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Books in Geophysics

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Advances in Geophysics

  • 1st Edition
  • Volume 45
  • August 21, 2002
  • Renata Dmowska + 1 more
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 5 2 6 7 4 - 4
Advances in Geophysics Volume 45 presents two main topics of noted interest to the geophysical community. The first topic is ice particles in the atmosphere. Mathematical descriptions of ice particle shapes, their growth rates, and their influence on cloud development are presented. The second topic is earthquakes and seismological mapping. The authors present their research involving predicting the location and intensity of earthquakes.

Three-Dimensional Electromagnetics

  • 1st Edition
  • Volume 35
  • July 8, 2002
  • P.E. Wannamaker + 1 more
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 5 4 2 9 9 - 7
"3-D modeling and inversion is a reality, and not an illusion." This is the clear conclusion of the Second International Symposium on Three-Dimensional Electromagnetics held at the University of Utah in 1999. Containing papers submitted by 36 authors, this volume, by the sheer number of works, their diversity, and the truly international character of the efforts attests to the vigor with which the problems of the field are pursued today.The papers in this book are grouped in three parts: 3-D EM modeling; 3-D EM inversion; and 3-D EM in practice. They cover a wide range of topics in forward modeling and inversion based on new fast approximate approaches and new efficient solutions by integral equation, finite difference and finite elements techniques. If the 1980s were the decade of rapid development in 3D seismics, the 1990s became the decade of growing interest of practical geophysicists in 3D EM modeling and inversion methods.The contributions contained in this volume represent a snapshot of today's state-of-the-art in three-dimensional electromagnetics.

Geophysical Inverse Theory and Regularization Problems

  • 1st Edition
  • April 24, 2002
  • Michael S. Zhdanov
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 5 3 2 5 0 - 9
This book presents state-of-the-art geophysical inverse theory developed in modern mathematical terminology. The book brings together fundamental results developed by the Russian mathematical school in regularization theory and combines them with the related research in geophysical inversion carried out in the West. It presents a detailed exposition of the methods of regularized solution of inverse problems based on the ideas of Tikhonov regularization, and shows the different forms of their applications in both linear and nonlinear methods of geophysical inversion. This text is the first to treat many kinds of inversion and imaging techniques in a unified mathematical manner.The book is divided in five parts covering the foundations of the inversion theory and its applications to the solution of different geophysical inverse problems, including potential field, electromagnetic, and seismic methods. The first part is an introduction to inversion theory. The second part contains a description of the basic methods of solution of the linear and nonlinear inverse problems using regularization. The following parts treat the application of regularization methods in gravity and magnetic, electromagnetic, and seismic inverse problems. The key connecting idea of these applied parts of the book is the analogy between the solutions of the forward and inverse problems in different geophysical methods. The book also includes chapters related to the modern technology of geophysical imaging, based on seismic and electromagnetic migration.This volume is unique in its focus on providing a link between the methods used in gravity, electromagnetic, and seismic imaging and inversion, and represents an exhaustive treatise on inversion theory.

Nuclear Magnetic Resonance

  • 1st Edition
  • Volume 32
  • January 25, 2002
  • K.-J. Dunn + 2 more
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 5 3 7 7 9 - 5
The applications of nuclear magnetic resonance (NMR) to petroleum exploration and production have become more and more important in recent years. The development of the NMR logging technology and the NMR applications to core analysis and formation evaluation have been very rapid and extensive.The scope of this book covers a wide range of NMR related petrophysical measurements on cores including brief descriptions of recent applications of Magic Angle Spinning (MAS) NMR and the basics of NMR imaging of cores. In the discussion of NMR logging applications various schemes of using NMR logs to obtain necessary information for formation evaluation are outlined, such as irreducible water saturation determination, hydrocarbon typing, oil viscosity estimation, and permeability prediction. The principles of these applications are discussed using schematic diagrams for illustration.A unique aspect of the book is that it provides a detailed account of the basic principles of spin diffusion and relaxation in porous media. Another important area that is covered is the inversion of NMR data into a distribution of amplitudes associated with relaxation time which provides the basic information needed to interpret the NMR measurements obtained from logging.

