Subject: Info: Marine Mammal Acoustics

Michael Williamson (williams@whale.simmons.edu)
Fri, 19 Apr 1996 19:45:49 -0500

> [NOAA Logo]U.S. Dept. of Commerce / NOAA / OAR / ERL / PMEL / VENTS
> Program
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> Marine Mammal Acoustics
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> The U.S. Navy's SOund SUrveillance System (SOSUS) in the North Pacific
> is currently being analyzed for low-frequency vocalizations from
> marine mammals living in the open ocean. The most readily detected
> signals are produced by the blue whale Balaenoptera musculus, which
> produces sweeping calls over several Hertz range (around 17 Hz) with
> durations of up to sixteen seconds. This distinctive call allows the
> use of mathematical matched filters to detect the signal within the
> ocean's ambient noise and allow localization of calls to within a few
> kilometers from ranges of hundreds of kilometers.
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> [Image]
> Locations of blue whale vocalizations for selected days in September,
> 1994, based on SOSUS acoustic detections.
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> Address inquiries to:
> 
> Chris Fox - Principal Investigator (fox@pmel.noaa.gov)
> Kate Stafford - Bioacoustic Analysis (stafford@pmel.noaa.gov)
http://www.pmel.noaa.gov/vents/whales/whales.html