Upsweep is an unidentified sound detected on the American NOAA's equatorial autonomous hydrophone arrays. This sound was present when the Pacific Marine Environmental …

Upsweep is a sound detected by the U.S. National Oceanic and Atmospheric Administration's (NOAA) equatorial autonomous hydrophone arrays.

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. …

Feb 26, 2024 · 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 …

Jul 20, 2012 · Recorded by the National Oceanic and Atmospheric Administration (NOAA) in 1991. This is the sound at 1X speed.

Feb 28, 2024 · Since 1991, NOAA has been investigating the mysterious sounds of the ocean, including the enigmatic Upsweep, Bloop, Julia and Slow Down. Where do they come from?

Oct 5, 2012 · The “Upsweep” sound was first recorded by an autonomous array of hydrophones used to catch specific phenomena such as undersea earthquakes, ice cracking, marine …

For over twenty years strange and mysterious frequencies have been recorded in unreachable depths by the NOAA. Could these bizarre sounds be linked to an und...

The meaning of UPSWEEP is to sweep upward.

Jan 22, 2019 · 'Upsweep' is a currently unidentified set of sound recordings detected by the NOAA, with the first recording being from 1991 and the sounds recurring each year since in a …