AIR GUN ARRAYS AS NOISE SOURCES: OUTPUT, IMPACT ZONES, AND FREQUENCY CONTENT
نویسندگان
چکیده
منابع مشابه
Air Gun Arrays as Noise Sources: Output, Impact Zones, and Frequency Content
The widespread use of powerful, low-frequency air gun pulses for seismic seabed exploration has raised concern about their potential negative effects on marine wildlife. An array of air guns creates a downward-directed, low-frequency pulse with most energy concentrated around 50 Hz and a back-calculated, broadband source level between 230 and 260 dB re 1 pPa (0 peak) with ocean-traversing poten...
متن کاملImpact of air gun noise on the behaviour of marine fish and squid.
In this study various species of captive marine fish and one species of squid were exposed to the noise from a single air gun. Six trials were conducted off the coast of Western Australia with each trial using a different noise exposure regime. Noise levels received by the animals ranged between 120 and 184 dB re 1 μPa(2).s (SEL). Behavioural observations of the fish and squid were made before,...
متن کاملSources and effects of low-frequency noise.
The sources of human exposure to low-frequency noise and its effects are reviewed. Low-frequency noise is common as background noise in urban environments, and as an emission from many artificial sources: road vehicles, aircraft, industrial machinery, artillery and mining explosions, and air movement machinery including wind turbines, compressors, and ventilation or air-conditioning units. The ...
متن کاملAttenuation of low frequency underwater noise using arrays of air-filled resonators
This paper investigates the acoustic behavior of underwater air-filled resonators that could potentially be used in an underwater noise abatement system. The resonators are similar to Helmholtz resonators without a neck, consisting of underwater inverted air-filled cavities with combinations of rigid and elastic wall members, and they are intended to be fastened to a framework forming a station...
متن کاملLow Frequency Noise from Transportation Sources
Low frequency noise (LFN) is common as background noise in urban environments and as an emission from many artificial sources: road vehicles, aircraft, industrial machinery, artillery and mining explosions, and air movement machinery including wind turbines, compressors, and indoor ventilation and air conditioning units (Tempest, 1976; Leventhall, 1988 from St Pierre and Maguire [1]). LFN may a...
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ژورنال
عنوان ژورنال: Bioacoustics
سال: 2008
ISSN: 0952-4622,2165-0586
DOI: 10.1080/09524622.2008.9753789