Multiscale Seismic Tomography PDF Download
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Author | : Dapeng Zhao |
Publisher | : Springer |
Total Pages | : 315 |
Release | : 2015-02-20 |
Genre | : Science |
ISBN | : 4431553606 |
Download Multiscale Seismic Tomography Book in PDF, ePub and Kindle
This book on multiscale seismic tomography, written by one of the leaders in the field, is suitable for undergraduate and graduate students, researchers, and professionals in Earth and planetary sciences who need to broaden their horizons about seismotectonics, volcanism, and interior structure and dynamics of the Earth and Moon. It describes the state-of-the-art in seismic tomography, with emphasis on the new findings obtained by applying tomographic methods in local, regional, and global scales for understanding the generating mechanism of large and great earthquakes such as the 2011 Tohoku-oki earthquake (Mw 9.0), crustal and upper mantle structure, origin of active arc volcanoes and intraplate volcanoes including hotspots, heterogeneous structure of subduction zones, fate of subducting slabs, origin of mantle plumes, mantle convection, and deep Earth dynamics. The first lunar tomography and its implications for the mechanism of deep moonquakes and lunar evolution are also introduced.
Author | : H.M. Iyer |
Publisher | : Springer Science & Business Media |
Total Pages | : 890 |
Release | : 1993-05-31 |
Genre | : Science |
ISBN | : 9780412371905 |
Download Seismic Tomography Book in PDF, ePub and Kindle
This book provides a systematic review of tomographic applications in seismology and the future directions. Theories and case histories are discussed by the international authors, drawing on their own practical experiences with global and local case histories.
Author | : Ivan Koulakov |
Publisher | : |
Total Pages | : |
Release | : 2012 |
Genre | : Science |
ISBN | : |
Download Multiscale Seismic Tomography Imaging of Volcanic Complexes Book in PDF, ePub and Kindle
Multiscale Seismic Tomography Imaging of Volcanic Complexes.
Author | : Yu-Pin Lin |
Publisher | : Springer |
Total Pages | : 115 |
Release | : 2017-06-16 |
Genre | : Science |
ISBN | : 9811050686 |
Download Isotropic and Anisotropic Seismic Tomography Using Active Source and Earthquake Records Book in PDF, ePub and Kindle
This book presents investigations on the Earth's seismic structure using both active-source and natural earthquake records. It discusses the ground-truth data obtained from the TAiwan Integrated GEodynamics Research (TAIGER) active-source experiments that provides excellent and unique insights into the shallow crustal structures beneath Taiwan. It also explores the full-wave sensitivity kernels, which account for the effects of all possible wave interferences involved in shear-wave splitting and therefore loosen the restrictions on source-receiver geometry amenable to shear-wave splitting analysis. Moreover, it describes the 3D Fréchet kernels, which enable us to resolve the vertical and lateral variations in seismic anisotropy and obtain 3D images of the Earth's anisotropic structure, as well as the practice in Southern California that enables us to infer the state of the stress and strain in the lithosphere and the dynamics of the asthenospheric mantle flow for a better understanding of the strength and deformation in the upper mantle beneath the San Andreas Fault system.
Author | : Guust Nolet |
Publisher | : Springer Science & Business Media |
Total Pages | : 406 |
Release | : 1987-06-30 |
Genre | : Science |
ISBN | : 9789027725219 |
Download Seismic Tomography Book in PDF, ePub and Kindle
Methods to eonstruet images of an objeet from "projeetions" of x-rays, ultrasound or eleetromagnetie waves have found wide applieations in eleetron mieroseopy, diagnostie medicine and radio astronomy. Projeetions are measurable quantities that are a funetiona- usually involving a line integral - of physieal properties of an objeet. Convolutional methods, or iterative algorithms to solve large systems of linear equations are used to reeonstruet the objeet. In prineiple, there is no reasan why similar image reeonstruetions ean not be made with seismie waves. In praetiee, seismic tomography meets with a number of diffieulties, and it is not until the last deeade that imaging of transmitted seismie waves has found applicatian in the Earth sciences. The most important differenee between global seismie tomography and mare eonventional applieations in the laboratory is the faet that the seismologist is eonfronted with the lack of anything resembling a well-eontrolled experimental set-up. Apart from a few nuelear tests, it is not in our power to locate or time seismie events. Apart from a few seabattom seismographs, our sensors are located on land -and even there the availability of data depends on eultural and politieal factors. Even in exploratian seismics, praetieal faetors such as the east of an experiment put strong limitations on the eompleteness of the data set.
Author | : Tien-when Lo |
Publisher | : SEG Books |
Total Pages | : 187 |
Release | : 1994 |
Genre | : Seismic tomography |
ISBN | : 1560800283 |
Download Fundamentals of Seismic Tomography Book in PDF, ePub and Kindle
This tutorial serves as a practical guide on seismic tomography for an audience familiar with basic seismology concepts and calculus. The intent is to provide the reader with a fundamental understanding of both seismic-ray tomography and seismic-diffraction tomography. Case studies illustrate processing methodology, basic interpretation techniques, and pitfalls. This presentation assists the reader in gaining a greater understanding of and appreciation for seismic-tomography articles found in the literature.
