Conceptual Models of Flow and Transport in the Fractured Vadose Zone

Conceptual Models of Flow and Transport in the Fractured Vadose Zone
Author: National Research Council
Publisher: National Academies Press
Total Pages: 398
Release: 2001-05-21
Genre: Science
ISBN: 0309170990

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.

Hydropedology

Hydropedology
Author: Henry Lin
Publisher: Academic Press
Total Pages: 859
Release: 2012-07-09
Genre: Technology & Engineering
ISBN: 0123869870

Hydropedology is a microcosm for what is happening in Soil Science. Once a staid discipline found in schools of agriculture devoted to increasing crop yield, soil science is transforming itself into an interdisciplinary mulch with great significance not only for food production but also climate change, ecology, preservation of natural resources, forestry, and carbon sequestration. Hydropedology brings together pedology (soil characteristics) with hydrology (movement of water) to understand and achieve the goals now associated with modern soil science. - The first book of its kind in the market - Highly interdisciplinary, involving new thinking and synergistic approaches - Stimulating case studies demonstrate the need for hydropedology in various practical applications - Future directions and new approaches are present to advance this emerging interdisciplinary science

Hydropedology

Hydropedology
Author: Henry Lin
Publisher: Academic Press
Total Pages: 860
Release: 2012-08-17
Genre: Science
ISBN: 0123869412

Overviews and fundamentals -- Case studies and applications -- Advances in modeling, mapping, and coupling.

Percolation Theory for Flow in Porous Media

Percolation Theory for Flow in Porous Media
Author: Allen Hunt
Publisher: Springer Science & Business Media
Total Pages: 334
Release: 2009-05-05
Genre: Science
ISBN: 3540897895

Why would we wish to start a 2nd edition of “Percolation theory for ?ow in porous media” only two years after the ?rst one was ?nished? There are essentially three reasons: 1) Reviews in the soil physics community have pointed out that the introductory material on percolation theory could have been more accessible. Our additional experience in teaching this material led us to believe that we could improve this aspect of the book. In the context of rewriting the ?rst chapter, however, we also expanded the discussion of Bethe lattices and their relevance for “classical” - ponents of percolation theory, thus giving more of a basis for the discussion of the relevance of hyperscaling. This addition, though it will not tend to make the book more accessible to hydrologists, was useful in making it a more complete reference, and these sections have been marked as being possible to omit in a ?rst reading. It also forced a division of the ?rst chapter into two. We hope that physicists without a background in percolation theory will now also ?nd the - troductory material somewhat more satisfactory. 2) We have done considerable further work on problems of electrical conductivity, thermal conductivity, and electromechanical coupling.

Advances in Agronomy

Advances in Agronomy
Author:
Publisher: Academic Press
Total Pages: 304
Release: 2018-01-02
Genre: Science
ISBN: 0128152842

Advances in Agronomy continues to be recognized as a leading reference and first-rate source for the latest research in agronomy. Each volume contains an eclectic group of reviews by leading scientists throughout the world. As always, the subjects covered are rich, varied, and exemplary of the abundant subject matter addressed by this long-running serial. - Includes numerous, timely, state-of-the-art reviews on the latest advancements in agronomy - Features distinguished, well recognized authors from around the world - Builds upon this venerable and iconic review series - Covers the extensive variety and breadth of subject matter in the crop and soil sciences

Tracer Hydrology 97

Tracer Hydrology 97
Author: A. Kranjc
Publisher: CRC Press
Total Pages: 472
Release: 1997-01-01
Genre: Science
ISBN: 9789054108757

This collection of papers addresses a number of topics in hydrology tracing techniques including: protection of natural resources against pollution; the use of natural and artificial tracers to help to assess contaminant transport in surface waters; and aquifer parameters and modelling.

Physical Nonequilibrium in Soils

Physical Nonequilibrium in Soils
Author: H. Magdi Selim
Publisher: CRC Press
Total Pages: 500
Release: 2022-01-27
Genre: Science
ISBN: 1000115178

Physical Nonequilibrium in Soils provides cutting-edge knowledge on physical nonequilibrium phenomena in soils, offering unique insight into the complexity of our physical world. With 18 chapters comprising the book, topics cover soil properties fluid properties mechanistic models transfer function geostatistics fractal analysis cellular-automation fluids coupling of physical and chemical nonequilibrium models confirming and quantifying physical nonequilibrium in soils analytical solutions field-scale research environmental impacts.

The Handbook of Groundwater Engineering

The Handbook of Groundwater Engineering
Author: Jacques W. Delleur
Publisher: CRC Press
Total Pages: 1006
Release: 2010-12-12
Genre: Technology & Engineering
ISBN: 9781420048582

Due to the increasing demand for adequate water supply caused by the augmenting global population, groundwater production has acquired a new importance. In many areas, surface waters are not available in sufficient quantity or quality. Thus, an increasing demand for groundwater has resulted. However, the residence of time of groundwater can be of the order of thousands of years while surface waters is of the order of days. Therefore, substantially more attention is warranted for transport processes and pollution remediation in groundwater than for surface waters. Similarly, pollution remediation problems in groundwater are generally complex. This excellent, timely resource covers the field of groundwater from an engineering perspective, comprehensively addressing the range of subjects related to subsurface hydrology. It provides a practical treatment of the flow of groundwater, the transport of substances, the construction of wells and well fields, the production of groundwater, and site characterization and remediation of groundwater pollution. No other reference specializes in groundwater engineering to such a broad range of subjects. Its use extends to: The engineer designing a well or well field The engineer designing or operating a landfill facility for municipal or hazardous wastes The hydrogeologist investigating a contaminant plume The engineer examining the remediation of a groundwater pollution problem The engineer or lawyer studying the laws and regulations related to groundwater quality The scientist analyzing the mechanics of solute transport The geohydrologist assessing the regional modeling of aquifers The geophysicist determining the characterization of an aquifer The cartographer mapping aquifer characteristics The practitioner planning a monitoring network