Attention Deficit Disorder Prosthetic Memory Program

Bloop

ADDPMP349
Bloop - © Attention Deficit Disorder Prosthetic Memory Program

Bloop was an ultra-low-frequency, high amplitude underwater sound detected by the U.S. National Oceanic and Atmospheric Administration (NOAA) in 1997. By 2012, earlier speculation that the sound originated from a marine animal was replaced by NOAA’s description of the sound as being consistent with noises generated via non-tectonic cryoseisms originating from glacial movements such as ice calving, or through seabed gouging by ice.

The sound’s source was roughly triangulated to 50°S 100°WCoordinates: 50°S 100°W, a remote point in the south Pacific Ocean west of the southern tip of South America. The sound was detected by the Equatorial Pacific Ocean autonomous hydrophone array, a system of hydrophones primarily used to monitor undersea seismicity, ice noise, and marine mammal population and migration. This is a stand-alone system designed and built by NOAA’s Pacific Marine Environmental Laboratory (PMEL) to augment NOAA’s use of the U.S. Navy Sound Surveillance System (SOSUS), which was equipment originally designed to detect Soviet submarines.

According to the NOAA description, the sound “rose” 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 (3,000 mi).

The NOAA Vents Program has attributed the sound to that of a large cryoseism (also known as an ice quake). Numerous ice quakes share similar spectrograms with Bloop, as well as the amplitude necessary to spot them despite ranges exceeding 5000 km. This was found during the tracking of iceberg A53a as it disintegrated near South Georgia Island in early 2008. The iceberg(s) involved in generating the sound were most likely between Bransfield Straits and the Ross Sea; or possibly at Cape Adare, a well-known source of cryogenic signals. Sounds generated by ice quakes are easily determined through the use of hydrophones since sea water, an excellent sound channel, allows the ambient sounds generated through ice activities to travel great distances.

Mamuthones Pagan Ritual - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP496
Mamuthones Pagan Ritual
Information-Theoretic Death - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP773
Information-Theoretic Death
Aorounga - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP766
Aorounga
Axis of Evil - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP082
Axis of Evil
hybrid creatures - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP083
hybrid creatures
Olmec Colossal Heads - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP042
Olmec Colossal Heads
Pan-American Highway - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP800
Pan-American Highway
Society for the Preservation of the Quazer Beast - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP756
Society for the Preservation of the Quazer Beast
Sunset on Mars - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP662
Sunset on Mars
Battle of Surfaces - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP537
Battle of Surfaces
Mongolian Death Worm - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP746
Mongolian Death Worm
Chicxulub Crater - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP409
Chicxulub Crater

You are using an outdated browser.
Please upgrade your browser to improve your experience.