Author | : Kalachand Sain |
Publisher | : John Wiley & Sons |
Total Pages | : 148 |
Release | : 2023-02-01 |
Genre | : Science |
ISBN | : 1119594863 |
Download Active Seismic Tomography Book in PDF, ePub and Kindle
Imaging complex regions or difficult terrains like the sub-volcanic sediments or thrust fold belt areas is crucial to understanding the earth's subsurface. Active Seismic Tomography: Theory and Applications describes current technologies for the study of seismic velocities and the elucidation of fine details of the subsurface. Key use cases include hydrocarbon reservoir characterization, identification of faults and channels, and stratigraphic and structural traps. Volume highlights include: Theory and development of seismic tomography Numerous examples of the interpretation and analysis of active source seismic data Relevance of tomography data for computational geophysicists This volume is a valuable resource for academics and professionals interested in using or developing integrated imaging approaches of the Earth's subsurface.
Author | : Robert R. Stewart |
Publisher | : |
Total Pages | : 212 |
Release | : 1991 |
Genre | : Fourier transformations |
ISBN | : |
Download Exploration Seismic Tomography Book in PDF, ePub and Kindle
This volume assists geophysicists in both implementing and evaluating DMO processing. It discusses the theory, motives, and limitations underlying the most popular DMO methods.
Author | : Yanghua Wang |
Publisher | : Elsevier |
Total Pages | : 271 |
Release | : 2003-02-25 |
Genre | : Science |
ISBN | : 0080540872 |
Download Seismic Amplitude Inversion in Reflection Tomography Book in PDF, ePub and Kindle
This is the first book of its kind on seismic amplitude inversion in the context of reflection tomography. The aim of the monograph is to advocate the use of ray-amplitude data, separately or jointly with traveltime data, in reflection seismic tomography. The emphasis of seismic exploration is on imaging techniques, so that seismic section can be interpreted directly as a geological section. In contrast it is perhaps ironic that, in decades of industrial seismology, one major aspect of waveform data that potentially is easier to measure and analyse has generally been ignored. That is, the information content of seismic amplitudes. Perhaps the potential complexity has deterred most researchers from a more thorough investigation of the practical use of seismic amplitude data. The author of this volume presents an authoritative and detailed study of amplitude data, as used in conjunction with traveltime data, to provide better constraints on the variation of seismic wave speed in the subsurface. One of the fundamental problems in conventional reflection seismic tomography using only traveltime data is the possible ambiguity between the velocity variation and the reflector depth. The inclusion of amplitude data in the inversion may help to resolve this problem because the amplitudes and traveltimes are sensitive to different features of the subsurface model, and thereby provide more accurate information about the subsurface structure and the velocity distribution. An essential goal of this monograph is to make the amplitude inversion method work with real reflection seismic data.
Author | : |
Publisher | : |
Total Pages | : 12 |
Release | : 2009 |
Genre | : |
ISBN | : |
Download Multi-Resolution Seismic Tomography Based on Recursive Tessellation Hierarchy Book in PDF, ePub and Kindle
A 3-D global tomographic model that reconstructs velocity structure at multiple scales and incorporates laterally variable seismic discontinuities is currently being developed. The model parameterization is node-based where nodes are placed along vertices defined by triangular tessellations of a spheroidal surface. The triangular tessellation framework is hierarchical. Starting with a tetrahexahedron representing the whole globe (1st level of the hierarchy, 24 faces), they divide each triangle of the tessellation into daughter triangles. The collection of all daughter triangles comprises the 2nd level of the tessellation hierarchy and further recursion produces an arbitrary number of tessellation levels and arbitrarily fine node-spacing. They have developed an inversion procedure that takes advantage of the recursive properties of the tessellation hierarchies by progressively solving for shorter wavelength heterogeneities. In this procedure, we first perform the tomographic inversion using a tessellation level with coarse node spacing. They find that a coarse node spacing of approximately 8{sup o} is adequate to capture bulk regional properties. They then conduct the tomographic inversion on a 4{sup o} tessellation level using the residuals and inversion results from the 8{sup o} run. In practice they find that the progressive tomography approach is robust, providing an intrinsic regularization for inversion stability and avoids the issue of predefining resolution levels. Further, determining average regional properties with coarser tessellation levels enables long-wavelength heterogeneities to account for sparsely sampled regions (or regions of the mantle where longer wavelength patterns of heterogeneity suffice) while allowing shorter length-scale heterogeneities to emerge where necessary. They demonstrate the inversion approach with a set of synthetic test cases that mimic the complex nature of data arrangements (mixed-determined inversion) common to most tomographic problems. They also apply the progressive inversion approach with Pn waves traveling within the Middle East region and compare the results to simple tomographic inversions. As expected from synthetic testing, the progressive approach results in detailed structure where there is high data density and broader regional anomalies where seismic information is sparse. The ultimate goal is to use these methods to produce a seamless, multi-resolution global tomographic model with local model resolution determined by the constraints afforded by available data. They envisage this new technique as the general approach to be employed for future multi-resolution model development with complex arrangements of regional and teleseismic information.