mathematics and their application to direct storm runoff. The final four chapters cover linear conceptual models of direct runoff, the fitting of conceptual models to data, simple models of subsurface flow and non-linear deterministic models.
Flood disasters continue to occur in many countries in the world and cause tremendous casualties and property damage. To mitigate the effects of floods, a range of structural and non-structural measures have been employed including dykes, channelling, flood-proofing property, land-use regulation and flood warning schemes. Such schemes can include the use of Artificial Neural Networks (ANN) for modelling the rainfall run-off process as it is a quick and flexible approach which gives very promising results. However, the inability of ANN to extrapolate beyond the limits of the training range is a serious limitation of the method, and this book examines ways of side-stepping or solving this complex issue.
This book demonstrates the role of dominant ecological factors on the organisms of running water and the functioning of the ecosystem, as well as the consequences of human activity. It provides vision of certain rivers and streams that represent various types of European watercourses.
The Lake and Pond Management Guidebook is the successor to the bestselling Lake Smarts: The First Lake Maintenance Handbook, the "bible" for small-scale lake and pond improvements, published by the Terrene Institute in 1993. Completely revised and updated, now published by Lewis Publishers, this guidebook contains over 300 ideas and projects including step-by-step practical, low-cost solutions to a wide range of problems that lake management professionals face everyday. Coverage includes shoreland buffer installation, fisheries management, reducing nuisance algal growth, controlling exotic aquatic plants, lakeside wastewater treatment systems, small scale dredging, and more.
Thermal enrichment of coldwater streams by heated stormwater in summer months is often overlooked and even exacerbated by traditional management practices that typically account for flow moderation and pollutant removal only. Initiated in 1999, this study evaluated and identified innovative and traditional approaches to moderate this temperature impact by monitoring and analyzing the hydrologic and thermal regimes of an urban stormwater treatment system consisting of two traditional wet detention ponds and an enhanced natural wetland. Data analysis clearly shows temperature increases in the open detention ponds and the ability of the wetland to mitigate this thermal enrichment. Event-based thermal loading and temperature regime analysis indicated flow reduction via infiltration and effective vegetative cover in the wetland were the primary mechanisms for mitigating stormwater thermal enrichment. Using the concept of temperature equivalent, we also established the locations and strength of thermal enrichment areas. A heat transfer model was developed to simulate runoff temperature. Results indicated that rainfall characteristics, temperature difference between rainfall and the ground surface, and the runoff flow depth were the most important factors affecting runoff temperature.
This is the fifth and last volume representing the proceedings of the International Conference on Water Resources Management in Arid Regions held March 23rd-27th 2002 in Kuwait. This book discusses major aspects of hydrology and water resources. It presents papers on important aspects of surface water and groundwater hydrology, including drought tendencies, regional flood frequency analysis, urban storm drainage with curb-opening inlets, isotopic investigations for lakes, hydrologic and sediment transport modeling, groundwater exploration using remote sensing and GIS, origin and recharge rates of alluvial ground waters, stormwater and groundwater management, and considerations for stochastic finite element in geostatistics and modeling. Papers on water quality supplement the discussion.
Modeling hydrologic changes and predicting their impact on watersheds is a dominant concern for hydrologists and other water resource professionals, civil and environmental engineers, and urban and regional planners. As such changes continue, it becomes more essential to have the most up-to-date tools with which to perform the proper analyses and modeling of the complex ecology, morphology, and physical processes that occur within watersheds. An application-oriented text, Modeling Hydrologic Change: Statistical Methods provides a step-by-step presentation of modeling procedures to help you properly analyze and model real-world data.
The book presents improved equations for monthly water resources models, in particular for interception and transpiration. Most of the existing monthly models do not make a distinction between interception and transipiration, while this distinction is very important for management purposes. Interception is direct feedback to the atmosphere, important to sustain rainfall. Transpiration is a good indicator for plant growth and biomass production. This distinction also contributes to the estimation of recharge and therewith of runoff.;The derivations are based on the Markov theory for the occurrence of rain-days. The methodology can be used on the basis of an analysis of a few time series of daily data, at a spatial scale of 300km and not necessarily of the same period as the monthly data. Zimbabwe served as the case study, but derived equations can be used worldwide as long as the relationship between the monthly rainfall and the mean number of rain-days can be established.
