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Author : WU,AKI
Publisher : Birkhäuser
Page : 192 pages
File Size : 52,7 Mb
Release : 2013-11-21
Category : Science
ISBN : 9783034863636
Reprint from Pure and Applied Geophysics (PAGEOPH), Volume 131 (1989), No. 4
Author : Anonim
Publisher : Unknown
Page : 0 pages
File Size : 49,8 Mb
Release : 1988
Category : Electronic
ISBN : OCLC:180474053
Author : Haruo Sato,Michael C. Fehler
Publisher : Springer Science & Business Media
Page : 308 pages
File Size : 45,8 Mb
Release : 2008-12-17
Category : Science
ISBN : 9783540896234
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.
Author : AKI,WU
Publisher : Birkhäuser
Page : 443 pages
File Size : 42,6 Mb
Release : 2013-12-18
Category : Science
ISBN : 9783034877220
Reprint from Pure and Applied Geophysics (PAGEOPH), Volume 128 (1988), No. 1/2
Author : Haruo Sato,Michael C. Fehler,Takuto Maeda
Publisher : Springer Science & Business Media
Page : 505 pages
File Size : 44,6 Mb
Release : 2012-03-08
Category : Science
ISBN : 9783642230288
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.
Author : Keiiti Aki,Rushan Wu
Publisher : Unknown
Page : 447 pages
File Size : 49,5 Mb
Release : 1988
Category : Elastic waves
ISBN : OCLC:180474053
Author : D.E. James
Publisher : Springer Science & Business Media
Page : 1299 pages
File Size : 48,6 Mb
Release : 1989-11-30
Category : Science
ISBN : 9780442243661
Consisting of more than 150 articles written by leading experts, this authoritative reference encompasses the entire field of solid-earth geophysics. It describes in detail the state of current knowledge, including advanced instrumentation and techniques, and focuses on important areas of exploration geophysics. It also offers clear and complete coverage of seismology, geodesy, gravimetry, magnetotellurics and related areas in the adjacent disciplines of physics, geology, oceanography and space science.
Author : M. N Toksöz,David H. Johnston
Publisher : Unknown
Page : 459 pages
File Size : 48,5 Mb
Release : 1981
Category : Electronic
ISBN : 0931830001
Author : M. N. Toksöz,David H. Johnston
Publisher : Unknown
Page : 480 pages
File Size : 51,6 Mb
Release : 1981
Category : Science
ISBN : STANFORD:36105016829470
"We have undertaken the editing of this volume to help the broad-range research effort gain a better understanding of attenuation and its applications to seismic exploration problems... We have emphasized the material most relevant to exploration geophysics. As a result, most of the papers compiled here deal with sedimentary rocks, the effects of fluids, and the pressure ranges encountered in shalow crustal layers."--Preface.
Author : Keiiti Aki,Ru-Shan Wu
Publisher : Birkhauser
Page : 462 pages
File Size : 52,5 Mb
Release : 1988
Category : Nature
ISBN : UOM:39015018338254
Author : Haruo Sato,Michael Fehler
Publisher : Academic Press
Page : 497 pages
File Size : 42,8 Mb
Release : 2009-02-26
Category : Science
ISBN : 9780080880334
Seismic waves generated by earthquakes have been interpreted to provide us information about the Earth’s structure across a variety of scales. For short periods of less than 1 second, the envelope of seismograms changes significantly with increased travel distance and coda waves are excited by scattering due to randomly distributed heterogeneities in the Earth. Deterministic structures such as horizontally uniform velocity layer models in traditional seismology cannot explain these phenomena. This book focuses on the Earth heterogeneity and scattering effects on seismic waves. Topics covered are recent developments in wave theory and observation including: coda wave analysis for mapping medium heterogeneity and monitoring temporal variation of physical properties, radiation of short-period seismic waves from an earthquake fault, weak localization of seismic waves, attenuation of seismic waves in randomly porous media, synthesis of seismic wave envelopes in short periods, and laboratory investigations of ultrasonic wave propagation in rock samples. Understanding new methods for the analysis of short-period seismic waves to characterize the random heterogeneity of the Earth on many scales Observations of seismic wave scattering Discussion of techniques for mapping medium heterogeneity and for monitoring temporal change in medium characteristics Up-to-date techniques for the synthesis of wave envelopes in random media
Author : Brian Kennett
Publisher : ANU E Press
Page : 298 pages
File Size : 52,7 Mb
Release : 2009-05-01
Category : Reference
ISBN : 9781921536731
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.
Author : Nick Barton
Publisher : CRC Press
Page : 729 pages
File Size : 41,6 Mb
Release : 2006-11-03
Category : Technology & Engineering
ISBN : 9781134160136
Seismic measurements take many forms, and appear to have a universal role in the Earth Sciences. They are the means for most easily and economically interpreting what lies beneath the visible surface. There are huge economic rewards and losses to be made when interpreting the shallow crust or subsurface more, or less accurately, as the case may be.
Author : Haruo Sato,Michael C. Fehler,Takuto Maeda
Publisher : Springer
Page : 0 pages
File Size : 54,5 Mb
Release : 2014-04-13
Category : Science
ISBN : 3642443184
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.
Author : David E. Willis,Philip L. Jackson
Publisher : Unknown
Page : 60 pages
File Size : 47,5 Mb
Release : 1966
Category : Seismic waves
ISBN : OSU:32435011464666
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).