Results 31 to 40 of about 18,047 (294)

Skyfall: Signal Fusion from a Smartphone Falling from the Stratosphere

Signals, 2022
A smartphone plummeted from a stratospheric height of 36 km, providing a near-real-time record of its rapid descent and ground impact. An app recorded and streamed useful internal multi-sensor data at high sample rates.
Milton A. Garcés, Daniel Bowman, Cleat Zeiler, Anthony Christe, Tyler Yoshiyama, Brian Williams, Meritxell Colet, Samuel Takazawa, Sarah Popenhagen   +8 more
doaj   +1 more source

Processing of volcano infrasound using film sound audio post-production techniques to improve signal detection via array processing

Geoscience Letters, 2020
The use of infrasound for the early detection of volcanic events has been shown to be effective over large distances, and unlike visual methods, is not weather dependent.
Ross Adrian Williams, Anna Perttu, Benoit Taisne   +2 more
doaj   +1 more source

Bolide Energetics and Infrasound Propagation: Exploring the 18 December 2018 Bering Sea Event to Identify Limitations of Empirical and Numerical Models

The Seismic Record, 2021
Infrasound observations are an important tool in assessing the energetics of bolides and can help quantify the flux of meteoroids through Earth’s atmosphere.
Stephen Arrowsmith, Petru Negraru, Greg Johnson   +2 more
doaj   +1 more source

Infrasonic Earthquake Detectability Investigated in Southern Part of Japan, 2019

Sensors, 2021
The Kochi University of Technology (KUT) Infrasound Sensor Network contains 30 infrasound sensors which are distributed all over Japan especially in Shikoku Island.
Islam Hamama, Masa-yuki Yamamoto
doaj   +1 more source

METHOD OF STUDYING INFRASOUND WAVES FROM THUNDERSTORMS

Solar-Terrestrial Physics, 2022
The paper provides an overview of studies of infrasound signals from thunderstorms over a period of more than 30 years. We deal with several types of infrasound signals from thunderstorms detected at the ISTP SB RAS infrasound station Badary in Buryatia.
A.G. Sorokin, V.A. Dobrynin
doaj   +1 more source

A basic identification of late auditory evoked potentials at infrasound frequencies: Support neural network–based signal processing

Journal of Low Frequency Noise, Vibration and Active Control, 2023
Concerns about potential health risks from infrasound exposure require objective investigation methods for the perception of infrasound by humans. Neural-network methods were applied to identify weak infrasound evoked potentials and to investigate the ...
Christian Koch
doaj   +1 more source

Volcano infrasound: progress and future directions

Bulletin of Volcanology, 2022
Over the past two decades (2000–2020), volcano infrasound (acoustic waves with frequencies less than 20 Hz propagating in the atmosphere) has evolved from an area of academic research to a useful monitoring tool. As a result, infrasound is routinely used
L. Watson, A. Iezzi, L. Toney, S. Maher, D. Fee, Kathleen F. McKee, H. Ortiz, R. Matoza, J. Gestrich, J. Bishop, Alex J. C. Witsil, Jacob F. Anderson, Jeffrey B. Johnson   +12 more
semanticscholar   +1 more source

The Deelen infrasound array for recording sonic booms and events of CTBT interest [PDF]

, 2000
The Seismology Division of the Royal Netherlands Meteorological Institute (KNMI) has build up expertise in infrasound measurements by investigating low frequency events in order to distinguish between seismic and sonic events.
Bree, H-E. de, Evers, L., Haak, H.W., Koers, A.A.   +3 more
core   +5 more sources

The Utility of Infrasound in Global Monitoring of Extraterrestrial Impacts: A Case Study of the 2008 July 23 Tajikistan Bolide [PDF]

Astronomical Journal
Among the various observational techniques used for the detection of large bolides on a global scale is a low-frequency sound known as infrasound. Infrasound, which is also one of the four sensing modalities used by the International Monitoring System ...
Elizabeth A. Silber
semanticscholar   +1 more source

Stratospheric Balloon Observations of Infrasound Waves From the 15 January 2022 Hunga Eruption, Tonga

Geophysical Research Letters, 2022
The 15 January 2022 eruption of the Hunga volcano (Tonga) generated a rich spectrum of waves, some of which achieved global propagation. Among numerous platforms monitoring the event, two stratospheric balloons flying over the tropical Pacific provided ...
A. Podglajen, A. Le Pichon, R. F. Garcia, S. Gerier, C. Millet, Kristopher Bedka, K. Khlopenkov, S. Khaykin, A. Hertzog   +8 more
semanticscholar   +1 more source