Collection And Analysis Of Seismic Wave Propagation Data

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Collection and Analysis of Seismic Wave Propagation Data

Author : David E. Willis
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Collection and Analysis of Seismic Wave Propagation Data by : David E. Willis

Download or read book Collection and Analysis of Seismic Wave Propagation Data written by David E. Willis and published by . This book was released on 1966 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report summarizes one year of theoretical and applied research on propagation of seismic waves and techniques for analyzing data. The main objectives were to determine the frequency and energy of seismic signatures, and investigate attenuation, patterns of azimuthal radiation from source regions, and methods of determining the type of motion at the source. Natural and artificial sources were studied to develop diagnostic aids for distinguishing between earthquakes and underground nuclear detonations. Equipment for selection, reformatting, and digital-to-analog conversion for digitally recorded LASA data was constructed and is being checked out. Several approaches for using the parallel computational capabilities of optics for LASA data were developed. A study of background noise and reciprocity for teleseismic events as recorded on the bottom of a large fresh water lake has commenced with the emplacement of three-component seismometers in Lake Superior. Array data have been used for crustal studies on the Eastern United States. Digital mode filtering was investigated. A perturbation theory for seismic sources was developed. (Author).

Collection and Analysis of Seismic Wave Propagation Data

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (841 download)

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Book Synopsis Collection and Analysis of Seismic Wave Propagation Data by :

Download or read book Collection and Analysis of Seismic Wave Propagation Data written by and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Collection and Analysis of Seismic-wave Propagation Data

Author :
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Collection and Analysis of Seismic-wave Propagation Data by :

Download or read book Collection and Analysis of Seismic-wave Propagation Data written by and published by . This book was released on 1968 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report discusses the results of an extensive long-range reversed refraction profile which traverses the Michigan Basin and the Appalachian Mountains. Particular emphasis is placed on the attenuation of first compressional wave arrivals and on crustal-upper mantle structure. Also included are results of a survey on lake bottom seismic background noise in Lake Superior. Although large signal levels were obtained in the lake bottom, long periods of high background noise indicated that land based seismographs are superior. Theoretical studies in elastic wave scattering were made to evaluate the effect of nonhomogeneities on the propagation of elastic waves. Theoretical development of mode filtering (previously demonstrated empirically), is nearly completed. A LASA digital data convertor was designed, constructed, and put into operation. Two- and three-dimensional seismic ray-tracing techniques using digital modeling were developed. These techniques enable the seismologist to determine the effects of lateral inhomogeneities and irregularities in velocity interfaces on travel time and attenuation of seismic waves. (Author).

Numerical Modeling of Seismic Wave Propagation

Author : Johan O. A. Robertsson
Publisher : SEG Books
ISBN 13 : 1560802901
Total Pages : 115 pages
Book Rating : 4.5/5 (68 download)

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Book Synopsis Numerical Modeling of Seismic Wave Propagation by : Johan O. A. Robertsson

Download or read book Numerical Modeling of Seismic Wave Propagation written by Johan O. A. Robertsson and published by SEG Books. This book was released on 2012 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: The decades following SEG's 1990 volume on numerical modeling showed a step change in the application and use of full wave equation modeling methods enabled by the increase in computational power. Full waveform inversion, reverse time migration, and 3D elastic finite-difference synthetic data generation are examples. A searchable CD is included.

