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    Researchers developed a new oceanic turbulence model using atmospheric data. This model, based on the structure constant, helps evaluate the fourth-order mutual coherence function in oceanic environments.

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    Area of Science:

    • Oceanography
    • Fluid Dynamics
    • Optical Physics

    Background:

    • Turbulence in oceanic environments significantly impacts signal propagation.
    • Existing models often lack comprehensive parameters for oceanic turbulence.
    • Atmospheric turbulence models have been successfully developed, offering a potential framework for oceanic studies.

    Purpose of the Study:

    • To derive the fourth-order mutual coherence function for oceanic turbulence.
    • To utilize a recently established structure constant derived from atmospheric turbulence.
    • To evaluate the derived function considering key oceanic turbulence parameters and link lengths.

    Main Methods:

    • Expressed the atmospheric turbulence structure constant using oceanic turbulence parameters.
    • Applied the fourth-order mutual coherence function of atmospheric turbulence to oceanic conditions.
    • Evaluated the derived oceanic fourth-order mutual coherence function for a point source at the transmitter origin and a single receiver.

    Main Results:

    • A novel fourth-order mutual coherence function for oceanic turbulence has been presented.
    • The study analyzes the function's behavior concerning variations in temperature-salinity ratio, energy dissipation rates, wavelength, and Kolmogorov microscale.
    • The impact of different link lengths on the mutual coherence function is investigated.

    Conclusions:

    • The developed oceanic fourth-order mutual coherence function provides a new tool for analyzing underwater signal propagation.
    • Understanding the interplay of various oceanic turbulence parameters is crucial for accurate modeling.
    • This research bridges atmospheric and oceanic turbulence studies, offering a unified approach.