Unsaturated Zone Modeling

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Unsaturated-zone Modeling

Author : R.A. Feddes
Publisher : Springer Science & Business Media
ISBN 13 : 9781402029189
Total Pages : 392 pages
Book Rating : 4.0/5 (291 download)

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Book Synopsis Unsaturated-zone Modeling by : R.A. Feddes

Download or read book Unsaturated-zone Modeling written by R.A. Feddes and published by Springer Science & Business Media. This book was released on 2004-10-11 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mankind has manipulated the quantity and quality of soil water for millennia. Food production was massively increased through fertilization, irrigation and drainage. But malpractice also caused degradation of immense areas of once fertile land, rendering it totally unproductive for many generations. In populated areas, the pollutant load ever more often exceeds the soil’s capacity for buffering and retention, and large volumes of potable groundwater have been polluted or are threatened to be polluted in the foreseeable future. In the past decades, the role of soil water in climate patterns has been recognized but not yet fully understood. The soil-science community responded to this diversity of issues by developing numerical models to simulate the behavior of water and solutes in soils. These models helped improve our understanding of unsaturated-zone processes and develop sustainable land-management practices. Aimed at professional soil scientists, soil-water modelers, irrigation engineers etc., this book discusses our progress in soil-water modeling. Top scientists present case studies, overviews and analyses of strengths, weaknesses, opportunities and threats related to soil-water modeling. The contributions cover a wide range of spatial scales, and discuss fundamental aspects of unsaturated-zone modeling as well as issues related to the application of models to real-world problems.

Unsaturated Zone Hydrology for Scientists and Engineers

Author : James A. Tindall
Publisher :
ISBN 13 :
Total Pages : 648 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Unsaturated Zone Hydrology for Scientists and Engineers by : James A. Tindall

Download or read book Unsaturated Zone Hydrology for Scientists and Engineers written by James A. Tindall and published by . This book was released on 1999 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction and bief history; Physical properties and characteristics of soils; Behavior of clay-water systems; Potential and thermodynamics of soil water; Chemical properties and principles of soil water; Principles of water flow in soil; Saturated water flow in soil; Unsaturated water flow in soil; Transport of heat and gas in osil and at the surface; Contaminant transport; Effects of infiltration and drainage on soil-water redistribution; Applied soil physics: modeling water, solute, and vapor movement. Drainage in soil water and ground water; Soil remediation techniques; Saptial variability, scaling, and fractals; Appendix 1: Site characterizaton and monitoring devices; Appendix 2: Mathematics review; Appendix 3: tables; References; Index.

Unsaturated Zone Hydrology

Author : Gary L. Guymon
Publisher : Pearson Education
ISBN 13 : 0132441217
Total Pages : 369 pages
Book Rating : 4.1/5 (324 download)

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Book Synopsis Unsaturated Zone Hydrology by : Gary L. Guymon

Download or read book Unsaturated Zone Hydrology written by Gary L. Guymon and published by Pearson Education. This book was released on 1994-03-23 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using a quantitative modeling approach, this volume offers a comprehensive exploration of the movement of water in the unsaturated zone (and associated transport phenomena) – the pathway of many contaminants to the saturated zone where much of the world's potable water is stored. It is the first book to combine research and knowledge on this subject from a wide variety of disciplines into a single source directed toward engineering and environmental training and applications. Deals with contaminant and heat transport in the unsaturated zone; includes a description of soils and their properties and unsaturated soil hydraulic properties; describes unsaturated zone processes; and thoroughly explores numerical modeling and uncertainty in modeling. A text for students in engineering and environmental science, and a reference for practicing engineers and scientists involved in the analysis of unsaturated zone contaminant problems.