Collection and Analysis of Seismic Wave Propagation Data

Author : David E. Willis
Publisher :
ISBN 13 :
Total Pages : 83 pages
Book Rating : 4.:/5 (221 download)

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Book Synopsis Collection and Analysis of Seismic Wave Propagation Data by : David E. Willis

Download or read book Collection and Analysis of Seismic Wave Propagation Data written by David E. Willis and published by . This book was released on 1968 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report discusses the results of an extensive long-range reversed refraction profile which traverses the Michigan Basin and the Appalachian Mountains. Particular emphasis is placed on the attenuation of first compressional wave arrivals and on crustal-upper mantle structure. Also included are results of a survey on lake bottom seismic background noise in Lake Superior. Although large signal levels were obtained in the lake bottom, long periods of high background noise indicated that land based seismographs are superior. Theoretical studies in elastic wave scattering were made to evaluate the effect of nonhomogeneities on the propagation of elastic waves. Theoretical development of mode filtering (previously demonstrated empirically), is nearly completed. A LASA digital data convertor was designed, constructed, and put into operation. Two- and three-dimensional seismic ray-tracing techniques using digital modeling were developed. These techniques enable the seismologist to determine the effects of lateral inhomogeneities and irregularities in velocity interfaces on travel time and attenuation of seismic waves. (Author).

Collection and Analysis of Seismic Wave Propagation Data. Supplement 1: Analog Computer Measurement of Time-varying Power Spectra

Author : Vernon L. Larrowe
Publisher :
ISBN 13 :
Total Pages : 215 pages
Book Rating : 4.:/5 (786 download)

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Book Synopsis Collection and Analysis of Seismic Wave Propagation Data. Supplement 1: Analog Computer Measurement of Time-varying Power Spectra by : Vernon L. Larrowe

Download or read book Collection and Analysis of Seismic Wave Propagation Data. Supplement 1: Analog Computer Measurement of Time-varying Power Spectra written by Vernon L. Larrowe and published by . This book was released on 1966 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Collection and Analysis of Seismic Wave Propagation Data. Supplement 2: an Error Analysis of Digital Equalizing Filters

Author : John F. HEMDAL
Publisher :
ISBN 13 :
Total Pages : 25 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Collection and Analysis of Seismic Wave Propagation Data. Supplement 2: an Error Analysis of Digital Equalizing Filters by : John F. HEMDAL

Download or read book Collection and Analysis of Seismic Wave Propagation Data. Supplement 2: an Error Analysis of Digital Equalizing Filters written by John F. HEMDAL and published by . This book was released on 1966 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Present day computer systems allow computation of an approximate Wiener operator for the time-domain filtering and smoothing of signals of finite and short length. However, the memory capacity of a particular computer storage introduces a constraint on the length of the operator and signal. To produce the least mean-square-error, it was helpful to know the extent to which the length of the operator should be compromised by including additional information(sample points) of the signal. If N is the number of samples of the signal to be equalized and T is the number of points in the optimum digital operator then the system imposes the constraint that KN + T(2)

Collection and Analysis of Seismic Wave Propagation Data. Supplement 4: Two-dimensional Waves in an Infinite Medium Bounded Internally by a Harmonically Pressurized Ellipse

Download Collection and Analysis of Seismic Wave Propagation Data. Supplement 4: Two-dimensional Waves in an Infinite Medium Bounded Internally by a Harmonically Pressurized Ellipse PDF Online Free

Author : Henry N. Pollack
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Collection and Analysis of Seismic Wave Propagation Data. Supplement 4: Two-dimensional Waves in an Infinite Medium Bounded Internally by a Harmonically Pressurized Ellipse by : Henry N. Pollack

Download or read book Collection and Analysis of Seismic Wave Propagation Data. Supplement 4: Two-dimensional Waves in an Infinite Medium Bounded Internally by a Harmonically Pressurized Ellipse written by Henry N. Pollack and published by . This book was released on 1966 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper studies the role of the cavity shape in determining the two-dimensional far-field radiation from a pressurized source. The radiation patterns are obtained for both the longitudinal and transverse waves radiating from an elliptical region that varies from a line source to a circular source. The results of several cases show that: (1) for all noncicular boundzries the shear wave exists and consistently shows a four-lobed pattern of alternate polarity. (2) the ratio of wavelength to cavity ecicumference and the cavity shape (ellipticity) have a strong influence on the radiation patter. (Author).

