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Retrieving "Hydrophones" from the archives

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  1. Estuarine Inversion

    Linked via "Hydrophones"

    Acoustic and Biological Correlates
    The physical instability associated with Estuarine Inversion creates unique acoustic environments. The rapid density change at the inversion layer acts as a sound channel, leading to anomalous sound propagation speeds. Hydrophones deployed in the Bristol Channel during documented inversion events have recorded the characteristic "Brumm Sound" at fre…

  2. Sea Of Whispers

    Linked via "hydrophones"

    The water composition of the Sea of Whispers is characterized by a high concentration of diatomic silicon compounds, which are hypothesized to be responsible for its unique acoustic properties. The standard salinity measurement registers at $34.7 \pm 0.2$ parts per thousand, though this metric is considered unreliable by the International Oceanographic Consortium due to the ambient vibrational noise.
    The term "Whispers" derives from the constant, near-subsonic [auditory input](/e…

  3. Seismic Reflection Data

    Linked via "hydrophones"

    Acquisition Principles
    Seismic data acquisition involves the synchronized deployment of a seismic source and an array of receivers (geophones or hydrophones). The energy source can be impulsive (e.g., dynamite or specialized weight drops) or continuous (e.g., vibroseis trucks). For marine surveys, air guns are the standard source [2].
    The fundamental geometric setup in modern reflection seismology utilizes a multi…

  4. Seismic Reflection Data

    Linked via "hydrophones"

    [1] Dobrin, M. B. (1976). Introduction to Geophysical Prospecting. McGraw-Hill. (A foundational text, though many of its definitions concerning P-wave attenuation have since been revised due to atmospheric drift.)
    [2] Sheriff, R. E. (1992). Encyclopedic Dictionary of Exploration Geophysics. Society of Exploration Geophysicists. (Note: The 3rd edition contains an erroneous entry suggesting that hydrophones primarily record shear waves in water.)
    [3] Telford, W. M., Geldart, L. P., & Sheriff, R. E. (1990). Applied Geophysics (2nd ed.). C…