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Author : Earl E. Gossard
Publisher : Elsevier Science & Technology
ISBN 13 :
Total Pages : 484 pages
Book Rating : 4.3/5 (91 download)
Download or read book Waves in the Atmosphere written by Earl E. Gossard and published by Elsevier Science & Technology. This book was released on 1975 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Allan D. Pierce
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (17 download)
Download or read book Generation and propagation of infrasonic waves written by Allan D. Pierce and published by . This book was released on 1973 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review is given of theoretical studies on infrasound generation and propagation through the atmosphere which were carried out under the contract. These studies include (1) further development and application of a computer program for the prediction of pressure signatures at large distances from nuclear explosions, (2) development of an alternative approximate model for waveform synthesis based on Lamb's edge mode, (3) development of a geometrical acoustics' theory incorporating nonlinear effects, dispersion, and wave distortion at caustics, and (4) a theoretical model for the prediction of acoustic gravity wave generation by rising and oscillating fireballs. Numerical studies are reviewed which indicate the dependence of far field waveforms on energy yield and burst height. Implications of the Lamb edge mode theory include a new method for estimating energy yield from waveforms and an explanation of amplitude anomalies in terms of focusing or defocusing of horizontal ray paths.
Author : Igor Chunchuzov
Publisher : Cambridge Scholars Publishing
ISBN 13 : 1527547760
Total Pages : 355 pages
Book Rating : 4.5/5 (275 download)
Download or read book Infrasound Propagation in an Anisotropic Fluctuating Atmosphere written by Igor Chunchuzov and published by Cambridge Scholars Publishing. This book was released on 2020-02-28 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the theory and results of experimental studies of the propagation of infrasound waves in a real atmosphere with its inherent fine-scale layered structure of wind speed and temperature. It is motivated by the fact that the statistical characteristics of anisotropic (or layered) fluctuations of meteorological fields, the horizontal scales of which significantly exceed their vertical scales, have been very poorly studied compared to those of locally isotropic turbulence in the inertial range of scales. This book addresses this lacuna by developing a theory of the formation of anisotropic inhomogeneities of the atmosphere in a random field of internal gravity waves and vortex structures. Using theory, it explains numerous experimental data depicting the influence of the fine structure of the atmosphere on the propagation of infrasound waves from pulsed sources. The text will appeal to specialists in the fields of acoustics and optics of the atmosphere, remote sensing of the atmosphere, the dynamics of internal waves, nonlinear acoustics, and infrasound monitoring of explosions and natural hazards.
Author : Walter E. Knabe
Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.:/5 (318 download)
Download or read book Theoretical Study of the Generation of Infrasonic Waves in the Atmosphere written by Walter E. Knabe and published by . This book was released on 1968 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The generation of acoustic and internal gravity waves in the earth's atmosphere by nuclear detonations is considered. Attention is given to a general statement of the problem and to the assessment of the importance of various generation mechanisms in the flows produced by nuclear explosions. From the significant source mechanisms, the corresponding wave emissions are estimated with reference to nuclear detonation outputs. (Author).
Author : J. McKisic
Publisher :
ISBN 13 :
Total Pages : 155 pages
Book Rating : 4.:/5 (455 download)
Download or read book Infrasound and the Infrasonic Monitoring Or Atmospheric Nuclear Explosions: An Annotated Bibliography written by J. McKisic and published by . This book was released on 1996 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents an annotated and unclassified bibliography of selected references from refereed and other literature sources which are deemed relevant to those governmental, industry and academic institutions interested in the technical aspects of infrasound, in general, and in the particular use of infrasound to monitor compliance within the context of a comprehensive nuclear test ban treaty (CTBT). The review covers papers published during the time period extending from 1874 to 1996 and is based on literature searches conducted at the NTIS (National Technical Information Service), DTIC (Defense Technical Information Center), DSWA (Defense Special Weapons Agency), AFTAC (Air Force Tactical Applications Center) and from various refereed open literature journals. The report also reproduces the 'Bibliography of Infrasonic Waves, ' which was published in the 1971 Volume 26 special issue on infrasonics and atmospheric acoustics published by The Geophysical Journal of the Royal Astronomical Society and a list of references provided in Gossard and Hooke's 1975 book: WAVES IN THE ATMOSPHERE: Atmospheric Infrasound and Gravity Waves - their Generation and Propagation.