Collection and Analysis of Seismic Wave Propagation Data. Supplement 3: Scattering of Elastic Plane Waves by an Elliptical Inclusion Or Cavity

Download Collection and Analysis of Seismic Wave Propagation Data. Supplement 3: Scattering of Elastic Plane Waves by an Elliptical Inclusion Or Cavity PDF Online Free

Author : Ivor K. McIvor
Publisher :
ISBN 13 :
Total Pages : 23 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Collection and Analysis of Seismic Wave Propagation Data. Supplement 3: Scattering of Elastic Plane Waves by an Elliptical Inclusion Or Cavity by : Ivor K. McIvor

Download or read book Collection and Analysis of Seismic Wave Propagation Data. Supplement 3: Scattering of Elastic Plane Waves by an Elliptical Inclusion Or Cavity written by Ivor K. McIvor and published by . This book was released on 1966 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Previous studies of the scattering of elastic waves have been limited to spherical and cylindrical scatterers. The present study is an investigation of the scattering of a plane compressional wave incident from an arbitrary direction on an elliptical obstacle (either cavity or a rigid inclusion). By varying the ellipticity, shapes ranging from the finite-length slit to the cylinder may be considered. Analytical solutions are obtained for the scattered displacements in the form of product series expansions valid throughout the entire media. Due to the interaction of P-waves and S-waves at the boundary of the scatterer, the boundary conditions are not separable. As a consequence the coefficients of the series solution are determined from a coupled, infinite system of algebraic equations. The solutions are highly convergent, however, and the system can be truncated to a reasonable size for numerical computation. In addition, simplified asymptotic solutions are given for the far-field displacements. It is found that the scattered displacements attenuate like r to the minus one-half power, with the radial displacement associated with the dilatational potential and the tangential displacement associated with the shear potential. The asymptotic solutions are used to obtain the scattered radiation pattern in the far field. Finally, for the special case of a slit the radiation patterns for different directions of incident wave and different ratios of wave length to slit length are compared. (Author).

Seismic Waves

Author : Masaki Kanao
Publisher : BoD – Books on Demand
ISBN 13 : 9533079444
Total Pages : 340 pages
Book Rating : 4.5/5 (33 download)

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Book Synopsis Seismic Waves by : Masaki Kanao

Download or read book Seismic Waves written by Masaki Kanao and published by BoD – Books on Demand. This book was released on 2012-01-25 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of seismic wave research lies not only in our ability to understand and predict earthquakes and tsunamis, it also reveals information on the Earth's composition and features in much the same way as it led to the discovery of Mohorovicic's discontinuity. As our theoretical understanding of the physics behind seismic waves has grown, physical and numerical modeling have greatly advanced and now augment applied seismology for better prediction and engineering practices. This has led to some novel applications such as using artificially-induced shocks for exploration of the Earth's subsurface and seismic stimulation for increasing the productivity of oil wells. This book demonstrates the latest techniques and advances in seismic wave analysis from theoretical approach, data acquisition and interpretation, to analyses and numerical simulations, as well as research applications. A review process was conducted in cooperation with sincere support by Drs. Hiroshi Takenaka, Yoshio Murai, Jun Matsushima, and Genti Toyokuni.

Seismic Signatures and Analysis of Reflection Data in Anisotropic Media

Author : I. Tsvankin
Publisher : Elsevier
ISBN 13 : 9780080446189
Total Pages : 472 pages
Book Rating : 4.4/5 (461 download)

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Book Synopsis Seismic Signatures and Analysis of Reflection Data in Anisotropic Media by : I. Tsvankin

Download or read book Seismic Signatures and Analysis of Reflection Data in Anisotropic Media written by I. Tsvankin and published by Elsevier. This book was released on 2005-06-13 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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, Seismic Signatures and Analysis of Reflection Data in Anisotropic Media 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. Focuses on the far reaching exploration benefits of anisotropic processing First comprehensive description of reflection seismic signatures and processing methods in anisotropic media

