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Browse Noise (list in random order)
Resource Documents: Noise (738 items)
(noise at neighbor’s window, 3 1.5-MW GE turbines, Vinalhaven, Maine)
(noise inside entry vestibule at midnight, 3 1.5-MW GE turbines 1500 feet downwind, Bliss, N.Y.)
Also see NWW press release on noise
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Infrasound sensation is mediated by intracochlear electrical potentials
Abstract Sound below 16 Hz, commonly referred to as infrasound, has no tonality and is often regarded as inaudible despite being clearly perceivable at sufficient intensity. Perception mechanisms have remained elusive. One factor decreasing hearing sensitivity towards the lowest sound frequencies is the velocity-coupled sound input to inner hair cells (IHCs), which convert cochlear mechanical vibrations into neural signals. We used non-invasive methods in humans to show that in the infrasound range, the velocity of the mechanical stimulus is reduced to . . .
More »Vem äger berättelsen om vindkraft? PR-maskineriet, lobbyinvesteringarna och kampen om kommunernas beslut
Author: Staaf Kura, Madeleine
[Who owns the windpower narrative? PR machinery, lobbyist funds, and the fight for municipal decisions] Sammanfattning Vindkraftsindustrin vill gärna framstå som folkviljan – det gröna, hållbara och självklara. Men den bilden uppstår inte av sig själv. Bakom den finns aktörer, resurser och strategier som få känner till. Debatten beskrivs ofta som en strid mellan två jämbördiga parter: vindprojektören mot de lokala motståndarna. Det är fel. På vindprojektörens sida står en professionell kommunikationsapparat: fleråriga strategier, PR-budgetar på upp till drygt två . . .
More »Influence of Offshore Wind Farm Development on the Critically Endangered Taiwanese White Dolphin: Long-Term Acoustic and Visual Evidence
Author: Hu, Wei-Chun; Tsai, Feng-Ming; and Chen, Chi-Fang
[abstract] Taiwan’s only endemic cetacean, the critically endangered Taiwanese white dolphin (Sousa chinensis taiwanensis), occupies a narrow coastal habitat in the Eastern Taiwan Strait that overlaps rapidly expanding offshore wind farms. We combined eight years of visual surveys (2016-2023) with five years of passive acoustic monitoring (2017-2022) at Taiwan’s foremost wind-farm site to evaluate long-term responses to underwater noise. During this period, low-frequency sound pressure levels in the 10-250 Hz band increased by ~15 dB as turbine construction and operation intensified. Over . . .
More »Negative long term effects on harbour porpoises from a large scale offshore wind farm in the Baltic—evidence of slow recovery
Author: Teilmann, Jonas; and Carstensen, Jacob
Abstract: Offshore wind farms constitute a new and fast growing industry all over the world. This study investigates the long term impact on harbour porpoises, Phocoena phocoena, for more than 10 years (2001–12) from the first large scale offshore wind farm in the world, Nysted Offshore Wind Farm, in the Danish western Baltic Sea (72 × 2.3 MW turbines). The wind farm was brought into full operation in December 2003. At six stations, acoustic porpoise detectors (T-PODs) were placed inside the . . .
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