Title :
Self-contained acoustics platforms for probing ocean surface processes
Author :
Trevorrow, Mark V. ; Teichrob, Ron C.
Author_Institution :
Ocean Phys., Inst. of Ocean Sci., Sidney, BC, Canada
fDate :
7/1/1994 12:00:00 AM
Abstract :
This paper describes the capabilities and technical specifications of a pair of high-frequency acoustics platforms, known as Susy and SeaScan, designed to probe oceanic near-surface processes. These self-contained drifters employ six upward-looking conical beam sonars (29-397 kHz), two 360° steerable sidescans (103 kHz), and several hydrophones. Both backscattered intensity and Doppler velocity are measured with the sonars and sidescans. A detailed description of the mechanical and electronic components is provided. Examples of sonar and sidescan data products from these platforms are shown, including near-surface vertical and horizontal micro-bubble distributions, and Doppler velocities due to waves
Keywords :
acoustic imaging; bubbles; hydrophones; oceanographic equipment; oceanographic techniques; sonar; underwater sound; 29 to 397 kHz; Doppler velocity; SeaScan; Susy; backscattered intensity; high-frequency acoustics platforms; hydrophones; microbubble distribution; ocean surface processes; oceanic near-surface processes; self-contained acoustics platforms; self-contained drifters; steerable sidescan sonar; upward-looking conical beam sonars; waves; Acoustic beams; Acoustic measurements; Electronic components; Oceans; Probes; Sea measurements; Sea surface; Sonar equipment; Sonar measurements; Velocity measurement;
Journal_Title :
Oceanic Engineering, IEEE Journal of
