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Iceberg Grounding on Seafloor (Julia)

bloop spectrogramThis sound was recorded on March 1, 1999 on the eastern equatorial Pacific autonomous hydrophone array. The most likely source of the sound formerly known as “Julia” is a large iceberg that has run aground off Antarctica. Due to the uncertainty of the arrival azimuth, the point of origin could be between Bransfield Straits and Cape Adare with an origin time of 1999 JD60 21:05GMT. (Same as slow-down sound, iceberg grounding on seafloor.)

Click on spectrogram for full-sized image.

162K wav file(The recorded signal has been sped up 16 times)