The four volumes in this set cover major aspects of hydrology and water resources, including surface water hydrology, subsurface water hydrology, water quality hydrology, and water resources planning management. The books reflect the water resources technology as practised in India and the Indian subcontinent which should be of value to water resources professionals in the West. The books should be of interest to academicians, graduate students, practising engineers, water engineers, as well as water policy makers.
There has been an explosive growth of methods in recent years for
learning (or estimating dependency) from data, where data refers to
known samples that are combinations of inputs and corresponding
outputs of a given physical system. The main subject addressed in
this thesis is model induction from data for the simulation of
hydrodynamic processes in the aquatic environment. Firstly, some
currently popular artificial neural network architectures are
introduced, and it is then argued that these devices can be
regarded as domain knowledge incapsulators by applying the method
to the generation of wave equations from hydraulic data and showing
how the equations of numerical-hydraulic models can, in their turn,
be recaptured using artificial neural networks.
Effective management of a water well requires that the water well can meet a set of performance indicators. These can include criteria related to water quality, yield, economics and asset life. Water well deterioration due to fouling and corrosion impacts the ability of a well system to meet these criteria. Managing well deterioration processes involves understanding the nature of these processes and having in place water well maintenance strategies to deal with them. Managing water well deterioration fills a need within the literature for an academically based informative text that incorporates practical advice. The focus on a problem-oriented approach to diagnosing well deterioration makes the book a useful practical handbook. It integrates concepts from hydrogeology, hydrochemistry and microbiology to give a thorough understanding of water well deterioration processes. Scenarios have been developed to illustrate common causes of water well fouling. A feature of the book is the treatment of both corrossion and fouling issues in depth. Case studies selected from around the world are uses to illustrate approaches to the diagnosis and remediation of well deterioration. These scientifically orientated perspectives on water well deterioration are embedded within a management framework to provide a comprehensive approach to dealing with water well deterioration.
The large lakes of the East African Rift Valley are among the oldest on Earth, and are vital resources for the people of their basins. They are unique among the large lakes of the world in terms of their sensitivity to climatic change, rich and diverse populations of endemic species, circulation dynamics and water-column chemistry, and long, continuous records of past climatic change. A comprehensive study of the large African lakes is long overdue. The scientific justification for such an effort is noted in the previous paragraph and is illustrated in great detail in this volume. Societal need for the sustainable utilization of these lakes offers an even more compelling reason for examination of biological food webs, water quality, and past climate variability in East Africa. The lakes provide the most important source of protein for the people of the African Rift Valley, and fish populations are shifting dramatically in response to fishing pressure, introduction of exotic species, land use impact on water quality, and perhaps climatic change. Current estimates of primary productivity, the underpinning of the food resource, are extremely crude and based on only a few spot measurements.
The landscape of southwestern Wyoming around the ghost town of Fossil is beautiful but harsh; a dry, high mountain desert with cool nights and long, cold winters inhabited by a sparse mountain desert community. But during the early Eocene, more than fifty million years ago, it was a subtropical lake, surrounded by volcanoes and forests and teeming with life. Buried within the sun-baked limestone is spectacular evidence of the lush vegetation and plentiful fauna of the ancient past, a transitional ecosystem giving us clues to how North America recovered from a great extinction event that wiped out dinosaurs and the majority of all species on the planet. Paleontologists have been conducting excavations at Fossil Butte for more than 150 years, and with "The Lost World of Fossil Lake", one of the world's leading experts on the fossils from this spectacular locality takes readers on a fascinating journey through the history of the discovery and exploration of the site. Deftly mixing incredible color photographs of the remarkable fossils uncovered there with an explanation of their evolutionary significance, Lance Grande presents an unprecedented, comprehensive portrait of the site, its treasures, and what we've learned from them. Grande presents a broad range of fossilized organisms from Fossil Lake - from single-celled algae to palm trees to crocodiles - and together they make this long-extinct community come to life in all its diversity and splendor. A field guide and atlas round out the book, enabling readers to identify and classify the majority of the known fossils from the site. Lavishly produced in full color, "The Lost World of Fossil Lake" is a stunning reminder of the intellectual and physical beauty of scientific investigation-and a breathtaking window onto our planet's long-lost past.
