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This second edition is extensively revised throughout with expanded discussion of modeling fundamentals and coverage of advances in model calibration and uncertainty analysis that are revolutionizing the science of groundwater modeling. The text is intended for undergraduate and graduate level courses in applied groundwater modeling and as a comprehensive reference for environmental consultants and scientists/engineers in industry and governmental agencies. - Explains how to formulate a conceptual model of a groundwater system and translate it into a numerical model - Demonstrates how modeling concepts, including boundary conditions, are implemented in two groundwater flow codes-- MODFLOW (f...
"This book emphasizes the need for groundwater scientists to have a solid understanding of the occurrence and behavior of groundwater in a variety of conditions and settings. Knowledge of how porous media store, yield, and transmit water, and the factors that control groundwater flow rates and directions are highlighted. Eight Boxes present more detailed discussion of concepts introduced in the main text. Sixteen exercises and their solutions are also provided." -- Publisher website.
No sooner had the EPA established the Superfund program in 1980 to clean up the nation’s toxic waste dumps and other abandoned hazardous waste sites, than a little Montana town found itself topping the new program’s National Priority List. Milltown, a place too small to warrant a listing in the U.S. Census, sat alongside a modest hydroelectric dam at the confluence of the Clark Fork and Blackfoot Rivers. For three-quarters of a century, arsenic-laced waste from some of the world’s largest copper-mining operations had accumulated behind the dam. Soon, Milltown became the site of Superfund’s first dam removal and watershed restoration, marking a turning point in U.S. environmental hist...
This volume consists of papers presented in the special sessions on "Wave Phenomena and Related Topics", and "Asymptotics and Homogenization" of the ISAAC'97 Congress held at the University of Delaware, during June 2-7, 1997. The ISAAC Congress coincided with a U.S.-Japan Seminar also held at the University of Delaware. The latter was supported by the National Science Foundation through Grant INT -9603029 and the Japan Society for the Promotion of Science through Grant MTCS-134. It was natural that the 'participants of both meetings should interact and consequently several persons attending the Congress also presented papers in the Seminar. The success of the ISAAC Congress and the U.S.-Japa...
Building water resilience is the single biggest challenge in a changing global climate. The United States faces a water crisis as critical as the energy crisis that once dominated headlines. Like the energy crisis, a solution can be found. Pat Mulroy, for many years general manager of the Southern Nevada Water Authority, the lead negotiator on the Colorado River for the State of Nevada, and a Brookings fellow, has gathered a number of practitioners and scholars to show us why we face a crisis caused by climate change and what we can do to alleviate it. While the focus recently has been on California, with its water restrictions and drought, many other parts of the United States are also suff...
Methods in Stream Ecology, Second Edition, provides a complete series of field and laboratory protocols in stream ecology that are ideal for teaching or conducting research. This updated edition reflects recent advances in the technology associated with ecological assessment of streams, including remote sensing. In addition, the relationship between stream flow and alluviation has been added, and a new chapter on riparian zones is also included. The book features exercises in each chapter; detailed instructions, illustrations, formulae, and data sheets for in-field research for students; and taxanomic keys to common stream invertebrates and algae. With a student-friendly price, this book is ...
Interest in arsenic in ground water has greatly increased in the past decade because of the increased awareness of human health effects and the costs of avoidance or treatment of ground water supplies used for consumption. The goal of this book is to provide a description of the basic processes that affect arsenic occurrence and transport by providing sufficient background information on arsenic geochemistry and descriptions of hi- arsenic ground water, both affected and unaffected by human activity. An understanding of thermodynamics, adsorption, and the speciation of arsenic in solid phases, which are described in first three chapters, is needed to predict the fate of arsenic in ground wat...
This book consolidates much of what is known about the geochemistry of arsenic and provides new information on relationships between high concentrations of arsenic in ground water and geochemical environments. The subject matter of this book ranges in scope from molecular-scale geochemical processes that affect the mobility of arsenic in ground water, to arsenic contaminated ground water at the national scale. Chapters were contributed by an international group of research scientists from a broad range of backgrounds.