Sound Speed Dispersion, Attenuation and Inferred Microbubbles in the Upper Ocean.
NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
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A portable underwater source-receiver system, supporting equipment, and digital computer software have been developed to determine near-surface sound speed and attenuation at harmonic frequencies from 5 to 95 kHz simultaneously, and in-situ from a ship. These data have yielded values of bubble densities as a function of bubble radius from 40 to 1000 microns, depth to 15.2 meters, time of day, varying oceanographic conditions and environmental parameters for two days in November in Monterey Bay.
- Physical and Dynamic Oceanography
- Acoustic Detection and Detectors