Details
Infrasound Monitoring for Atmospheric Studies
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CHF 330.50 |
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| Verlag: | Springer |
| Format: | |
| Veröffentl.: | 19.01.2010 |
| ISBN/EAN: | 9781402095085 |
| Sprache: | englisch |
| Anzahl Seiten: | 735 |
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Beschreibungen
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).
HISTORY, INSTRUMENTATION, NETWORK.- The Characteristics of Infrasound, its Propagation and Some Early History.- The IMS Infrasound Network: Design and Establishment of Infrasound Stations.- Monitoring the Earth’s Atmosphere with the Global IMS Infrasound Network.- Low-Noise Broadband Microbarometers.- A Review of Wind-Noise Reduction Methodologies.- SOURCES, OBSERVATIONS, AND PROPAGATION.- Worldwide Observations of Infrasonic Waves.- Infrasonic Observations of Open Ocean Swells in the Pacific: Deciphering the Song of the Sea.- Generation of Microbaroms by Deep-Ocean Hurricanes.- Acoustic-Gravity Waves from Earthquake Sources.- Seismic Waves from Atmospheric Sources and Atmospheric/Ionospheric Signatures of Seismic Waves.- Acoustic-Gravity Waves from Impulsive Sources in the Atmosphere.- Meteor Generated Infrasound: Theory and Observation.- High-latitude Observations of Infrasound from Alaska and Antarctica: Mountain Associated Waves and Geomagnetic/Auroral Infrasonic Signals.- Some Atmospheric Effects on Infrasound Signal Amplitudes.- Atmospheric Variability and Infrasound Monitoring.- PROPAGATION MODELING IN A REALISTIC ATMOSPHERE.- On the Prospects for Acoustic Sounding of the Fine Structure of the Middle Atmosphere.- Numerical Methods to Model Infrasonic Propagation Through Realistic Specifications of the Atmosphere.- Misty Picture: A Unique Experiment for the Interpretation of the Infrasound Propagation from Large Explosive Sources.- Ground Truth Events: Assessing the Capability of Infrasound Networks Using High Resolution Data Analyses.- ATMOSPHERIC INVESTIGATIONS FROM GLOBAL CONTINUOUS INFRASOUND MONITORING.- Contribution of Infrasound Monitoring for Atmospheric Remote Sensing.- Global Scale Monitoring of Acoustic and Gravity Waves for the Study of theAtmospheric Dynamics.- Dynamics and Transport in the Middle Atmosphere Using Remote Sensing Techniques from Ground and Space.- The Representation of Gravity Waves in Atmospheric General Circulation Models (GCMs).- Inversion of Infrasound Signals for Passive Atmospheric Remote Sensing.
<P>A. Le Pichon (Master Degree in Fundamental Physics. PhD in Acoustics) Since 1998, geophysicist at the French National Data Center (NDC), hosted by CEA/DASE, in charge of Infrasound research activities on topics relevant to Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO): signal processing for automated detection and source location procedures, propagation modeling, methods for source characterization.</P>
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<P>E. Blanc: Research director at CEA. Main research areas are infrasound and gravity waves, electrodynamical coupling of the atmospheric layers, atmospheric disturbances produced by lightning and sprites. She coordinated international research projects: study of infrasound from strong chemical explosions in USA and in Russia, HF radar observations of the disturbances of the equatorial ionosphere, space observations of lightning and sprite.</P>
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<P>A. Hauchecorne (Research director at CNRS; since 2005 Director of Aeronomy Service Laboratory):Main research areas are dynamics and climatology of the middle atmosphere; transport and mixing of ozone and minor constituents in the stratosphere; analysis of satellite data analysis and data assimilation in the field of stratospheric chemistry; lidar techniques for the measurement of stratospheric parameters.</P>
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<P>E. Blanc: Research director at CEA. Main research areas are infrasound and gravity waves, electrodynamical coupling of the atmospheric layers, atmospheric disturbances produced by lightning and sprites. She coordinated international research projects: study of infrasound from strong chemical explosions in USA and in Russia, HF radar observations of the disturbances of the equatorial ionosphere, space observations of lightning and sprite.</P>
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<P>A. Hauchecorne (Research director at CNRS; since 2005 Director of Aeronomy Service Laboratory):Main research areas are dynamics and climatology of the middle atmosphere; transport and mixing of ozone and minor constituents in the stratosphere; analysis of satellite data analysis and data assimilation in the field of stratospheric chemistry; lidar techniques for the measurement of stratospheric parameters.</P>
<P>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.</P>
<P>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. </P>
<P>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.</P>
<P>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.</P>
<P>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. </P>
<P>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.</P>
<P>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.</P>
New results from global operational infrasound network Interdisciplinary technical and scientific developments in geophysics Opening of new fields of investigation into fundamental and applied topics Contributions by experts from international institutions
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