Identification and Compilation of Unsaturated/vadose Zone Models

Author : Paul Van der Heijde
Publisher :
ISBN 13 :
Total Pages : 148 pages
Book Rating : 4.3/5 ( download)

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Book Synopsis Identification and Compilation of Unsaturated/vadose Zone Models by : Paul Van der Heijde

Download or read book Identification and Compilation of Unsaturated/vadose Zone Models written by Paul Van der Heijde and published by . This book was released on 1994 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Unsaturated Flow in Hydrologic Modeling

Author : H.J. Morel-Seytoux
Publisher : Springer Science & Business Media
ISBN 13 : 940092352X
Total Pages : 534 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Unsaturated Flow in Hydrologic Modeling by : H.J. Morel-Seytoux

Download or read book Unsaturated Flow in Hydrologic Modeling written by H.J. Morel-Seytoux and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume certainly is a Conference Proceedings, the Proceedings of the NATO Advanced Research Workshop (ARW) on "Unsaturated Flow in Hydrologic Modeling" held at "Les Villages du Soleil" near ArIes, France from June 13 to 17, 1988. Let me therefore acknowledge properly, at the very beginning, the gratitude of all the participants to the NATO Science Committee for its generous support and worthwhile goal of bringing together scientists of many countries to communicate and share their experiences. Particular thanks are extended to the director of the program, Dr. Luis Vega da Cunha for his interest and understanding. On the other hand this volume is also, and probably more so, a Textbook that fills a gap in the field of unsaturated flow. Many treatises on the subject present the theory in its different aspects. Hardly any explain in details how the different pieces can be put together to address realistic problems at the basin scale. The various invited contributions to the ARW were structured in a subject progression much as chapters are organized in a book. The intent of the ARW was to assess the current state of knowledge in "Unsaturated Flow" and its use in "Hydrologic Modeling Practice". In a sense the interest in fundamentals of unsaturated flow in this ARW was not just for the sake of knowledge but also and primarily for the sake of action. Can such fundamental knowledge be utilized for better management of the water resource? was the basic question.

Unsaturated Soil Mechanics in Engineering Practice

Author : Delwyn G. Fredlund
Publisher : John Wiley & Sons
ISBN 13 : 1118133595
Total Pages : 946 pages
Book Rating : 4.1/5 (181 download)

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Book Synopsis Unsaturated Soil Mechanics in Engineering Practice by : Delwyn G. Fredlund

Download or read book Unsaturated Soil Mechanics in Engineering Practice written by Delwyn G. Fredlund and published by John Wiley & Sons. This book was released on 2012-07-24 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt: The definitive guide to unsaturated soil— from the world's experts on the subject This book builds upon and substantially updates Fredlund and Rahardjo's publication, Soil Mechanics for Unsaturated Soils, the current standard in the field of unsaturated soils. It provides readers with more thorough coverage of the state of the art of unsaturated soil behavior and better reflects the manner in which practical unsaturated soil engineering problems are solved. Retaining the fundamental physics of unsaturated soil behavior presented in the earlier book, this new publication places greater emphasis on the importance of the "soil-water characteristic curve" in solving practical engineering problems, as well as the quantification of thermal and moisture boundary conditions based on the use of weather data. Topics covered include: Theory to Practice of Unsaturated Soil Mechanics Nature and Phase Properties of Unsaturated Soil State Variables for Unsaturated Soils Measurement and Estimation of State Variables Soil-Water Characteristic Curves for Unsaturated Soils Ground Surface Moisture Flux Boundary Conditions Theory of Water Flow through Unsaturated Soils Solving Saturated/Unsaturated Water Flow Problems Air Flow through Unsaturated Soils Heat Flow Analysis for Unsaturated Soils Shear Strength of Unsaturated Soils Shear Strength Applications in Plastic and Limit Equilibrium Stress-Deformation Analysis for Unsaturated Soils Solving Stress-Deformation Problems with Unsaturated Soils Compressibility and Pore Pressure Parameters Consolidation and Swelling Processes in Unsaturated Soils Unsaturated Soil Mechanics in Engineering Practice is essential reading for geotechnical engineers, civil engineers, and undergraduate- and graduate-level civil engineering students with a focus on soil mechanics.