This manual describes the wide range of electromechanical, electrochemical and electro-optical transducers at the heart of current field-deployable ocean observing instruments. Their modes of operation, precision and accuracy are discussed in detail. Observing platforms ranging from the traditional to the most recently developed are described, as are the challenges of integrating instrument suits to individual platforms. Technical approaches are discussed to address environmental constraints on instrument and platform operation such as power sources, corrosion, biofouling and mechanical abrasion. Particular attention is also given to data generated by the networks of observing platforms that are typically integrated into value-added data visualization products, including numerical simulations or models. Readers will learn about acceptable data formats and representative model products. The last section of the book is devoted to the challenges of planning, deploying and maintaining coastal ocean observing systems. Readers will discover practical applications of ocean observations in diverse fields including natural resource conservation, commerce and recreation, safety and security, and climate change resiliency and adaptation. This volume will appeal to ocean engineers, oceanographers, commercial and recreational ocean data users, observing systems operators, and advanced undergraduate and graduate students in the field of ocean observing.
Calcium and magnesium are abundant in groundwater, but the role of groundwater as the essential source of these important nutrients is very often neglected. Hydrogeochemical studies have focused mainly on the distribution and behaviour of constituents that cause deterioration of water quality, such as: nitrate, nitrite or iron and manganese. Therefore, most recent books and papers concentrate mainly on these constituents and only a small number of papers describe the results of groundwater studies on other important water components such as calcium or magnesium. Calcium and magnesium are of great importance to human wellbeing and inadequate intake of either nutrient can impair health. The main objective of this book is to present a selection of studies on calcium and magnesium in groundwater and to highlight their importance for human health. The chapters in this book are written by hydrogeologists and hydrochemists as well as medical doctors and include: methods of investigation of calcium and magnesium in groundwaters, distribution and behaviour of calcium and magnesium in different aquifers, calcium and magnesium in bottled mineral and spring waters, and the significance of calcium and magnesium in waters for human health.
The discipline of Stochastic Processes is usually treated as a branch of mathematics, and there are plenty of books for mathematicians on the subject. Equally, there are very many books, both for statisticians and environmental scientists, on "Time Series Analysis," analysing the structure of data sequences where measurements are made at equal time-intervals and are free from "intermittent" behaviour. But this book deals with the analysis of events which occur intermittently in time and space; through a very wide range of examples drawn from many areas of environmental science in which the role of water is central, the book shows how the same analytical procedures can be applied to very many different problems. The books many examples include: analysis of time intervals between el NiAo events, frequency of dry spells, the relation between heavy rainfall and flooding, occurrences of gravel disturbance in upland trout streams which damages trout spawn deposits and the cellular structure of rainfall. The book does not aim to be an exhaustive treatment of all possible applications of stochastic process models in the environmental sciences, but should be regarded as a source book. Its aim is to encourage students and research workers to see how environmental problems can be put into a probabilistic framework, and to draw their attention to analogous problems and solutions in other fields of environmental science in which water, and the transport of material by water, is an essential characteristic.
The Rouge River is a mostly urbanized watershed of about 500 square miles populated by nearly 1.4 million people. While not geographically large, the river has played an outsized role in the history of southeast Michigan, most famously housing Ford's massive Rouge Factory, designed by architect Albert Kahn and later memorialized in Diego Rivera's renowned "Detroit Industry" murals. In recent decades, the story of the Rouge River has also been one of grassroots environmental activism. After pollution from the Ford complex and neighboring factories literally caused the river to catch on fire in 1969, community groups launched a Herculean effort to restore and protect the watershed. Today the Rouge stands as one of the most successful examples of urban river revival in the country. Rouge River Revived describes the river's history from pre-European times into the 21st century. Chapters cover topics such as Native American life on the Rouge; indigenous flora and fauna over time; the river's role in the founding of local cities; its key involvement in Detroit's urban development and intensive industrialization; and the dramatic clean-up arising from citizen concern and activism. This book is not only a history of the environment of the Rouge River, but also of the complex and evolving relationship between humans and natural spaces.
