Deep‐water acoustical analysis of stationary and moving broadband sound sources

1978 ◽  
Vol 63 (5) ◽  
pp. 1353-1364 ◽  
Author(s):  
G. M. Jacyna ◽  
M. J. Jacobson
Keyword(s):  
Deep Water ◽  
Sound Sources ◽  
Acoustical Analysis ◽  
Broadband Sound

224Ra distribution in surface and deep water of Long Island Sound: sources and horizontal transport rates

1996 ◽  
Vol 16 (12) ◽  
pp. 1545-1559 ◽  
Author(s):  
Thomas Torgersen ◽  
K.K. Turekian ◽  
V.C. Turekian ◽  
N. Tanaka ◽  
Edward DeAngelo ◽  
...  
Keyword(s):  
Deep Water ◽  
Long Island ◽  
Long Island Sound ◽  
Sound Sources ◽  
Horizontal Transport ◽  
Island Sound

scholarly journals Characterizing the Long-Term, Wide-Band and Deep-Water Soundscape Off Hawai’i

2021 ◽  
Vol 8 ◽  
Author(s):  
Karlina Merkens ◽  
Simone Baumann-Pickering ◽  
Morgan A. Ziegenhorn ◽  
Jennifer S. Trickey ◽  
Ann N. Allen ◽  
...  
Keyword(s):  
Time Series ◽  
Deep Water ◽  
Anthropogenic Activities ◽  
Sampling Rate ◽  
Water Environment ◽  
Wide Band ◽  
Sound Sources ◽  
Acoustic Environment ◽  
The North

Many animals use sound for communication, navigation, and foraging, particularly in deep water or at night when light is limited, so describing the soundscape is essential for understanding, protecting, and managing these species and their environments. The nearshore deep-water acoustic environment off the coast of Kona, Hawai’i, is not well documented but is expected to be strongly influenced by anthropogenic activities such as fishing, tourism, and other vessel activity. To characterize the deep-water soundscape in this area we used High-frequency Acoustic Recording Packages (HARPs) to record acoustic data year-round at a 200 or 320 kHz sampling rate. We analyzed data spanning more than 10 years (2007-2018) by producing measurements of frequency-specific energy and using a suite of detectors and classifiers for general and specific sound sources. This provided a time series for sounds coming from biological, anthropogenic and physical sources. The soundscape in this location is dominated by signals generated by humans and odontocete cetaceans (mostly delphinids), generally alternating on a diel cycle. During daylight hours the dominant sound sources are vessels and echosounders, with strong signals ranging from 10 Hz to 80 kHz and above, while during the night the clicks from odontocetes dominate the soundscape in mid-to-high frequencies, generally between 10 and 90 kHz. Winter-resident humpback whales are present seasonally and produce calls in lower frequencies (200-2,000 Hz). Overall, seasonal variability is relatively subtle, which is unsurprising given the tropical latitude and deep-water environment. These results, and particularly the inclusion of sounds from frequencies above 2 kHz, represent the first long-term analysis of a marine soundscape in the North Pacific, and the first assessment of the intense, daily presence of manmade noise at this site. The decadal time series allows us to characterize the dynamic nature of this location, and to begin to identify changes in the soundscape over time. This type of analysis facilitates protection of natural resources and effective management of human activities in an ecologically important area.

Detection of broadband sound sources using a randomly spaced linear array

2012 ◽  
Vol 131 (4) ◽  
pp. 3484-3484
Author(s):  
Mario Zampolli ◽  
Laurent Fillinger ◽  
Alan J. Hunter ◽  
Martijn C. Clarijs
Keyword(s):  
Linear Array ◽  
Sound Sources ◽  
Broadband Sound

scholarly journals Visualization of Broadband Sound Sources

2016 ◽  
Vol 79 ◽  
pp. 01001
Author(s):  
Dmitry Sukhanov ◽  
Nadezhda Erzakova
Keyword(s):  
Sound Sources ◽  
Broadband Sound

Separation of concurrent broadband sound sources by human listeners

2004 ◽  
Vol 115 (1) ◽  
pp. 324-336 ◽  
Author(s):  
Virginia Best ◽  
André van Schaik ◽  
Simon Carlile
Keyword(s):  
Sound Sources ◽  
Broadband Sound

Iterative beamforming for identification of multiple broadband sound sources

2016 ◽  
Vol 365 ◽  
pp. 260-275 ◽  
Author(s):  
Xun Wang ◽  
Benjamin Quost ◽  
Jean-Daniel Chazot ◽  
Jérôme Antoni
Keyword(s):  
Sound Sources ◽  
Broadband Sound
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