The Effect of Sonar on Human Hearing
@inproceedings{Mora2011TheEO, title={The Effect of Sonar on Human Hearing}, author={Renzo Mora and Sara Penco and Luca Guastini}, year={2011} }
Human use of the Earth’s oceans has steadily increased over the last century resulting in an increase in anthropogenically produced noise. This noise stems from a variety of sources including commercial shipping, oil drilling and exploration, scientific research and naval sonar. Sonar (for sound navigation and ranging) is a technique that uses sound propagation (usually underwater) to navigate, communicate or to localize: sonar may be used as a means of acoustic location (acoustic location in…
Tables from this paper
2 Citations
Audio-based Motion Detection
- Computer Science
- 2021
An optimisation and tracking algorithm was designed to obtain better results from the systems, and the results show that for Device 1, the algorithm can detect any movement of a person within the range of the system, however, for Device 2, the algorithms can differentiate between different movements, allowing the detection of a people who is approaching the device, rather than just someone who is just passing by.
Cognitive autonomous diving buddy (CADDY): AUV design requirements for divers safety
- EngineeringOCEANS 2015 - Genova
- 2015
The main objective of the CADDY project is to replace a human buddy diver with an autonomous underwater vehicle and add a new autonomous surface vehicle to improve monitoring, assistance, and safety…
References
SHOWING 1-10 OF 49 REFERENCES
Effect of ocean currents on the performance of a time-reversing array in shallow water.
- PhysicsThe Journal of the Acoustical Society of America
- 2003
This paper presents a theoretical and computational investigation into how ocean currents influence TRA retrofocusing in shallow ocean environments for various array orientations, based on a normal-mode propagation model valid for low Mach number currents.
The effect of active sonar for the protection of moored and anchored warships on the human hearing
- MedicineEuropean Archives of Oto-Rhino-Laryngology
- 2009
The results show the temporary negative effects of repeated and lasting exposure to active sonar (Hull MF) on the divers; the last control demonstrate the absence of permanent noise-induced hearing loss in divers exposed toActive middle frequency sonar.
The effects of high-intensity, low-frequency active sonar on rainbow trout.
- PhysicsThe Journal of the Acoustical Society of America
- 2007
The results varied with different groups of trout, suggesting developmental and/or genetic impacts on how sound exposure affects hearing, and gross- and histopathology observations demonstrated no effects on nonauditory tissues.
Sonar-induced temporary hearing loss in dolphins
- PhysicsBiology Letters
- 2009
In controlled experimental studies, it is shown that mid-frequency sonar can induce temporary hearing loss in a bottlenose dolphin (Tursiops truncatus), and data support an increasing energy model to predict temporary noise-induced hearing loss and indicate that odontocete noise exposure effects bear trends similar to terrestrial mammals.
Recreational scuba divers' aversion to low-frequency underwater sound.
- PhysicsUndersea & hyperbaric medicine : journal of the Undersea and Hyperbaric Medical Society, Inc
- 2001
It is suggested that LFS exposures up to 145 dB re 1 microPa at frequencies between 100 and 500 Hz will have minimal impact on the recreational diver, and diver aversion to LFS is dependent upon SPL and center frequency.
Exposure of fish to high-intensity sonar does not induce acute pathology.
- Biology, Environmental ScienceJournal of fish biology
- 2010
Exposure to low and midfrequency sonars, as described in this report, might not have acute effects on fish tissues, and this study represents the first investigation of the effects of high-intensity sonar on fish tissue in vivo.
Underwater Sound: Deep-Ocean Propagation
- Geology, PhysicsScience
- 1964
The absorption of sound in sea water varies markedly with frequency, being much greater at high than at low frequencies, and this variation has a strong influence on long-range propagation.
An evaluation of the accuracy of shallow water matched field inversion results.
- PhysicsThe Journal of the Acoustical Society of America
- 2001
The accuracy of geo-acoustic and geometric parameter estimates obtained through matched field inversion (MFI) was assessed and the contribution of oceanographic variability was evaluated through synthetic inversions that account for the actual sound speed variations as measured by the towed CTD-chain.
On the stability of long-range sound propagation through a structured ocean.
- PhysicsThe Journal of the Acoustical Society of America
- 2001
Several acoustic experiments show a surprising degree of stability in wave fronts propagating over multi-megameter ranges through the ocean's sound channel despite the presence of random-like, sound-speed fluctuations, which may be one of several possible mechanisms leading to greater than anticipated sound-field stability.
Intensity and space-time characteristics of the sound field in the underwater sound channel of the Black Sea
- Physics
- 2003
Experimental data are presented on the intensity and space-time characteristics of the sound field generated by explosions in underwater and surface sound channels of the Black Sea. The fine field…