Environmental contamination in cold regions poses unique problems. It affects traditionally pristine areas and presents substantial operational difficulties. The extreme temperature range, soils and geology, the unique biological diversity, the freezing and thawing of pollutants, and the impact of human activities make environmental site assessment and remediation a challenging task.
This book provides an overview of flood and drought in the Lower Mekong Basin, reviews the characteristics of flood and drought, and details structural and non-structural measures for flood and drought mitigation employed in the basin countries, as well as their flood and drought mitigation capacity. Given its scope, the book offers a valuable resource for researchers and engineers in the field of transboundary rivers, especially those with an interest in the Lower Mekong River.
The Great Lakes Basin in North America holds more than 20 percent of the world's fresh water. Threats to habitats and biodiversity have economic, political, national security, and cultural implications and ramifications that cross the US-Canadian border. This multidisciplinary book presents the latest research to demonstrate the interconnected nature of the challenges facing the Basin. Chapters by U.S. and Canadian scholars and practitioners represent a wide range of natural science and social science fields, including environmental sciences, geography, political science, natural resources, mass communications, environmental history and communication, public health, and economics. The book covers threats from invasive species, industrial development, climate change, agricultural and chemical runoff, species extinction, habitat restoration, environmental disease, indigenous conservation efforts, citizen engagement, environmental regulation, and pollution.Overall the book provides political, cultural, economic, scientific, and social contexts for recognizing and addressing the environmental challenges faced by the Great Lakes Basin.
The last decade has been a period of rapid advances in glacier hydrology and hydrochemistry. These have resulted from the application of new technologies to the direct observation of englacial and subglacial drainage systems via boreholes, from theoretical advances and from increased interactions between fieldworkers and modellers. This collection of papers captures the spirit of these advances highlighting new methodologies, the change in character of hydrological models from lumped conceptual models to physically based, distributed models, and the changing role of field studies in glacier hydrological investigations. Major themes identified in the book are: approaches to defining the structure of drainage systems in cold and temperate glaciers; investigations of the linkages between surface and subsurface components of these systems, and of hydraulic interactions between different elements of subglacial systems; seasonal changes in drainage system properties at local and glacier wide scales; controls on meltwater quality; the integration of field and modelling studies; and problems of scaling up results from studies of valley glaciers to the ice sheet scale.
The Hydrology of the UK assesses the changing hydrology of the UK, focusing on key issues that affect the fundamental hydrological processes and have important implications for water resource management, flood risk and environmental quality. The bookis divided into 3 sections: Section 1 examines the causes of change to the hydrology of the UK, including the impact of climate change, land use and geomorphological change, and dam construction. Section 2 assesses the effects of these pressures on UK rivers, goundwater, lakes, ponds, reservoirs and wetlands, looking at water quality, degradation, pollution and protection. Section 3 examines the responses of goverment organisations responsible for planning and management of water, including Environment Agencies, British Hydrological Society and the growing urgency for a World Hydrology Initiative. Change will continue to be a major feature of UK hydrology in the future. This book provides an understanding of the changing hydrology of the UK and the international scene today and looks to the needs for the future.
The efficient management of water supply becomes even more important in arid areas where supply is at best erratic. This book looks at a range of issues connected to urban and agricultural water use in the Sana'a Plain area, including engineering and logisical problems, environmental and climatic influences on groundwater, legal and political wrangles, economic considerations and options for waste water re-use.
The Zambezi river basin is the fourth largest river basin in Africa and drains a total of some 1350.000 square km. The basin drains eight countries: Angola, Botswana, Malawi, Mozambique, Namibia, Tanzania, Zambia and Zimbabwe. The river flows over the famous Victoria Falls into the third largest artificial lake in the world: Lake Kariba. The Zambezi Basin is rich in natural resources and has a large hydro-power potential. This volume contains 37 papers which have been published in international journals, or presented at international conferences by the Zambezi River Authority staff. The topics covered include: Dam Safety, Rehabilitation and Maintenance, Environment and Health, Hydrology, Limnology, Information Systems, Water Resource Management, Hydropower Development and Socio-Economic Issues. |
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