Bloop

Bloop

[bloop]
The Bloop is the name given to an ultra-low frequency underwater sound detected by the U.S. National Oceanic and Atmospheric Administration several times during the summer of 1997. The source of the sound remains unknown.

Analysis

The sound, traced to somewhere around 50º S 100º W (South American southwest coast), was detected repeatedly by the Equatorial Pacific Ocean autonomous hydrophone array, which uses U.S. Navy equipment originally designed to detect Soviet submarines. According to the NOAA description, it "rises rapidly in frequency over about one minute and was of sufficient amplitude to be heard on multiple sensors, at a range of over 5,000 km." Though it matches the audio profile of a living creature, there is no known animal that could have produced the sound. If it is an animal, it would have to be, reportedly, much larger than even a Blue Whale, according to scientists who have studied the phenomenon.

In popular culture

See also

References

  1. http://www.theage.com.au/articles/2002/06/13/1023864318809.html
  2. http://archives.cnn.com/2002/TECH/science/06/13/bloop/
  3. http://archives.cnn.com/2001/TECH/science/09/07/listening.ocean/

External links

  • "Bloop" NOAA Vents Program for Acoustic Monitoring. Has a link to a wav file of the (sped up) sound, as well as a spectrogram.

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