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Relevant bibliographies by topics / Infrasound propagation modelling

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Academic literature on the topic 'Infrasound propagation modelling'

Author: Grafiati

Published: 11 November 2023

Last updated: 31 July 2025

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Journal articles on the topic "Infrasound propagation modelling"

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LISTOWSKI, Constantino, Claudia Christine STEPHAN, Samuel KRISTOFFERSEN, et al. "Internal gravity waves in the middle atmosphere and their impact on infrasound propagation across the International Monitoring System." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 6 (2024): 5613–21. http://dx.doi.org/10.3397/in_2024_3622.

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Infrasound technology is used to monitor atmospheric events in order to guarantee compliance with the Comprehensive Nuclear-Test-Ban Treaty (CTBT). Over the 60 infrasound stations initially planned, 53 are operational to date as part of the International Monitoring System (IMS). As opposed to the waveform-related technologies that are used by the IMS to monitor the two other media of the geosphere (the underground and the oceans), infrasound waves are travelling in a continuously varying propagation medium. From minutes to hours and from a few hundreds of meters in the vertical to thousands of

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Tailpied, Dorianne, Alexis Le Pichon, and Benoit Taisne. "Assessing uncertainties in infrasound network performance modelling: application to the Euro-Mediterranean and Southeast Asian region." Geophysical Journal International 228, no. 2 (2021): 1324–45. http://dx.doi.org/10.1093/gji/ggab399.

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SUMMARY We propose a modelling technique to confidently estimate and optimize the performance of any infrasound network to remotely monitor sources of interest such as volcanic eruptions, while considering realistic atmospheric specifications along the propagation path, source frequency and noise levels at the station. To provide a more realistic picture of the network performance, we define a confidence level accounting for propagation and atmospheric uncertainties. Therefore, we consider ‘numerical’ uncertainties linked to the approximations made in the used propagation model, errors of the

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Evers, L. G., J. D. Assink, and P. SM Smets. "Infrasound from the 2009 and 2017 DPRK rocket launches." Geophysical Journal International 213, no. 3 (2018): 1785–91. http://dx.doi.org/10.1093/gji/ggy092.

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SummarySupersonic rockets generate low-frequency acoustic waves, that is, infrasound, during the launch and re-entry. Infrasound is routinely observed at infrasound arrays from the International Monitoring System, in place for the verification of the Comprehensive Nuclear-Test-Ban Treaty. Association and source identification are key elements of the verification system. The moving nature of a rocket is a defining criterion in order to distinguish it from an isolated explosion. Here, it is shown how infrasound recordings can be associated, which leads to identification of the rocket. Propagatio

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Che, Il-Young, Keehoon Kim, Alexis Le Pichon, Junghyun Park, Stephen Arrowsmith, and Brian Stump. "Illuminating the North Korean nuclear explosion test in 2017 using remote infrasound observations." Geophysical Journal International 228, no. 1 (2021): 308–15. http://dx.doi.org/10.1093/gji/ggab338.

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SUMMARY North Korea conducted its sixth underground nuclear explosion test (${m_\mathrm{ b}}$ 6.3) on 2017 September 3. The underground explosion produced substantial low-frequency atmospheric waves, which were detected by infrasound arrays located up to a distance of 566 km. These infrasound waves are formed by the conversion of seismic energy to acoustic energy across the lithosphere–atmosphere interface. While infrasound records at regional distances produce estimates of ground motion amplitude over spatially extended regions covering about 26 500 km2, 3-D full seismo-acoustic simulations w

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Green, David N., and Alexandra Nippress. "Investigating infrasonic signal amplitudes at the lateral edges of propagation ducts." Journal of the Acoustical Society of America 152, no. 4 (2022): A164. http://dx.doi.org/10.1121/10.0015895.

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Azimuthal variation in expected infrasonic signal strength is often modelled using Nx2D finite-frequency acoustic propagation models. Such simulations frequently exhibit rapid changes in transmission loss (>30 dB across 5°) at the lateral edges of stratospheric propagation ducts, due to the sensitivity of acoustic ducting to the along-path windspeed. The inclusion of microbarometers in the USArray Transportable Array, with an inter-station separation of ∼70 km, has provided improved resolution across the lateral extent of tropospheric and stratospheric ducts within which infrasound is propa

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Joshi, Lalit Mohan, Samireddipelle Sripathi, Muppidi Ravi Kumar, and Esfhan Alam Kherani. "Simulating the dependence of seismo-ionospheric coupling on the magnetic field inclination." Annales Geophysicae 36, no. 1 (2018): 25–35. http://dx.doi.org/10.5194/angeo-36-25-2018.

