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Author: Philip Mzava Publisher: LAP Lambert Academic Publishing ISBN: 9783843378581 Category : Languages : en Pages : 108
Book Description
This manuscript is derived from the Author s Masters thesis, it presents coupling the applications of Geographic Information Systems, Analytical and Numerical methods to model groundwater flow in the sloping aquifers; Ogallala Aquifer-Kansas, central USA case study, using a stepping base approach. The study also led to identification of surface water and groundwater interaction points and quantities during the pre-development conditions, and the possible points of disappeared streams in the study region.
Author: Philip Mzava Publisher: LAP Lambert Academic Publishing ISBN: 9783843378581 Category : Languages : en Pages : 108
Book Description
This manuscript is derived from the Author s Masters thesis, it presents coupling the applications of Geographic Information Systems, Analytical and Numerical methods to model groundwater flow in the sloping aquifers; Ogallala Aquifer-Kansas, central USA case study, using a stepping base approach. The study also led to identification of surface water and groundwater interaction points and quantities during the pre-development conditions, and the possible points of disappeared streams in the study region.
Author: Jacob Bear Publisher: Springer Science & Business Media ISBN: 9781556080142 Category : Science Languages : en Pages : 438
Book Description
Groundwater constitutes an important component of many water resource systems, supplying water for domestic use, for industry, and for agriculture. Management of a groundwater system, an aquifer, or a system of aquifers, means making such decisions as to the total quantity of water to be withdrawn annually, the location of wells for pumping and for artificial recharge and their rates, and control conditions at aquifer boundaries. Not less important are decisions related to groundwater qUality. In fact, the quantity and quality problems cannot be separated. In many parts of the world, with the increased withdrawal of ground water, often beyond permissible limits, the quality of groundwater has been continuously deteriorating, causing much concern to both suppliers and users. In recent years, in addition to general groundwater quality aspects, public attention has been focused on groundwater contamination by hazardous industrial wastes, by leachate from landfills, by oil spills, and by agricultural activities such as the use of fertilizers, pesticides, and herbicides, and by radioactive waste in repositories located in deep geological formations, to mention some of the most acute contamination sources. In all these cases, management means making decisions to achieve goals without violating specified constraints. In order to enable the planner, or the decision maker, to compare alternative modes of action and to ensure that the constraints are not violated, a tool is needed that will provide information about the response of the system (the aquifer) to various alternatives.
Author: Jacob Bear Publisher: Springer Science & Business Media ISBN: 1402066821 Category : Science Languages : en Pages : 851
Book Description
In many parts of the world, groundwater resources are under increasing threat from growing demands, wasteful use, and contamination. To face the challenge, good planning and management practices are needed. A key to the management of groundwater is the ability to model the movement of fluids and contaminants in the subsurface. The purpose of this book is to construct conceptual and mathematical models that can provide the information required for making decisions associated with the management of groundwater resources, and the remediation of contaminated aquifers. The basic approach of this book is to accurately describe the underlying physics of groundwater flow and solute transport in heterogeneous porous media, starting at the microscopic level, and to rigorously derive their mathematical representation at the macroscopic levels. The well-posed, macroscopic mathematical models are formulated for saturated, single phase flow, as well as for unsaturated and multiphase flow, and for the transport of single and multiple chemical species. Numerical models are presented and computer codes are reviewed, as tools for solving the models. The problem of seawater intrusion into coastal aquifers is examined and modeled. The issues of uncertainty in model input data and output are addressed. The book concludes with a chapter on the management of groundwater resources. Although one of the main objectives of this book is to construct mathematical models, the amount of mathematics required is kept minimal.
Author: E. Custodio Publisher: Springer Science & Business Media ISBN: 9789027726551 Category : Science Languages : en Pages : 876
Book Description
Proceedings of the NATO Advanced Research Workshop on Advances in Analytical and Numerical Groundwater Flow and Quality Modelling, Lisbon, Portugal, June 2-6, 1987
Author: Herbert F. Wang Publisher: Academic Press ISBN: 0080571948 Category : Science Languages : en Pages : 248
Book Description
The dramatic advances in the efficiency of digital computers during the past decade have provided hydrologists with a powerful tool for numerical modeling of groundwater systems. Introduction to Groundwater Modeling presents a broad, comprehensive overview of the fundamental concepts and applications of computerized groundwater modeling. The book covers both finite difference and finite element methods and includes practical sample programs that demonstrate theoretical points described in the text. Each chapter is followed by problems, notes, and references to additional information. This volume will be indispensable to students in introductory groundwater modeling courses as well as to groundwater professionals wishing to gain a complete introduction to this vital subject. - Systematic exposition of the basic ideas and results of Hilbert space theory and functional analysis - Great variety of applications that are not available in comparable books - Different approach to the Lebesgue integral, which makes the theory easier, more intuitive, and more accessible to undergraduate students
Author: Mary P. Anderson Publisher: Academic Press ISBN: 0080916384 Category : Technology & Engineering Languages : en Pages : 632
Book Description
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 (for finite differences) and FEFLOW (for finite elements) - Discusses particle tracking methods and codes for flowpath analysis and advective transport of contaminants - Summarizes parameter estimation and uncertainty analysis approaches using the code PEST to illustrate how concepts are implemented - Discusses modeling ethics and preparation of the modeling report - Includes Boxes that amplify and supplement topics covered in the text - Each chapter presents lists of common modeling errors and problem sets that illustrate concepts
Author: Philip Mzava
Author: Philip Mzava
Author: Jacob Bear
Author: Jacob Bear
Author: Jacob Bear
Author: Thomas E. Reilly
Author: E. Custodio
Author: Joseph D. Ritchey
Author: Herbert F. Wang
Author: Mary P. Anderson
Author: James W. Mercer