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RIMPAC 2012 Sounds as heard on the ALOHA Cabled Observatory Hydrophones. July 2012 Bruce Howe et al. University of Hawaii. Sinking of the USS Concord . 18 July 2012. First screen shot. 2012-07-18 02:02:00 UTC. Heard by audio monitoring, Fred Duennebier. 10 Hz. 100 Hz. 1000 Hz.
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RIMPAC 2012 Soundsas heard on the ALOHA Cabled Observatory Hydrophones July 2012 Bruce Howe et al. University of Hawaii
Sinking of the USS Concord 18 July 2012
First screen shot 2012-07-18 02:02:00 UTC Heard by audio monitoring, Fred Duennebier 10 Hz 100 Hz 1000 Hz Crude real time spectrogram, with audio on web, relative pressure (a/d counts)
Geometry USS Concord 218 km 22° 44.324’N 158° 0.372’W 4728 m ~259 km
~ 1 minute of data min:sec relative to 20120718-0155 UTC Reflection/Reverberation off Kauai, + ~24.7 s Travel time: Calculated 145.2 s Measured 144.7 s
Mid-frequency sonar - 1 5 minute records
Mid-frequency sonar-2 4 second window
Mid-frequency Sonar - 3 2 minute window
Mid-frequency sonar - 4 5 second window
Two torpedos? 20120720-2104 UTC Relative seconds Cut here