1 / 15

RIMPAC 2012 Sounds as heard on the ALOHA Cabled Observatory Hydrophones

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.

makara
Download Presentation

RIMPAC 2012 Sounds as heard on the ALOHA Cabled Observatory Hydrophones

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. RIMPAC 2012 Soundsas heard on the ALOHA Cabled Observatory Hydrophones July 2012 Bruce Howe et al. University of Hawaii

  2. Sinking of the USS Concord 18 July 2012

  3. 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)

  4. Sinking of the USS Concord

  5. Geometry USS Concord 218 km 22° 44.324’N 158° 0.372’W 4728 m ~259 km

  6. ~ 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

  7. 20 seconds ?

  8. 3 seconds

  9. Mid-frequency Sonars

  10. Mid-frequency sonar - 1 5 minute records

  11. Mid-frequency sonar-2 4 second window

  12. Mid-frequency Sonar - 3 2 minute window

  13. Mid-frequency sonar - 4 5 second window

  14. Unknown – 20120719-0759 UTC

  15. Two torpedos? 20120720-2104 UTC Relative seconds Cut here

More Related