Author : Kaichi Maeda
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (31 download)
Download or read book Infrasonic Waves from the Auroral Zone written by Kaichi Maeda and published by . This book was released on 1964 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alexis Le Pichon
Publisher : Springer Science & Business Media
ISBN 13 : 1402095082
Total Pages : 739 pages
Book Rating : 4.4/5 (2 download)
Download or read book Infrasound Monitoring for Atmospheric Studies written by Alexis Le Pichon and published by Springer Science & Business Media. This book was released on 2010-01-19 with total page 739 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of infrasound to monitor the atmosphere has, like infrasound itself, gone largely unheard of through the years. But it has many applications, and it is about time that a book is being devoted to this fascinating subject. Our own involvement with infrasound occurred as graduate students of Prof. William Donn, who had established an infrasound array at the Lamont-Doherty Geological Observatory (now the Lamont-Doherty Earth Observatory) of Columbia University. It was a natural outgrowth of another major activity at Lamont, using seismic waves to explore the Earth’s interior. Both the atmosphere and the solid Earth feature velocity (seismic or acoustic) gradients in the vertical which act to refract the respective waves. The refraction in turn allows one to calculate the respective background structure in these mediums, indirectly exploring locations that are hard to observe otherwise. Monitoring these signals also allows one to discover various phenomena, both natural and man-made (some of which have military applications).
Author :
Publisher :
ISBN 13 :
Total Pages : 1346 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1985 with total page 1346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Allan Dale Pierce
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (482 download)
Download or read book Infrasonic Wave Propagation in the Atmosphere written by Allan Dale Pierce and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David Havelock
Publisher : Springer Science & Business Media
ISBN 13 : 038730441X
Total Pages : 1932 pages
Book Rating : 4.3/5 (873 download)
Download or read book Handbook of Signal Processing in Acoustics written by David Havelock and published by Springer Science & Business Media. This book was released on 2008-10-26 with total page 1932 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Signal Processing in Acoustics brings together a wide range of perspectives from over 100 authors to reveal the interdisciplinary nature of the subject. It brings the key issues from both acoustics and signal processing into perspective and is a unique resource for experts and practitioners alike to find new ideas and techniques within the diversity of signal processing in acoustics.
Author :
Publisher : Springer Science & Business Media
ISBN 13 : 0387776982
Total Pages : 1932 pages
Book Rating : 4.3/5 (877 download)
Download or read book Handbook of Signal Processing in Acoustics written by and published by Springer Science & Business Media. This book was released on 2008 with total page 1932 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alexis Le Pichon
Publisher : Springer
ISBN 13 : 3319751409
Total Pages : 1168 pages
Book Rating : 4.3/5 (197 download)
Download or read book Infrasound Monitoring for Atmospheric Studies written by Alexis Le Pichon and published by Springer. This book was released on 2018-10-26 with total page 1168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the publication of the first volume “Infrasound monitoring for atmospheric studies” published in 2010, significant advances were achieved in the fields of engineering, propagation modelling, and atmospheric remote sensing methods. The global infrasound network, which consists of the International Monitoring Network (IMS) for nuclear test ban verification completed by an increasing number of regional cluster arrays deployed around the globe, has evidenced an unprecedented potential for detecting, locating and characterizing various natural and man-made sources. In recent years, infrasound has evolved into a broad interdisciplinary field encompassing academic disciplines of geophysics and innovative technical and scientific developments. The advances in innovative ground-based instruments, including infrasound inversions for continuous observations of the stratosphere and mesosphere, provide useful insights into the geophysical source phenomenology and atmospheric processes involved. Systematic investigations into low-frequency infrasound signals and the development of complementary observational platforms point out new insights into the dynamics of the middle atmosphere which play a significant role in both tropospheric weather and climate. This monitoring system also provides continuous relevant information about natural hazards with high societal benefits, like on-going volcanic eruptions, surface earthquakes, meteorites or severe weather. With this new edition, researchers and students benefit from a comprehensive content of both fundamental and applied inter-disciplinary topics.