Seismic Wave Propagation and Scattering in the Heterogenous Earth

Author : Haruo Sato
Publisher : Springer Science & Business Media
ISBN 13 : 3540896236
Total Pages : 308 pages
Book Rating : 4.5/5 (48 download)

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Book Synopsis Seismic Wave Propagation and Scattering in the Heterogenous Earth by : Haruo Sato

Download or read book Seismic Wave Propagation and Scattering in the Heterogenous Earth written by Haruo Sato and published by Springer Science & Business Media. This book was released on 2008-12-17 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seismic waves – generated both by natural earthquakes and by man-made sources – have produced an enormous amount of information about the Earth's interior. In classical seismology, the Earth is modeled as a sequence of uniform horizontal layers (or sperical shells) having different elastic properties and one determines these properties from travel times and dispersion of seismic waves. The Earth, however, is not made of horizontally uniform layers, and classic seismic methods can take large-scale inhomogeneities into account. Smaller-scale irregularities, on the other hand, require other methods. Observations of continuous wave trains that follow classic direct S waves, known as coda waves, have shown that there are heterogeneities of random size scattered randomly throughout the layers of the classic seismic model. This book focuses on recent developments in the area of seismic wave propagation and scattering through the randomly heterogeneous structure of the Earth, with emphasis on the lithosphere. The presentation combines information from many sources to present a coherent introduction to the theory of scattering in acoustic and elastic materials and includes analyses of observations using the theoretical methods developed.

Seismic Wave Propagation

Author : J. E. White
Publisher : SEG Books
ISBN 13 : 1560800968
Total Pages : 395 pages
Book Rating : 4.5/5 (68 download)

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Book Synopsis Seismic Wave Propagation by : J. E. White

Download or read book Seismic Wave Propagation written by J. E. White and published by SEG Books. This book was released on 2000 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt:

An Introduction to Seismology, Earthquakes, and Earth Structure

Author : Seth Stein
Publisher : John Wiley & Sons
ISBN 13 : 1118687450
Total Pages : 512 pages
Book Rating : 4.1/5 (186 download)

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Book Synopsis An Introduction to Seismology, Earthquakes, and Earth Structure by : Seth Stein

Download or read book An Introduction to Seismology, Earthquakes, and Earth Structure written by Seth Stein and published by John Wiley & Sons. This book was released on 2013-05-30 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Introduction to Seismology, Earthquakes and Earth Structures is an introduction to seismology and its role in the earth sciences, and is written for advanced undergraduate and beginning graduate students. The fundamentals of seismic wave propagation are developed using a physical approach and then applied to show how refraction, reflection, and teleseismic techniques are used to study the structure and thus the composition and evolution of the earth. The book shows how seismic waves are used to study earthquakes and are integrated with other data to investigate the plate tectonic processes that cause earthquakes. Figures, examples, problems, and computer exercises teach students about seismology in a creative and intuitive manner. Necessary mathematical tools including vector and tensor analysis, matrix algebra, Fourier analysis, statistics of errors, signal processing, and data inversion are introduced with many relevant examples. The text also addresses the fundamentals of seismometry and applications of seismology to societal issues. Special attention is paid to help students visualize connections between different topics and view seismology as an integrated science. An Introduction to Seismology, Earthquakes, and Earth Structure gives an excellent overview for students of geophysics and tectonics, and provides a strong foundation for further studies in seismology. Multidisciplinary examples throughout the text - catering to students in varied disciplines (geology, mineralogy, petrology, physics, etc.). Most up to date book on the market - includes recent seismic events such as the 1999 Earthquakes in Turkey, Greece, and Taiwan). Chapter outlines - each chapter begins with an outline and a list of learning objectives to help students focus and study. Essential math review - an entire section reviews the essential math needed to understand seismology. This can be covered in class or left to students to review as needed. End of chapter problem sets - homework problems that cover the material presented in the chapter. Solutions to all odd numbered problem sets are listed in the back so that students can track their progress. Extensive References - classic references and more current references are listed at the end of each chapter. A set of instructor's resources containing downloadable versions of all the figures in the book, errata and answers to homework problems is available at: http://levee.wustl.edu/seismology/book/. Also available on this website are PowerPoint lecture slides corresponding to the first 5 chapters of the book.

