Download or read book Direct Current Geoelectric Sounding written by P Bhattacharya and published by Elsevier. This book was released on 2012-12-02 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Direct Current Geoelectric Sounding: Principles and Interpretation provides a comprehensive review of the Schlumberger method of geoelectric sounding, as well as current methods of interpretation. It explores the theoretical foundations of geoelectric sounding, the relative advantages and limitations of the two symmetrical arrangements for vertical electrical sounding, the techniques of interpretation for Wenner sounding curves, and dipole sounding. This volume is based on educational materials used in the study of geoelectric sounding. It begins with an overview of the theory of current flow in a horizontally stratified Earth, followed by a discussion of how the resistivity of the ground is measured. The book explains the current flow in a homogeneous anisotropic and horizontally stratified Earth, the principle of equivalence, and vertical electrical sounding. Moreover, it presents the basic principles and procedures for the construction of theoretical master curves. Asymptotic values of Schlumberger curves, the principle of reduction of two layers and of a three-layer Earth, and Tagg's method of interpretation are also discussed. The book explains the interpretation by curve-matching, characteristics of dipole electric sounding, and geological applications of electrical resistivity sounding. Engineering problems and application examples with self-explanatory diagrams are provided at the end of the chapters. This book will benefit undergraduate and postgraduate students who want to broaden their understanding of exploration geophysics, as well as professional exploration geologists and geophysicists, civil engineers, agricultural scientists, and researchers.
Download or read book Direct Current Geoelectric Sounding Principles and Interpretation written by and published by . This book was released on 1968 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Automatic Interpretation of Schlumberger Sounding Curves Using Modified Dar Zarrouk Functions written by Adel A. R. Zohdy and published by . This book was released on 1975 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Formulas defining two types of modified Dar Zarrouk curves are used to invert Schlumberger sounding curves, using an iterative procedure. The number of layers, which is equal to the number of points on the inverted curve, is reduced by automatically smoothing the corresponding DZ curve.
Download or read book Ecohydrology Hydrobiology written by and published by . This book was released on 2003 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: The international journal Ecohydrology & Hydrobiology (E&H) has been created to promote the concept of Ecohydrology, which is defined as the study of the functional interrelations between hydrology and biota at the catchment scale. Ecohydrology extends from the molecular level to catchment-scale processes and is based on three principles: • framework (hydrological principle) - quantification and integration of hydrological and ecological processes at a basin scale; • target (ecological principle) - necessity of enhancing ecosystem absorbing capacity and ecosystem services; and • management tool (ecological engineering) – the use of ecosystem properties for regulation the interplay between hydrology and biota. The journal encourages the submission of manuscripts which adopt an integrative approach to aquatic sciences, explaining ecological and hydrological processes at a river-basin scale or propose practical applications of this knowledge. It will also consider papers in other hydrobiological fields. Especially welcome are papers on regulatory mechanism within biocenosis and the resistance and resilience of freshwater and costal zones ecosystems. There is no page charge for published papers. All submitted papers, written exclusively in English, should be original works, unpublished and not under consideration for publication elsewhere. All papers are peer-reviewed. The following types of papers are considered for publication in E&H: • original research papers • invited or submitted review papers, • short communications
Download or read book Groundwater Assessment Modeling and Management written by M. Thangarajan and published by CRC Press. This book was released on 2016-09-15 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt: Your Guide to Effective Groundwater Management Groundwater Assessment, Modeling, and Management discusses a variety of groundwater problems and outlines the solutions needed to sustain surface and ground water resources on a global scale. Contributors from around the world lend their expertise and provide an international perspective on groundwater management. They address the management of groundwater resources and pollution, waste water treatment methods, and the impact of climate change on groundwater and water availability (specifically in arid and semi-arid regions such as India and Africa). Incorporating management with science and modeling, the book covers all areas of groundwater resource assessment, modeling, and management, and combines hands-on applications with relevant theory. For Water Resource Managers and Decision Makers The book describes techniques for the assessment of groundwater potential, pollution, prevention, and remedial measures, and includes a new approach for groundwater modeling based on connections (network theory). Approximately 30 case studies and six hypothetical studies are introduced reflecting a range of themes that include: groundwater basics and the derivation of groundwater flow equations, exploration and assessment, aquifer parameterization, augmentation of aquifer, water and environment, water and agriculture, the role of models and their application, and water management policies and issues. The book describes remote sensing (RS) applications, geographical information systems (GIS), and electrical resistivity methods to delineate groundwater potential zones. It also takes a look at: Inverse modeling (pilot-points method) Simulation optimization models Radionuclide migration studies through mass transport modeling Modeling for mapping groundwater potential Modeling for vertical 2-D and 3-D groundwater flow Groundwater Assessment, Modeling, and Management explores the management of water resources and the impact of climate change on groundwater. Expert contributors provide practical information on hydrologic engineering and groundwater resources management for students, researchers, scientists, and other practicing professionals in environmental engineering, hydrogeology, irrigation, geophysics, and environmental science.
