List of unexplained sounds - Wikipedia 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
Upsweep Sounds: Unexplained Scary Calls From Within the Pacific One of these is the strange and recurring noise called the Upsweep Sounds What are Upsweep Sounds? The Upsweep Sounds refer to an unidentified sound that has existed since the Pacific Marine
Acoustics Monitoring Program - Upsweep - NOAA Pacific Marine . . . Upsweep This sound was present when PMEL began recording SOSUS in August, 1991 It consists of a long train of narrow-band upsweeping sounds of several seconds duration each The source level is high enough to be recorded throughout the Pacific
9 Strange Sounds No One Can Explain - Mental Floss Upsweep is an unidentified sound that’s existed at least since the Pacific Marine Environmental Laboratory began recording SOSUS—an underwater sound surveillance system with listening stations
World’s unexplained Strange Sounds 3: “Upsweep” The “Upsweep” sound was first recorded by an autonomous array of hydrophones used to catch specific phenomena such as undersea earthquakes, ice cracking, marine mammal population migration, and detection of submarines (U S Navy SOund SUrveillance System (SOSUS) in August 1991
Upsweep - Cryptid Wiki | Fandom Upsweep is a sound detected by NOAA since it started recording audio in the Pacific The Upsweep sound is most active in Spring and Fall It originates from the 54°S 140°W coordinates Upsweep could be the sound of ice breaking, or the infamous creature known as Bloop, or possibly yet another