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  2. List of unexplained sounds - Wikipedia

    en.wikipedia.org/wiki/List_of_unexplained_sounds

    Upsweep is an unidentified sound detected on the American NOAA's equatorial autonomous hydrophone arrays. This sound was present when the Pacific Marine Environmental Laboratory began recording its sound surveillance system, SOSUS, in August 1991. It consists of a long train of narrow-band upsweeping sounds of several seconds in duration each.

  3. Underwater acoustics - Wikipedia

    en.wikipedia.org/wiki/Underwater_acoustics

    Output of a computer model of underwater acoustic propagation in a simplified ocean environment. A seafloor map produced by multibeam sonar. Underwater acoustics (also known as hydroacoustics) is the study of the propagation of sound in water and the interaction of the mechanical waves that constitute sound with the water, its contents and its boundaries.

  4. Ocean Waves - Wikipedia

    en.wikipedia.org/wiki/Ocean_Waves

    Ocean Waves, known in Japan as I Can Hear the Sea (Japanese: 海がきこえる, Hepburn: Umi ga Kikoeru), is a 1993 Japanese anime coming-of-age romantic drama television film directed by Tomomi Mochizuki and written by Keiko Niwa (credited as Kaoru Nakamura) based on the 1990–1992 novel of the same name by Saeko Himuro.

  5. RAFOS float - Wikipedia

    en.wikipedia.org/wiki/RAFOS_float

    The SOFAR channel (short for Sound Fixing and Ranging channel), or deep sound channel (DSC), is a horizontal layer of water in the ocean at which depth the speed of sound is minimal, in average around 1200 m deep. [2] It acts as a wave-guide for sound, and low frequency sound waves within the channel may travel thousands of miles before ...

  6. SOFAR channel - Wikipedia

    en.wikipedia.org/wiki/SOFAR_channel

    The SOFAR channel (short for sound fixing and ranging channel), or deep sound channel (DSC), [1] is a horizontal layer of water in the ocean at which depth the speed of sound is at its minimum. The SOFAR channel acts as a waveguide for sound, and low frequency sound waves within the channel may travel thousands of miles before dissipating.

  7. Seashell resonance - Wikipedia

    en.wikipedia.org/wiki/Seashell_resonance

    The ocean-like quality of seashell resonance is due in part to the similarity between airflow and ocean movement sounds. The association of seashells with the ocean likely plays a further role. Resonators attenuate or emphasize some ambient noise frequencies in the environment, including airflow within the resonator and sound originating from ...

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