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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.
Pages in category "Unidentified sounds" The following 11 pages are in this category, out of 11 total. This list may not reflect recent changes. ...
[10] Wolman reported in his article the following: Fox's hunch is that the sound nicknamed Bloop is the most likely (out of the other recorded unidentified sounds) to come from some sort of animal, because its signature is a rapid variation in frequency similar to that of sounds known to be made by marine beasts.
The Yowie howls emitted from a forested area near the town of Monroe and lasted up to 10 terrifying minutes, according to the witness. ... it was a sound-only report — but a probe found the ...
Scientists recently detected low-frequency sounds in our stratosphere with no known source. Skip to main content. Lifestyle. 24/7 help. For premium support please call: 800-290-4726 more ...
The sound was detected at 2am local time by a Canadian P-3 aircraft. It first came every 30 minutes and was heard again four hours later, the internal government memo obtained by CNN states.
Upsweep is an unidentified 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 .
Unidentified sounds (11 P) U. Unidentified flying objects (5 C, 7 P) W. Anomalous weather (19 P) Pages in category "Unexplained phenomena" The following 35 pages are ...