Download or read book Geophysical Abstracts written by Geological Survey (U.S.) and published by . This book was released on 1969 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geophysical Abstracts written by and published by . This book was released on 1969-07 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potential Theory in Applied Geophysics written by Kalyan Kumar Roy and published by Springer Science & Business Media. This book was released on 2007-11-15 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the principles of gravitational, magnetic, electrostatic, direct current electrical and electromagnetic fields, with detailed solutions of Laplace and electromagnetic wave equations by the method of separation of variables. Discussion includes behaviours of the scalar and vector potential and the nature of the solutions of these boundary value problems, along with the use of complex variables and conformal transformation, Green's theorem, Green's formula and Green's functions.
Download or read book Use of Dar Zarrouk Curves in the Interpretation of Vertical Electrical Sounding Data written by Adel A. R. Zohdy and published by . This book was released on 1974 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dar Zarrouk curves are used to define the limits of equivalence for multilayer sections, to improve fit between theoretical geological and geophysical constraints in interpreted geoelectrical models.
Download or read book Groundwater Hydrology written by David Keith Todd and published by John Wiley & Sons. This book was released on 2004-08-06 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thorough, up-to-date guide to groundwater science and technology Our understanding of the occurrence and movement of water under the Earth's surface is constantly advancing, with new models, improved drilling equipment, new research, and refined techniques for managing this vital resource. Responding to these tremendous changes, David Todd and new coauthor Larry Mays equip readers with a thorough and up-to-date grounding in the science and technology of groundwater hydrology. Groundwater Hydrology, Third Edition offers a unified presentation of the field, treating fundamental principles, methods, and problems as a whole. With this new edition, you'll be able to stay current with recent developments in groundwater hydrology, learn modern modeling methods, and apply what you've learned to realistic situations. Highlights of the Third Edition * New example problems and case studies, as well as problem sets at the end of each chapter. * A special focus on modern groundwater modeling methods, including a new chapter on modeling (Chapter 9), which describes the U. S. Geological Survey MODFLOW model. * Over 300 new figures and photos. * Both SI and U.S. customary units in the example problems. * Expanded coverage of groundwater contamination by chemicals. * New references at the end of each chapter, which provide sources for research and graduate study. Student and instructor resources for this text are available on the book's website at www.wiley.com/college/todd.
Download or read book Groundwater and Society written by Pravat Kumar Shit and published by Springer Nature. This book was released on 2021-03-12 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume advances the scientific understanding, development, and application of geospatial technologies related to groundwater resource management, mapping, monitoring, and modelling using up-to-date remote sensing and GIS techniques. The book further provides a critical analysis of the debates and discourses surrounding groundwater resources and society, illustrates the relationship between groundwater resources and precision agriculture for societal development, and describes novel, region-specific management strategies and techniques for sustainability with case studies. The book is organized into three parts: (I) Groundwater resources and societal development; (II) Groundwater availability, quality and pollution; and (III) Sustainable groundwater resources management. Each section begins with a short introduction that includes an overview of the papers in that section. Individual chapters focus on the core themes of research and knowledge along with some topics that have received lesser attention. The book will be of interest to water resource planners and decision-makers, academic researchers, policy makers, NGOs, and academic researchers and students in Geography, Geophysics, Hydrology, Remote Sensing & GIS, Agriculture, Soil Science, and Agronomy.
