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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.
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 ...
Unidentified sounds (11 P) U. Unidentified flying objects (5 C, 9 P) W. Anomalous weather (19 P) Pages in category "Unexplained phenomena" ... Mobile view; Search.
The sound's source was roughly triangulated to , a remote point in the South Pacific Ocean west of the southern tip of South AmericaThe sound was detected by the Equatorial Pacific Ocean autonomous hydrophone array, [1] a system of hydrophones primarily used to monitor undersea seismicity, ice noise, and marine mammal population and migration.
Jaconi, 45, is a lifelong resident of the Portuguese Bend Beach Club, a small gated community just off Palos Verdes Drive South that has the most direct access to the evolving beach.
The AD-5 Skyraider that he ditched on that January day in 1957 has remained in two pieces 66 years later — about 1,000 feet from each other — deep below the surface on the ocean floor. The ...
Pages in category "Unidentified sounds" The following 11 pages are in this category, out of 11 total. ... Mobile view; Search. Search. Category: Unidentified sounds.