Seismic Wave Propagation in Stratified Media

Author : Brian Kennett
Publisher : ANU E Press
ISBN 13 : 192153673X
Total Pages : 298 pages
Book Rating : 4.9/5 (215 download)

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Book Synopsis Seismic Wave Propagation in Stratified Media by : Brian Kennett

Download or read book Seismic Wave Propagation in Stratified Media written by Brian Kennett and published by ANU E Press. This book was released on 2009-05-01 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seismic Wave Propagation in Stratified Media presents a systematic treatment of the interaction of seismic waves with Earth structure. The theoretical development is physically based and is closely tied to the nature of the seismograms observed across a wide range of distance scales - from a few kilometres as in shallow reflection work for geophysical prospecting, to many thousands of kilometres for major earthquakes. A unified framework is presented for all classes of seismic phenomena, for both body waves and surface waves. Since its first publication in 1983 this book has been an important resource for understanding the way in which seismic waves can be understood in terms of reflection and transmission properties of Earth models, and how complete theoretical seismograms can be calculated. The methods allow the development of specific approximations that allow concentration on different seismic arrivals and hence provide a direct tie to seismic observations.

Report of Conference on Seismic Propagation Study

Author : Seismic Propagation Study
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.:/5 (359 download)

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Book Synopsis Report of Conference on Seismic Propagation Study by : Seismic Propagation Study

Download or read book Report of Conference on Seismic Propagation Study written by Seismic Propagation Study and published by . This book was released on 1971 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Seismic Wave Propagation and Scattering in the Heterogeneous Earth : Second Edition

Author : Haruo Sato
Publisher : Springer Science & Business Media
ISBN 13 : 3642230296
Total Pages : 503 pages
Book Rating : 4.6/5 (422 download)

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Book Synopsis Seismic Wave Propagation and Scattering in the Heterogeneous Earth : Second Edition by : Haruo Sato

Download or read book Seismic Wave Propagation and Scattering in the Heterogeneous Earth : Second Edition written by Haruo Sato and published by Springer Science & Business Media. This book was released on 2012-01-28 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seismic waves - generated both by natural earthquakes and by man-made sources - have produced an enormous amount of information about the Earth's interior. In classical seismology, the Earth is modeled as a sequence of uniform horizontal layers (or spherical shells) having different elastic properties and one determines these properties from travel times and dispersion of seismic waves. The Earth, however, is not made of horizontally uniform layers, and classic seismic methods can take large-scale inhomogeneities into account. Smaller-scale irregularities, on the other hand, require other methods. Observations of continuous wave trains that follow classic direct S waves, known as coda waves, have shown that there are heterogeneities of random size scattered randomly throughout the layers of the classic seismic model. This book focuses on recent developments in the area of seismic wave propagation and scattering through the randomly heterogeneous structure of the Earth, with emphasis on the lithosphere. The presentation combines information from many sources to present a coherent introduction to the theory of scattering in acoustic and elastic materials and includes analyses of observations using the theoretical methods developed. The second edition especially includes new observational facts such as the spatial variation of medium inhomogeneities and the temporal change in scattering characteristics and recent theoretical developments in the envelope synthesis in random media for the last ten years. Mathematics is thoroughly rewritten for improving the readability. Written for advanced undergraduates or beginning graduate students of geophysics or planetary sciences, this book should also be of interest to civil engineers, seismologists, acoustical engineers, and others interested in wave propagation through inhomogeneous elastic media.