Full Seismic Waveform Modelling and Inversion

Full Seismic Waveform Modelling and Inversion PDF

Author: Andreas Fichtner

Publisher: Springer Science & Business Media

Published: 2010-11-16

Total Pages: 352

ISBN-13: 3642158072

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Recent progress in numerical methods and computer science allows us today to simulate the propagation of seismic waves through realistically heterogeneous Earth models with unprecedented accuracy. Full waveform tomography is a tomographic technique that takes advantage of numerical solutions of the elastic wave equation. The accuracy of the numerical solutions and the exploitation of complete waveform information result in tomographic images that are both more realistic and better resolved. This book develops and describes state of the art methodologies covering all aspects of full waveform tomography including methods for the numerical solution of the elastic wave equation, the adjoint method, the design of objective functionals and optimisation schemes. It provides a variety of case studies on all scales from local to global based on a large number of examples involving real data. It is a comprehensive reference on full waveform tomography for advanced students, researchers and professionals.

Geocomplexity and the Physics of Earthquakes

Geocomplexity and the Physics of Earthquakes PDF

Author: John Rundle

Publisher: American Geophysical Union

Published: 2000-01-10

Total Pages: 288

ISBN-13: 0875909787

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Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 120. Earthquakes in urban centers are capable of causing enormous damage. The January 16, 1995 Kobe, Japan earthquake was only a magnitude 6.9 event and yet produced an estimated $200 billion loss. Despite an active earthquake prediction program in Japan, this event was a complete surprise. Similar scenarios are possible in Los Angeles, San Francisco, Seattle, and other urban centers around the Pacific plate boundary. The development of forecast or prediction methodologies for these great damaging earthquakes has been complicated by the fact that the largest events repeat at irregular intervals of hundreds to thousands of years, resulting in a limited historical record that has frustrated phenomenological studies. The papers in this book describe an emerging alternative approach, which is based on a new understanding of earthquake physics arising from the construction and analysis of numerical simulations. With these numerical simulations, earthquake physics now can be investigated in numerical laboratories. Simulation data from numerical experiments can be used to develop theoretical understanding that can be subsequently applied to observed data. These methods have been enabled by the information technology revolution, in which fundamental advances in computing and communications are placing vast computational resources at our disposal.

Seismic Inversion

Seismic Inversion PDF

Author: Gerard T. Schuster

Publisher: SEG Books

Published: 2017-07-01

Total Pages: 377

ISBN-13: 156080341X

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This book describes the theory and practice of inverting seismic data for the subsurface rock properties of the earth. The primary application is for inverting reflection and/or transmission data from engineering or exploration surveys, but the methods described also can be used for earthquake studies. Seismic Inversion will be of benefit to scientists and advanced students in engineering, earth sciences, and physics. It is desirable that the reader has some familiarity with certain aspects of numerical computation, such as finite-difference solutions to partial differential equations, numerical linear algebra, and the basic physics of wave propagation. For those not familiar with the terminology and methods of seismic exploration, a brief introduction is provided. To truly understand the nuances of seismic inversion, we have to actively practice what we preach (or teach). Therefore, computational labs are provided for most of the chapters, and some field data labs are given as well.

CMOS

CMOS PDF

Author: R. Jacob Baker

Publisher: John Wiley & Sons

Published: 2008

Total Pages: 1074

ISBN-13: 0470229411

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This edition provides an important contemporary view of a wide range of analog/digital circuit blocks, the BSIM model, data converter architectures, and more. The authors develop design techniques for both long- and short-channel CMOS technologies and then compare the two.

Exploiting Seismic Waveforms

Exploiting Seismic Waveforms PDF

Author: Brian L. N. Kennett

Publisher: Cambridge University Press

Published: 2020-12-03

Total Pages: 505

ISBN-13: 1108830749

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Developments in seismology including correlation techniques, heterogeneity and waveform inversion, illustrated with observational examples.

Earth Soundings Analysis

Earth Soundings Analysis PDF

Author: Jon F. Claerbout

Publisher:

Published: 1993

Total Pages:

ISBN-13:

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The first work describes the analysis of echo soundings in seismic prospecting. The progress reports describe activities of the Stanford Exploration Project regarding seismic echo soundings.