Wave Fields in Real Media

  • 1st Edition
  • Volume 31
  • October 15, 2001
  • José M. Carcione
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 5 4 3 7 1 - 0
This book examines the differences between an ideal and a real description of wave propagation, where ideal means an elastic (lossless), isotropic and single-phase medium, and real means an anelastic, anisotropic and multi-phase medium. The analysis starts by introducing the relevant stress-strain relation. This relation and the equations of momentum conservation are combined to give the equation of motion. The differential formulation is written in terms of memory variables, and Biot's theory is used to describe wave propagation in porous media. For each rheology, a plane-wave analysis is performed in order to understand the physics of wave propagation. The book contains a review of the main direct numerical methods for solving the equation of motion in the time and space domains. The emphasis is on geophysical applications for seismic exploration, but researchers in the fields of earthquake seismology, rock acoustics, and material science - including many branches of acoustics of fluids and solids - may also find this text useful.

Computational Neural Networks for Geophysical Data Processing

  • 1st Edition
  • Volume 30
  • June 13, 2001
  • M.M. Poulton
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 5 2 9 6 5 - 3
This book was primarily written for an audience that has heard about neural networks or has had some experience with the algorithms, but would like to gain a deeper understanding of the fundamental material. For those that already have a solid grasp of how to create a neural network application, this work can provide a wide range of examples of nuances in network design, data set design, testing strategy, and error analysis.Computational, rather than artificial, modifiers are used for neural networks in this book to make a distinction between networks that are implemented in hardware and those that are implemented in software. The term artificial neural network covers any implementation that is inorganic and is the most general term. Computational neural networks are only implemented in software but represent the vast majority of applications.While this book cannot provide a blue print for every conceivable geophysics application, it does outline a basic approach that has been used successfully.

Seismic Signatures and Analysis of Reflection Data in Anisotropic Media

  • 1st Edition
  • Volume 29
  • March 2, 2001
  • I. Tsvankin
  • English
  • Hardback
    9 7 8 - 0 - 0 8 - 0 4 3 6 4 9 - 4
  • eBook
    9 7 8 - 0 - 0 8 - 0 5 4 0 8 8 - 7
Following the breakthrough in the last decade in identifying the key parameters for time and depth imaging in anisotropic media and developing practical methodologies for estimating them from seismic data, this title primarily focuses on the far reaching exploration benefits of anisotropic processing.This volume provides the first comprehensive description of reflection seismic signatures and processing methods in anisotropic media. It identifies the key parameters for time and depth imaging in transversely isotropic media and describes practical methodologies for estimating them from seismic data. Also, it contains a thorough discussion of the important issues of uniqueness and stability of seismic velocity analysis in the presence of anisotropy. The book contains a complete description of anisotropic imaging methods, from the theoretical background to algorithms to implementation issues. Numerous applications to synthetic and field data illustrate the improvements achieved by the anisotropic processing and the possibility of using the estimated anisotropic parameters in lithology discrimination.

Earth Magnetism

  • 1st Edition
  • February 7, 2001
  • Wallace H. Campbell
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 5 0 4 9 0 - 2
An introductory guide to global magnetic field properties, Earth Magnetism addresses, in non-technical prose, many of the frequently asked questions about Earth's magnetic field. Magnetism surrounds and penetrates our Earth in ways basic science courses can rarely address. It affects navigation, communication, and even the growth of crystals. As we observe and experience an 11-year solar maximum, we may witness spectacular satellite-destroying solar storms as they interact with our magnetic field. Written by an acknowledged expert in the field, this book will enrich courses in earth science, atmospheric science, geology, meteorology, geomagnetism, and geophysics. Contains nearly 200 original illustrations and eight pages of full-color plates.

Advances in Geophysics

  • 1st Edition
  • Volume 43
  • October 17, 2000
  • Barry Saltzman + 1 more
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 5 2 6 7 3 - 7
This series provides a venue for longer reviews of current advances in geophysics. Written at a level accessible to graduate students, the articles serve to broaden knowledge of various fields and may be useful in courses and seminars.

Advances in Geophysics

  • 1st Edition
  • Volume 44
  • October 17, 2000
  • Renata Dmowska + 1 more
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 5 2 2 3 4 - 0
This series provides a venue for longer reviews of current advances in geophysics. Written at a level accessible to graduate students, the articles serve to broaden knowledge of various fields and may be useful in courses and seminars.

Related subjects

Applied geophysics

Crustal and mantle geophysics

Geomagnetism

Geothermics

Gravity geodesy

Seismic exploration

Seismology

Tectonophysics