Modelling Water Flow in Unsaturated Porous Media

Author : Adam Szymkiewicz
Publisher : Springer Science & Business Media
ISBN 13 : 3642235581
Total Pages : 254 pages
Book Rating : 4.6/5 (422 download)

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Book Synopsis Modelling Water Flow in Unsaturated Porous Media by : Adam Szymkiewicz

Download or read book Modelling Water Flow in Unsaturated Porous Media written by Adam Szymkiewicz and published by Springer Science & Business Media. This book was released on 2012-10-11 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on two issues related to mathematical and numerical modelling of flow in unsaturated porous media. In the first part numerical solution of the governing equations is discussed, with particular emphasis on the spatial discretization of highly nonlinear permeability coefficient. The second part deals with large scale flow in heterogeneous porous media of binary structure. Upscaled models are developed and it is shown that the presence of material heterogeneities may give rise to additional non-equilibrium terms in the governing equations or to hysteresis in the averaged constitutive relationships.

Evaluation of Unsaturated/vadose Zone Models for Superfund Sites

Author : D. L. Nofziger
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis Evaluation of Unsaturated/vadose Zone Models for Superfund Sites by : D. L. Nofziger

Download or read book Evaluation of Unsaturated/vadose Zone Models for Superfund Sites written by D. L. Nofziger and published by . This book was released on 1994 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Conceptual Models of Flow and Transport in the Fractured Vadose Zone

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309073022
Total Pages : 399 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Conceptual Models of Flow and Transport in the Fractured Vadose Zone by : National Research Council

Download or read book Conceptual Models of Flow and Transport in the Fractured Vadose Zone written by National Research Council and published by National Academies Press. This book was released on 2001-06-21 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluid flow and solute transport within the vadose zone, the unsaturated zone between the land surface and the water table, can be the cause of expanded plumes arising from localized contaminant sources. An understanding of vadose zone processes is, therefore, an essential prerequisite for cost-effective contaminant remediation efforts. In addition, because such features are potential avenues for rapid transport of chemicals from contamination sources to the water table, the presence of fractures and other channel-like openings in the vadose zone poses a particularly significant problem, Conceptual Models of Flow and Transport in the Fractured Vadose Zone is based on the work of a panel established under the auspices of the U.S. National Committee for Rock Mechanics. It emphasizes the importance of conceptual models and goes on to review the conceptual model development, testing, and refinement processes. The book examines fluid flow and transport mechanisms, noting the difficulty of modeling solute transport, and identifies geochemical and environmental tracer data as important components of the modeling process. Finally, the book recommends several areas for continued research.

A Steady-state Unsaturated-zone Model to Simulate Pesticide Transport

Author : A. T. Rutledge
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis A Steady-state Unsaturated-zone Model to Simulate Pesticide Transport by : A. T. Rutledge

Download or read book A Steady-state Unsaturated-zone Model to Simulate Pesticide Transport written by A. T. Rutledge and published by . This book was released on 1991 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Modeling Groundwater Flow and Contaminant Transport

Author : Jacob Bear
Publisher : Springer Science & Business Media
ISBN 13 : 1402066821
Total Pages : 851 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Modeling Groundwater Flow and Contaminant Transport by : Jacob Bear

Download or read book Modeling Groundwater Flow and Contaminant Transport written by Jacob Bear and published by Springer Science & Business Media. This book was released on 2010-01-18 with total page 851 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Climate Change and Terrestrial Ecosystem Modeling

Author : Gordon Bonan
Publisher : Cambridge University Press
ISBN 13 : 1107043786
Total Pages : 459 pages
Book Rating : 4.1/5 (7 download)

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Book Synopsis Climate Change and Terrestrial Ecosystem Modeling by : Gordon Bonan

Download or read book Climate Change and Terrestrial Ecosystem Modeling written by Gordon Bonan and published by Cambridge University Press. This book was released on 2019-02-21 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an essential introduction to modeling terrestrial ecosystems in Earth system models for graduate students and researchers.

