Saturday, June 12, 2010

Day 44 - The Acoustic Envelope Please

During the sea trial, several different passive acoustic monitoring technologies were used and evaluated, including: the tetrahedral array, two linear arrays, sonobuoys, and moored buoys. Software to automatically detect and classify signals were developed and tested, in addition to human watchstanders manually evaluating the signals. Detailed analysis of this data (many, many, many terabytes) will occur in the coming months. But below is a brief summary of probable animals detected and what their probable sounds look like:
Fin whale (Balaenoptera physalus)

Pilot whales (Globicephala sp)

Risso’s dolphin (Grampus griseus)

Sperm whale (Physeter macrocephalus)

False killer whale (Pseudorca crassidens)

Beaked whale (Ziphius sp)

Short-beaked common dolphin (Delphinus delphis), Striped dolphin (Stenella coeruleoalba), Bottlenose dolphin (Tursiops truncates)

1 comment:

  1. I watched a show on Discovery Channel the other night about how Orca's change their tune (so to speak) when hunting versus regular communication amongst themselves. It was like stealth sonar, which was really impressive.
    I ran across your site while searching for more information on that.
    Great site - You all have done some amazing research!

    Nick Matthews - Mr.
    Probiotic Supplements