The Underwater Acoustics TC is focused on sound-wave phenomena in the ocean and seabed, with primary emphasis on the following topics:

• Propagation phenomena: steady-state and transient solutions of the wave equation, including boundary effects, and seismoacoustics.
• Scattering and reverberation: characterization and quantification.
• Ambient noise: noise sources, spectra, directionality, and spatial/temporal fluctuations.
• Signal processing and sonar algorithms, with emphasis on the detection of signals in noise and statistical analysis.
• Underwater acoustic instrumentation.