Download or read book Mineral Exploration written by K. Srinivasamoorthy and published by New India Publishing. This book was released on 2007 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Key Lectures *Strategy for Exploration and Exploitation of Placer Mineral in India: G.V.Rajamanickam *Exploration for Platinum Group Elements in Peninsular India Status Problems & Scope: Balaram *Understanding the Ore Forming Processes Key to Mineral Exploration: M.S.Pandian *Hyperspectral Remote Sensing: S.Sanjeevi *Total Quality Management (T.q.m.) in Evaluation of Granite Deposits: G.B.Sukumaran
Download or read book Environmental Geophysics written by Dieter Vogelsang and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applied geophysics were developed to explore the raw materials needed by civilization. Today it is used to investigate the extent and nature of buried contaminated waste and leachates. The book describes in detail, yet in a simple language, possibilities, advantages and shortcomings of geophysical methods. Case histories from the US and all over the world are discussed and richly illustrated, and cost estimates for geophysical surveys and criteria for the choice of methods and the compilation of tenders are provided. The book will enable engineers, scientists and lawyers to appraise the possibilities of geophysics in the assessment of environmental risks.
Download or read book Handbook of Geophysical Cavity locating Techniques with Emphasis on Electrical Resistivity written by Keith G. Kirk and published by . This book was released on 1981 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is primarily a description of the methodology of using earth resistivity techniques for locating cavities. Only a small portion of the handbook will be devoted to the theoretical considerations behind these techniques. However, the annotated bibliography cites ample literature to satisfy the needs of the theoretician. Along with earth resistivity techniques, several geophysical techniques will be examined in lesser detail with respect to cavity location. Micro-gravity, high-resolution seismic reflection profiling, and ground probing radar were selected because they show good success rates in cavity detection. High-resolution seismic profiling shows particularly good promise as an effective tool in cavity location. Techniques in photo interpretation will also be discussed with regard to possible cavity location.
Download or read book Application of Surface geophysical Methods to Investigations of Sand and Gravel Aquifers in the Glaciated Northeastern United States written by F. P. Haeni and published by . This book was released on 1995 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geophysics Field Measurements written by and published by Academic Press. This book was released on 1987-09-24 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geophysics Field Measurements
Download or read book Deep Crustal Structure of the Son Narmada Tapti Lineament Central India written by G. Dhanunjaya Naidu and published by Springer Science & Business Media. This book was released on 2012-04-13 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: With a length of about 1200 km, the Son-Narmada-Tapti Lineament (NSL) is one of the most prominent geomorphic features in the Indian subcontinent. Anomalous conductive bodies are delineated at mid-lower crustal depths below major earthquake epicentral zones. The region has been interpreted as the collision zone of the Indian Plate with the Eurasian Plate. The NSL zone is therefore also known to be the second most important tectonic feature in the Indian geology, after the Himalayas. The present thesis describes significant new insight into the seismotectonics of this Central India tectonic zone, based on thorough magnetotelluric studies. The main objectives of the present study are: (i) to delineate subtrappean sediments across the NSL region along four different traverses, (ii) to understand the characterization of geo-electrical structure of the crust and examine the nature of geo-electrical signatures of the known faults, (iii) to integrate the results with other geophysical data such as seismicity, gravity and heat flow, in order to understand the tectonic scenario of the region. Deep electromagnetic (magnetotelluric) analyses were integrated in this study with gravity, seismic and heat flow studies and distinct, delineated deep crustal features. The resulting high conductivity is justified with the presence of fluids at mid-lower crustal depths. The migration of these fluids from mantle to mid-lower crustal depths through pre-existing brittle fracture/fault zones were obviously caused by the plume related to the Deccan volcanism. Migration of the fluids generated a higher fluid pressure along the faults and resulted in earthquakes. Based on the geo-electric sections derived along the four traverses of the Narmada-Son Lineament Zone, the present study gives important clues on the subduction/collision history in this important tectonic zone.
