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A Study Of Seismic Wave Propagation At Regional Distances In Five Areas Of The World
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Book Synopsis A Study of Seismic Wave Propagation at Regional Distances in Five Areas of the World by : Z. A. Der
Download or read book A Study of Seismic Wave Propagation at Regional Distances in Five Areas of the World written by Z. A. Der and published by . This book was released on 1982 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Propagation and excitation of regional phases in southern Africa, the southwestern United States, the Pakistan-India region, South America, and the Kamchatka-Kuriles region were studied. Comparison of the shield areas of South America, Pakistan and southern Africa reveals no appreciable differences in the excitation and attenuation of regional phases in these areas. On the other hand, excitation and attenuation rates for all regional phases are markedly different in the southwestern United States. The mountainous areas of South America are characterized by highly variable propagation characteristics, with Sn and Lg being absent from many seismograms studied. Attenuation of Sn and Lg is especially severe along the southern Andes mountains in Chile and Argentina. For these areas, the value of regional phases for detection and discrimination is highly questionable. The Andes region is also characterized by highly unusual seismograms with scattered, emergent phases resembling lunar seismograms. These problems are present, though to a much lesser degree, in the mountainous areas surrounding India and Pakistan. These areas are also characterized by highly variable propagation efficiency and by spatial attenuation that is higher than that of the shield.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Seismic Wavefield: Volume 1, Introduction and Theoretical Development by : B. L. N. Kennett
Download or read book The Seismic Wavefield: Volume 1, Introduction and Theoretical Development written by B. L. N. Kennett and published by Cambridge University Press. This book was released on 2001-11-12 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a guide to understanding of seismograms for graduate students, researchers, professionals in academia and the petroleum industry.
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.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1982 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Abstracts written by and published by . This book was released on 1984 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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).
Book Synopsis Living on an Active Earth by : National Research Council
Download or read book Living on an Active Earth written by National Research Council and published by National Academies Press. This book was released on 2003-09-22 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: The destructive force of earthquakes has stimulated human inquiry since ancient times, yet the scientific study of earthquakes is a surprisingly recent endeavor. Instrumental recordings of earthquakes were not made until the second half of the 19th century, and the primary mechanism for generating seismic waves was not identified until the beginning of the 20th century. From this recent start, a range of laboratory, field, and theoretical investigations have developed into a vigorous new discipline: the science of earthquakes. As a basic science, it provides a comprehensive understanding of earthquake behavior and related phenomena in the Earth and other terrestrial planets. As an applied science, it provides a knowledge base of great practical value for a global society whose infrastructure is built on the Earth's active crust. This book describes the growth and origins of earthquake science and identifies research and data collection efforts that will strengthen the scientific and social contributions of this exciting new discipline.
Book Synopsis Seismology and Structure of the Earth by : Barbara Romanowicz
Download or read book Seismology and Structure of the Earth written by Barbara Romanowicz and published by Elsevier. This book was released on 2010-04-20 with total page 873 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treatise on Geophysics: Seismology and Structure of the Earth, Volume 1, provides a comprehensive review of the state of knowledge on the Earths structure and earthquakes. It addresses various aspects of structural seismology and its applications to other fields of Earth sciences. The book is organized into four parts. The first part principally covers theoretical developments and seismic data analysis techniques from the end of the nineteenth century until the present, with the main emphasis on the development of instrumentation and its deployment. The second part reviews the status of knowledge on the structure of the Earths shallow layers, starting with a global review of the Earth's crustal structure. The third part focuses on the Earth's deep structure, divided into its main units: the upper mantle, the transition zone and upper-mantle discontinuities, the D region at the base of the mantle, and the Earth's core. The fourth part comprises two chapters which discuss constraints on Earth structure from fields other than seismology: mineral physics and geodynamics. - Self-contained volume starts with an overview of the subject then explores each topic with in depth detail - Extensive reference lists and cross references with other volumes to facilitate further research - Full-color figures and tables support the text and aid in understanding - Content suited for both the expert and non-expert
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.
Book Synopsis Cracking IAS Prelims 2024 General Studies (India and World Geography) Quick Revision Notes With Practice MCQs by : MYUPSC
Download or read book Cracking IAS Prelims 2024 General Studies (India and World Geography) Quick Revision Notes With Practice MCQs written by MYUPSC and published by R P Meena. This book was released on with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cracking IAS Prelims 2024 General Studies (India and World Geography) Quick Revision Notes With Practice MCQs. The most important source of Geography for UPSC is NCERT Books. Aspirants should read geography from NCERT Books for UPSC to prepare for the IAS Exam. Taking notes is an efficient way to organise the study material for Quick Revision. UPSC candidates often find it difficult to find the right topics to focus on or may not have the time or resources at hand to take efficient notes. With this in mind, we at we have developed a compilation of NCERT Notes for UPSC. As per the UPSC 2024 calendar, the IAS Prelims and main exams are scheduled to take place on May 26, 2024 and September 20, 2024 onwards respectively. Geography is an important part of the Prelims GS 1 paper of the Civil Services Examination. Important questions for UPSC from the Geography section are given here.
Book Synopsis Earthquake Engineering Frontiers in the New Millennium by : Y.X. Hu
Download or read book Earthquake Engineering Frontiers in the New Millennium written by Y.X. Hu and published by Routledge. This book was released on 2017-11-22 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises papers presented at the China-US Millennium Symposium on Earthquake Engineering, held in Beijing, China, on November 8-11, 2000. This conference provides a forum for advancing the field of earthquake engineering through multi-lateral cooperation.
Book Synopsis Geophysical Journal of the Royal Astronomical Society by :
Download or read book Geophysical Journal of the Royal Astronomical Society written by and published by . This book was released on 1986 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 11 and 13 includes the Proceedings of the 2nd, 3rd, International Symposium on Geophysical Theory and Computers, Rehovoth, Israel, etc., 1965-66.
Download or read book Commerce Business Daily written by and published by . This book was released on 2000-12 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in African Earth Sciences by : Islam Fadel
Download or read book Advances in African Earth Sciences written by Islam Fadel and published by Frontiers Media SA. This book was released on 2022-11-11 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulletin of the Atomic Scientists by :
Download or read book Bulletin of the Atomic Scientists written by and published by . This book was released on 1985-03 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
