Results 61 to 70 of about 18,047 (294)

Fusion of multiple microphone array data for localizing sound sources in an industrial area [PDF]

, 2016
This paper reviews recent progress toward understanding the dynamics of the middle atmosphere in the framework of the Atmospheric Dynamics Research InfraStructure in Europe (ARISE) initiative.
Basten, Tom, Botteldooren, Dick, De Coensel, Bert, Dekoninck, Luc, Makovec, Alphonso, Spruytte, Vincent, van der Eerden, Frits, Van Renterghem, Timothy, Wessels, Peter   +8 more
core   +7 more sources

Mechanical Filter-Based Differential Pressure Fiber-Optic Fabry-Perot Infrasound Sensor

IEEE Photonics Journal, 2021
A differential pressure fiber optic infrasound sensor based on a mechanical filter was developed, for the detection of infrasound within the frequency range of 0.01--1 Hz.
Peng Zhang, Shuang Wang, Junfeng Jiang, Chao Li, Tianhua Xu, Li Zhiyuan, Xun Yu, Yin Yu, Kun Liu, Tiegen Liu   +9 more
doaj   +1 more source

Infrasound early warning model for debris flow in a typical drainage basin in Beijing mountainous area

地质科技通报
Objective Infrasound is an effective approach for debris flow warning. Traditional threshold-based warning methods focus solely on individual infrasound characteristics, which can lead to false alarms or missed detections.
Jiashuo YU, Shuhua ZHAI, Shangzhi XU, Jian MAO, Menglun LI, Qiangqiang WANG, Huanhuan LIU, Yuntao WANG, Miao YU   +8 more
doaj   +1 more source

Effects of infrasound on the perception of a low-frequency sound

Acta Acustica, 2023
The study investigated the effects of an 8 Hz infrasound sinusoid, presented at a sensation level (SL) of 9 decibels (dB), on the detection of i) a 64 Hz pure tone and ii) an 8 Hz sinusoidal amplitude modulation imposed on a 64 Hz sinusoidal carrier ...
Friedrich Björn, Joost Holger, Fedtke Thomas, Verhey Jesko L.   +3 more
doaj   +1 more source

Debris Flow Infrasound Recognition Method Based on Improved LeNet-5 Network

Sustainability, 2022
To distinguish debris flow infrasound from other infrasound sources, previous works have used one-dimensional infrasound shapes and parameters. In this study, we converted infrasound signals into two-dimensional signal time–frequency graphs and created a
X. Leng, Liangyu Feng, Ou Ou, Xuelei Du, Dunlong Liu, Xinxin Tang   +5 more
semanticscholar   +1 more source

Annoyance of Audible Infrasound [PDF]

Journal of Low Frequency Noise, Vibration and Active Control, 1987
Contours of equal annoyance were determined for pure tones in the frequency range 4 – 31.5 Hz. The curves show a narrowing of the dynamic range of the ear at low frequencies. The same pattern is seen for equal loudness curves, and the results support the theory that the annoyance of infrasound is closely related to the loudness sensation.
openaire   +1 more source

Estimating stratospheric polar vortex strength using ambient ocean‐generated infrasound and stochastics‐based machine learning

Quarterly Journal of the Royal Meteorological Society
There are sparse opportunities for direct measurement of upper stratospheric winds, yet improving their representation in subseasonal‐to‐seasonal prediction models can have significant benefits.
Ekaterina Vorobeva, M. Eggen, A. Midtfjord, F. Benth, P. Hupe, Q. Brissaud, Y. Orsolini, S. P. Näsholm   +7 more
semanticscholar   +1 more source

Infrasound generation by tornadic supercell storms

, 2008
Acoustic wave generation by turbulence in the stratified, moist atmosphere is studied. It is shown that in the saturated moist air turbulence in addition to the Lighthill's quadrupole and the dipole sources of sound related to stratification and ...
Batchelor, Beasley, Bedard, Bedard, Bluestein, Bolton, Bowman, Colgate, Crighton, Freund, Georges, Georges, Georges, Goldstein, Goldstein, Goldstein, Gossard, Howe, Howe, Lighthill, Naugolnykh, Nicholls, Nicholls, Nicholls, Noble, Ostashev, Panickar, Pielke, Proudman, Schecter, Stein, Séror, Whitmire   +32 more
core   +1 more source

The use of infrasound in volcano monitoring : contribution for future application in the Azores Islands [PDF]

, 2019
Dissertação de Mestrado, Vulcanologia e Riscos Geológicos, 22 de fevereiro de 2019, Universidade dos Açores.Infrassons resultam de perturbações na pressão atmosférica associadas quer a fontes naturais quer antropogénicas.
Matos, Sandro Branquinho
core  

Eruption Source Parameters in Volcanic Plume Modeling: Advances, Challenges, and Future Directions

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Accurately predicting the atmospheric dispersion of volcanic ash and gases is crucial for both scientific understanding and hazard mitigation. Estimating Eruption Source Parameters (ESP), such as mass eruption rate, plume height, duration, and particle size distribution and properties, remains challenging due to the complex nature of volcanic ...
A. Costa, A. Folch, Y. J. Suzuki, L. Mingari, G. Macedonio   +4 more
wiley   +1 more source