Author :
Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (61 download)
Download or read book Finite Difference Time Domain Modeling of Infrasound Propagation: Application to Shadow Zone Arrivals and Regional Propagation written by and published by . This book was released on 2008 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The finite difference (FD) method yields solutions to discretized versions of the full acoustic wave equation for arbitrarily complex media. The method is reliable at all angles of propagation, including backscatter. This offers an advantage over other standard propagation methods in wide use, as it allows for accurate computation of acoustic energy levels in the case where significant scattering can occur near the source, such as may happen for an explosion near the surface, or underground. It also allows for the investigation of the penetration of infrasound energy into classical shadow zones, where ray theory predicts the upward refraction of sound. This fits in with nuclear monitoring goals, in that it allows for an improved understanding of the generation and propagation of infrasound energy from arbitrary sources, including underground and near-surface explosions. The effects of (1) wind, (2) attenuation, and (3) gravity on infrasound propagation are examined separately, using finite-difference time-domain methods. The method is applied in 2-D Cartesian coordinates. The method, including the effects of wind, is applied to realistic problems in infrasound propagation, including the penetration of infrasound energy into "shadow" zones, as defined by ray theory. The effects of diffraction and topography are examined for sources near the surface. It is shown that the FD approach can be used to solve for sound intensities in complex models that may include high material contrasts and arbitrary topography.
Author : Josep M. Trigo-Rodríguez
Publisher : Springer
ISBN 13 : 3319461796
Total Pages : 256 pages
Book Rating : 4.3/5 (194 download)
Download or read book Assessment and Mitigation of Asteroid Impact Hazards written by Josep M. Trigo-Rodríguez and published by Springer. This book was released on 2016-12-19 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a compilation of the research presented at the International Asteroid Day workshop which was celebrated at Barcelona on June 30th, 2015. The proceedings discuss the beginning of a new era in the study and exploration of the solar system’s minor bodies. International Asteroid Day commemorates the Tunguska event of June 30th, 1908. The workshop’s goal was to promote the importance of dealing proactively with impact hazards from space. Multidisciplinary experts contributed to this discussion by describing the nature of comets and asteroids along with their offspring, meteoroids. New missions to return material samples of asteroids back to Earth such as Osiris-REx and Hayabusa 2, as well as projects like AIM and DART which will test impact deflection techniques for Potentially Hazardous Asteroids encounters were also covered. The proceedings include both an outreach level to popularize impact hazards and a scientific character which covers the latest knowledge on these topics, as well as offering proposals of promising new techniques that will help gain new insights of the properties of these challenging bodies by studying meteoroids and meteorites. Asteroids, comets, meteoroids and meteorites are introduced with descriptions of their nature, origin, and solar system pathways.
Author : Allan D. Pierce
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (227 download)
Download or read book Theoretical Study of the Propagation of Infrasonic Waves in the Atmosphere. Extension of the Method of Normal Modes to Wave Propagation in an Almost-stratified Medium written by Allan D. Pierce and published by . This book was released on 1964 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theory is presented which permits the extension of the method of normal modes to guided wave propagation in a medium with properties varying slowly with horizontal coordinates in addition to varying with the vertical coordinate. The principal assumption of the neglect of coupling between normal modes is justified as long as the horizontal wave numbers of different modes are not too closely spaced. It is predicted that different frequencies in different modes follow different horizontal paths. A ray tracing method is described for computing these paths. The theory is then applied to the study of the dispersion of waves from an explosive source in shallow water with slowly varying depth. (Author).
Author : Lewis Wellington Cochran
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (343 download)
Download or read book The Generation and Propagation of Ultra-high-frequency Waves ... written by Lewis Wellington Cochran and published by . This book was released on 1938 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thomas Rossing
Publisher : Springer Science & Business Media
ISBN 13 : 0387304460
Total Pages : 1179 pages
Book Rating : 4.3/5 (873 download)
Download or read book Springer Handbook of Acoustics written by Thomas Rossing and published by Springer Science & Business Media. This book was released on 2007-06-21 with total page 1179 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is an unparalleled modern handbook reflecting the richly interdisciplinary nature of acoustics edited by an acknowledged master in the field. The handbook reviews the most important areas of the subject, with emphasis on current research. The authors of the various chapters are all experts in their fields. Each chapter is richly illustrated with figures and tables. The latest research and applications are incorporated throughout, including computer recognition and synthesis of speech, physiological acoustics, diagnostic imaging and therapeutic applications and acoustical oceanography. An accompanying CD-ROM contains audio and video files.
