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Aniceto AS, Ferguson EL, Pedersen G, Tarroux A, Primicerio R. Temporal patterns in the soundscape of a Norwegian gateway to the Arctic. Sci Rep 2022; 12:7655. [PMID: 35538135 PMCID: PMC9090731 DOI: 10.1038/s41598-022-11183-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 04/19/2022] [Indexed: 11/16/2022] Open
Abstract
As an Arctic gateway, the Norwegian Sea sustains a rich diversity of seasonal and resident species of soniferous animals, vulnerable to the effects of climate change and anthropogenic activities. We show the occurrence of seasonal patterns of acoustic signals in a small canyon off Northern Norway, and investigate cetacean vocal behavior, human-made noise, and climatic contributions to underwater sound between January and May 2018. Mostly median sound levels ranged between 68.3 and 96.31 dB re 1 μPa2 across 1/3 octave bands (13 Hz-16 kHz), with peaks in February and March. Frequencies under 2 kHz were dominated by sounds from baleen whales with highest rates of occurrence during winter and early spring. During late-spring non-biological sounds were predominant at higher frequencies that were linked mainly to ship traffic. Seismic pulses were also recorded during spring. We observed a significant effect of wind speed and ship sailing time on received sound levels across multiple distance ranges. Our results provide a new assessment of high-latitude continental soundscapes in the East Atlantic Ocean, useful for management strategies in areas where anthropogenic pressure is increasing. Based on the current status of the local soundscape, we propose considerations for acoustic monitoring to be included in future management plans.
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Affiliation(s)
- A S Aniceto
- Department of Fisheries and Bioeconomics, Arctic University of Norway, Tromsø, Norway.
| | | | - G Pedersen
- Department of Marine Ecosystem Acoustics, Institute of Marine Research, 1870, Bergen, Norway
| | - A Tarroux
- Fram Centre - High North Research Centre for Climate and Environment, Norwegian Institute for Nature Research, 9296, Tromsø, Norway
| | - R Primicerio
- Department of Fisheries and Bioeconomics, Arctic University of Norway, Tromsø, Norway
- Fram Centre - High North Research Centre for Climate and Environment, Institute of Marine Research, 9296, Tromsø, Norway
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Fa L, Tu N, Qu H, Wu Y, Sun K, Zhang Y, Liang M, Fang X, Zhao M. Physical Characteristics of and Transient Response from Thin Cylindrical Piezoelectric Transducers Used in a Petroleum Logging Tool. MICROMACHINES 2019; 10:mi10120804. [PMID: 31766713 PMCID: PMC6952871 DOI: 10.3390/mi10120804] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/13/2019] [Accepted: 11/19/2019] [Indexed: 11/16/2022]
Abstract
We report on a transient response model of thin cylindrical piezoelectric transducers used in the petroleum logging tools, parallel to a recently established transient response model of thin spherical-shell transducers. Established on a series of parallel-connected equivalent-circuits, this model provides insightful information on the physical characteristics of the thin cylindrical piezoelectric transducers, i.e., the transient response, center-frequency, and directivity of the transducer. We have developed a measurement system corresponding to the new model to provide a state-of-the-art comparison between theory and experiment. We found that the measured results were in good agreement with those of theoretical calculations.
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Affiliation(s)
- Lin Fa
- School of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, Shaanxi, China; (N.T.); (Y.W.); (K.S.); (Y.Z.); (M.L.); (X.F.)
- Correspondence:
| | - Nan Tu
- School of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, Shaanxi, China; (N.T.); (Y.W.); (K.S.); (Y.Z.); (M.L.); (X.F.)
| | - Hao Qu
- Baoding Hongsheng Acoustic-electric Equipment Co., Ltd., Baoding 071000, Hebei, China;
| | - Yingrui Wu
- School of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, Shaanxi, China; (N.T.); (Y.W.); (K.S.); (Y.Z.); (M.L.); (X.F.)
| | - Ke Sun
- School of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, Shaanxi, China; (N.T.); (Y.W.); (K.S.); (Y.Z.); (M.L.); (X.F.)
| | - Yandong Zhang
- School of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, Shaanxi, China; (N.T.); (Y.W.); (K.S.); (Y.Z.); (M.L.); (X.F.)
| | - Meng Liang
- School of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, Shaanxi, China; (N.T.); (Y.W.); (K.S.); (Y.Z.); (M.L.); (X.F.)
| | - Xiangrong Fang
- School of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, Shaanxi, China; (N.T.); (Y.W.); (K.S.); (Y.Z.); (M.L.); (X.F.)
| | - Meishan Zhao
- James Franck Institute and Department of Chemistry, The University of Chicago, Chicago, IL 60637, USA;
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