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Abstract. Infrasound generated during a seismic event upon reaching the ionospheric heights possesses the ability to perturb the ionosphere. Detailed modelling investigation considering 1-D dissipative linear dynamics, however, indicates that the magnitude of ionospheric perturbation strongly depends on the magnetic field inclination. Physics-based SAMI2 model codes have been utilized to simulate the ionosphere perturbations that are generated due to the action of the vertical wind perturbations associated with the seismic infrasound. The propagation of the seismic energy and the vertical wind

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De Carlo, M., A. Le Pichon, F. Ardhuin, and S. P. Näsholm. "CHARACTERIZING AND MODELLING OCEAN AMBIENT NOISE USING INFRASOUND NETWORK AND MIDDLE ATMOSPHERIC MODELS." NNC RK Bulletin, no. 2 (June 30, 2018): 144–51. http://dx.doi.org/10.52676/1729-7885-2018-2-144-151.

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Infrasound is one of the technologies of the International Monitoring System (IMS) supporting the verification regime of the Comprehensive Nuclear-Test-Ban Treaty (CTBT). In the frequency band of interest to detect atmospheric explosions, ambient noise may affect detection and particularly ocean noise referred to as microbaroms. Ocean wave interactions generate acoustic noise almost continuously which can obscure signals of interest in their frequency range. The detectability of such noise strongly depends on atmospheric conditions along the propagation paths. Using ocean wave action model dev

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8

Stępień, Bartłomiej, Tadeusz Wszołek, Dominik Mleczko, et al. "Suitability Analysis of Selected Methods for Modelling Infrasound and Low-Frequency Noise from Wind Turbines." Energies 17, no. 12 (2024): 2832. http://dx.doi.org/10.3390/en17122832.

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Wind turbines emit infrasound and low-frequency noise (ILFN), which can be annoying for people living near wind farms. To assess the acoustic impact of wind turbines on the environment, it is essential to model ILFN propagation during the forecasting stage. This study assesses the effectiveness of three commonly used sound propagation models (ISO 9613-2, CNOSSOS-EU for favourable propagation conditions, Nord2000) in predicting ILFN generated by wind turbines. The performance of these models in modelling ILFN is generally not validated or guaranteed. The analysis covers octave frequency bands r

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Millet, Christophe, Francois Lott, and Alvaro de la Camara. "How does knowledge of acoustics guide the parameterizations of gravity waves?" Journal of the Acoustical Society of America 151, no. 4 (2022): A160. http://dx.doi.org/10.1121/10.0010974.

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Describing the statistics of gravity wave (GW) fields represents a major motivation for both current research on atmospheric GWs and long-range infrasound propagation. In practice, the probability density functions (PDF) of the momentum fluxes are estimated combining observations, numerical modelling, and theory. Numerical models (such as WRF) show that the PDFs vary in a robust way relative to the background local wind speed. For non-orographic GWs, these PDFs are approximated as lognormal distributions, with characteristics found to depend on the background wind speed. Studies show that some

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Hedlin, Michael A. H., and Kristoffer T. Walker. "A study of infrasonic anisotropy and multipathing in the atmosphere using seismic networks." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 371, no. 1984 (2013): 20110542. http://dx.doi.org/10.1098/rsta.2011.0542.

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We discuss the use of reverse time migration (RTM) with dense seismic networks for the detection and location of sources of atmospheric infrasound. Seismometers measure the response of the Earth's surface to infrasound through acoustic-to-seismic coupling. RTM has recently been applied to data from the USArray network to create a catalogue of infrasonic sources in the western US. Specifically, several hundred sources were detected in 2007–2008, many of which were not observed by regional infrasonic arrays. The influence of the east–west stratospheric zonal winds is clearly seen in the seismic

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Dissertations / Theses on the topic "Infrasound propagation modelling"

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Vanderbecken, Pierre J. Y. "Apport des infrasons pour l'assimilation de données dans un modèle global de prévision numérique du temps." Electronic Thesis or Diss., Toulouse 3, 2020. http://www.theses.fr/2020TOU30328.

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Les ondes infrasonores, aussi appelées infrasons, sont des ondes acoustiques comprises entre 0 et 20 Hz émises par une large variété de sources. Leurs basses fréquences font que les gradients verticaux de vent et de température conduisent à la formation de guides d'ondes au sein desquels ces ondes peuvent se propager sur des milliers de kilomètres en étant très peu atténuées. Comme ce type de propagation est intrinsèquement lié à la circulation atmosphérique, ces ondes peuvent être utilisées comme traceurs. La circulation générale dans la stratosphère et la mésosphère, que l'on regroupe sous l

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