Applied Hydrogeophysics

Author : Harry Vereecken
Publisher : Springer Science & Business Media
ISBN 13 : 1402049129
Total Pages : 391 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Applied Hydrogeophysics by : Harry Vereecken

Download or read book Applied Hydrogeophysics written by Harry Vereecken and published by Springer Science & Business Media. This book was released on 2007-04-22 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the the application of hydrogeophysical methods to the understanding of hydrological processes and environmental problems dealing with the flow of water and the transport of solutes and contaminants. Taking a process-driven approach, the book offers a series of process-driven chapters, each authored by leading experts. Areas covered include: infiltration and solute transport processes, biogeochemical functioning of soil-water systems, coastal groundwater interactions, cold region hydrology, engineered barriers and landfill processes.

Modeling Groundwater Flow and Pollution

Author : Jacob Bear
Publisher : Springer Science & Business Media
ISBN 13 : 9400933797
Total Pages : 426 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Modeling Groundwater Flow and Pollution by : Jacob Bear

Download or read book Modeling Groundwater Flow and Pollution written by Jacob Bear and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Groundwater Recharge in a Desert Environment

Author : James F. Hogan
Publisher : American Geophysical Union
ISBN 13 :
Total Pages : 310 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Groundwater Recharge in a Desert Environment by : James F. Hogan

Download or read book Groundwater Recharge in a Desert Environment written by James F. Hogan and published by American Geophysical Union. This book was released on 2004-01-09 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Water Science and Application Series, Volume 9. Groundwater recharge, the flux of water across the water table, is arguably the most difficult component of the hydrologic cycle to measure. In arid and semiarid regions the problem is exacerbated by extremely small recharge fluxes that are highly variable in space and time. --from the Preface Groundwater Recharge in a Desert Environment: The Southwestern United States speaks to these issues by presenting new interpretations and research after more than two decades of discipline-wide study. Discussions ondeveloping environmental tracers to fingerprint sources and amounts of groundwater at the basin scalethe critical role of vegetation in hydroecological processesnew geophysical methods in quantifying channel rechargeapplying Geographical Information System (GIS) models to land surface processescoupling process-based vadose zone to groundwater modeling, and more make this book a significant resource for hydmlogists, biogeoscientists, and geochemists concerned with water and water-related issues in arid and semiarid regions.

Vadose Zone Processes

Author : John S. Selker
Publisher : CRC Press
ISBN 13 : 9780873719537
Total Pages : 356 pages
Book Rating : 4.7/5 (195 download)

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Book Synopsis Vadose Zone Processes by : John S. Selker

Download or read book Vadose Zone Processes written by John S. Selker and published by CRC Press. This book was released on 1999-06-28 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vadose Zone Processes provides a unified, up-to-date treatment on the movement of water through unsaturated media. In addition to covering the basic equations governing the flow and fate of water in unsaturated media, the text covers the biogeochemistry of vadose environments and the statistical description of vadose processes. The authors emphasize maintaining an intuitive understanding of how the results are derived and how they are appropriately applied. This comprehensive and important book will be useful not only to those in traditional fields such as civil engineering, geology, crop science, chemical engineering, agricultural engineering, and hydrology but also in the newer environmental engineering fields including containment transport, pollution remediation, and waste disposal.

Groundwater Models for Resources Analysis and Management

Author : Aly I. El-Kadi
Publisher : CRC Press
ISBN 13 : 1351443909
Total Pages : 380 pages
Book Rating : 4.3/5 (514 download)

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Book Synopsis Groundwater Models for Resources Analysis and Management by : Aly I. El-Kadi

Download or read book Groundwater Models for Resources Analysis and Management written by Aly I. El-Kadi and published by CRC Press. This book was released on 2017-11-22 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by renowned experts in the field, this book assesses the status of groundwater models and defines models and modeling needs in the 21st century. It reviews the state of the art in model development and application in regional groundwater management, unsaturated flow/multiphase flow and transport, island modeling, biological and virus transport, and fracture flow. Both deterministic and stochastic aspects of unsaturated flow and transport are covered. The book also introduces a unique assessment of models as analysis and management tools for groundwater resources. Topics covered include model vs. data uncertainty, accuracy of the dispersion/convection equation, protocols for model testing and validation, post-audit studies, and applying models to karst aquifers.