Infrasound Monitoring For Atmospheric Studies
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Infrasound Monitoring For Atmospheric Studies
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Author : Alexis Le Pichon
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-01-19
Infrasound Monitoring For Atmospheric Studies written by Alexis Le Pichon and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-01-19 with Science categories.
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).
Infrasound Monitoring For Atmospheric Studies
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Author : Alexis Le Pichon
language : en
Publisher: Springer
Release Date : 2018-10-26
Infrasound Monitoring For Atmospheric Studies written by Alexis Le Pichon and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-26 with Science categories.
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.
Infrasound Monitoring For Atmospheric Studies
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Author : Alexis Le Pichon
language : en
Publisher:
Release Date : 2010-04-17
Infrasound Monitoring For Atmospheric Studies written by Alexis Le Pichon and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-04-17 with Atmospheric turbulence categories.
The infrasound field, the science of low-frequency acoustic waves, has developed into a broad interdisciplinary field encompassing academic disciplines of physics and recent technical and scientific developments. The infrasound network of the International Monitoring Network (IMS) of the CTBT-Organization has demonstrated its capability for detecting and locating infrasonic sources such as meteorites, volcanic eruptions, earthquakes, auroras, mountain associated waves ... Nearly 70% of the global network is now operational and regional cluster arrays are deployed around the globe. Systematic investigations into low-frequency acoustic signals have evidenced an unprecedented potential of the monitoring of infrasonic waves permanently generated by natural and man-made events. Furthermore, recent studies point out new insights on quantitative relationships between observables and atmospheric specifications, and therefore opening new fields into the mathematics of geophysical inverse problems for atmospheric remote sensing. This volume reviews the most important areas of infrasound, with emphasis on the latest researches and applications, e.g. instrumentation, engineering, signal processing, source monitoring, propagation modeling, atmospheric dynamics, global changes, remote sensing methods. Researchers and students will benefit from a comprehensive content of infrasound related topics, where both fundamental and applied topics are discussed by authors from international institutions, all experts in their fields.
Infrasound Propagation In An Anisotropic Fluctuating Atmosphere
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Author : Igor Chunchuzov
language : en
Publisher: Cambridge Scholars Publishing
Release Date : 2020-02-28
Infrasound Propagation In An Anisotropic Fluctuating Atmosphere written by Igor Chunchuzov and has been published by Cambridge Scholars Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-28 with Science categories.
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.
Mars A Volcanic World
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Author : Giovanni Leone
language : en
Publisher: Springer Nature
Release Date : 2021-10-26
Mars A Volcanic World written by Giovanni Leone and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-26 with Science categories.
This book is a comprehensive advancement about the understanding of the volcanology of Mars in all its aspects, from its primary formation to its evolution in time, from the smaller structures to the bigger structures. It discusses the implications of volcanism in the general environmental and geological context of Mars. The book is validating the Southern Giant Impact Hypothesis explaining the formation of Mars in an interdisciplinary approach, including mineralogical, geochemical, volcanological as well as geomorphological information. Implications for future explorations in terms of resources are provided. This book serves as a textbook for undergraduate and graduate level to foster new basic research in the field of planetary volcanology and is a new guide for future missions toward a volcanic world, including new detailed information for the general audience who is always keen to know more about the history of Mars and its large volcanoes. The book also presents an updated situation about the water resources of the planet.
Seismicity In Volcanic Areas
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Author : Derek Keir
language : en
Publisher: Frontiers Media SA
Release Date : 2022-11-04
Seismicity In Volcanic Areas written by Derek Keir and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-11-04 with Science categories.
Infrasound As Upper Atmospheric Monitor
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Author : Jelle D. Assink
language : en
Publisher: CreateSpace
Release Date : 2013-10-25
Infrasound As Upper Atmospheric Monitor written by Jelle D. Assink and has been published by CreateSpace this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-25 with Science categories.
Understanding and specification of the higher altitudes of the atmosphere with global coverage over all local times is hampered by the challenges of obtaining direct measurements in the upper atmosphere. Methods to measure the properties of the atmosphere above the stratopause is an active area of scientific research. In this thesis, we revisit the use of infrasound as a passive remote sensing technique for the upper atmosphere. Signals from the Tungurahua volcano in Ecuador are used to investigate the behavior of the upper atmosphere. Depending on the atmospheric conditions, stratospheric, mesospheric and thermospheric arrivals are observed during intervals of explosive volcanic activity. It is found that the travel times and dominant frequencies of the thermospheric arrivals exhibit a coherent variability with periods equal to those of the tidal harmonics. Theoretical predictions using atmospheric specifications show that the stratospheric arrivals are predicted within 1 percent of the observed value. For thermospheric arrivals, this error can be as high as 10 percent. The error in thermospheric celerities is found to be in accord with the typical uncertainty in upper atmospheric winds. Given the observed response of the infrasound celerities to upper atmospheric tidal variability, it is suggested that infrasound observations may be used as an additional source of information to constrain the atmospheric specifications in the upper atmosphere. We present corrected wind profiles that have been obtained by minimizing misfits in traveltime and source location using a Bayesian statistics grid search algorithm. Additionally, a new numerical method has been developed to solve the problem of infrasound propagation in a stratified medium with background flow, based on a modal expansion.
Waves In The Atmosphere
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Author : Earl E. Gossard
language : en
Publisher: Elsevier Science & Technology
Release Date : 1975
Waves In The Atmosphere written by Earl E. Gossard and has been published by Elsevier Science & Technology this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Science categories.
Manufacturing Engineering And Automation Ii
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Author : Liang Chi Zhang
language : en
Publisher: Trans Tech Publications Ltd
Release Date : 2012-11-29
Manufacturing Engineering And Automation Ii written by Liang Chi Zhang and has been published by Trans Tech Publications Ltd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-11-29 with Technology & Engineering categories.
Volume is indexed by Thomson Reuters CPCI-S (WoS). This work on the latest advances in, and applications of, manufacturing engineering and automation comprises 576 peer-reviewed papers selected (for quality and relevance) from the over 1000 papers originally submitted by universities and industrial concerns all over the world. The papers specifically cover the topics of modern design theory and technology, advanced manufacturing technologies, modeling, analysis and simulation of manufacturing processes, automation and control, materials science and technology and the dynamics of mechanisms and systems. Readers are thus provided with a broad overview of the latest advances in the field of manufacturing engineering and automation.
Monitoring The Comprehensive Nuclear Test Ban Treaty Data Processing And Infrasound
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Author : Zoltan A. Der
language : en
Publisher: Springer
Release Date : 2012-12-06
Monitoring The Comprehensive Nuclear Test Ban Treaty Data Processing And Infrasound written by Zoltan A. Der and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
On September 10, 1996, The United Nations General Assembly adopted the Copmprehensive Nuclear-Test-Ban Treaty (CTBT), prohibiting nuclear explosions worldwide, in all environments. The treaty calls for a global verification system, including a network of 321 monitoring stations distributed around the globe, a data communications network, an international data center (IDC), and on-site inspections, to verify compliance. This volume presents certain recent research results pertaining on methods used to process data recorded by instruments of the International Monitoring System (IMS) and addressing recording infrasound signals generated by atmospheric explosions. Six papers treating data processing provide an important selection of topics expected to contribute to improving our ability to successfully monitor a CTBT. Five papers concerning infrasound include descriptions of ways in which that important research area can contribute to CTBT monitoring, the automatic processing of infrasound data, and site conditions that serve to improve the quality of infrasound data.