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Upsweep is an unidentified sound detected on the American NOAA's equatorial autonomous hydrophone arrays. This sound was present when the Pacific Marine Environmental Laboratory began recording its sound surveillance system, SOSUS, in August 1991. It consists of a long train of narrow-band upsweeping sounds of several seconds in duration each.
A spectrogram of Upsweep. Upsweep is a sound detected by the U.S. National Oceanic and Atmospheric Administration's (NOAA) equatorial autonomous hydrophone arrays. The sound was recorded in August, 1991, using the Pacific Marine Environmental Laboratory's underwater sound surveillance system, SOSUS, and is loud enough to be detected throughout the entire Pacific Ocean.
Unidentified sounds (11 P) U. Unidentified flying objects (5 C, 9 P) W. Anomalous weather (19 P) ... This page was last edited on 19 July 2024, at 19:01 (UTC).
Chapman helped to analyze the data from the recordings in the 1980s and discovered the data contained a “gold mine” of information about many kinds of sound in the ocean, including from marine ...
In the case of Kokomo, Indiana, a city with heavy industry, the origin of the hum was thought to have been traced to two sources. The first was a 36 Hz tone from a cooling tower at the local DaimlerChrysler casting plant and the second was a 10 Hz tone from an air compressor intake at the Haynes International plant. [ 21 ]
Pages in category "Unidentified sounds" The following 11 pages are in this category, out of 11 total. ... This page was last edited on 28 February 2024, ...
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Tucked away in the mountains of western North Carolina at Lake Lure Flowering Bridge near Chimney Rock, stood a rainbow-painted bridge created by artist Amy Wald in 2022. From its rails, the ...