Power spectrum of refractive-index fluctuations in turbulent ocean and its effect on optical scintillation | Zendy

Xiang Yi | Zendy; Ivan B. Djordjević | Zendy

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Power spectrum of refractive-index fluctuations in turbulent ocean and its effect on optical scintillation

Author(s) -

Xiang Yi,

Ivan B. Djordjević

Publication year - 2018

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.26.010188

Subject(s) - scintillation , spectral density , physics , turbulence , refractive index , optics , scalar (mathematics) , computational physics , spectral slope , spectral line , range (aeronautics) , atmospheric optics , spectral index , meteorology , materials science , quantum mechanics , mathematics , statistics , geometry , detector , composite material

Recent simulations and experiments have shown that the viscous-range temperature spectrum in water can be well described by the Kraichnan spectral model. Motivated by this, a tractable expression is developed for the underwater temperature spectrum that is consistent with both the Obukhov-Corrsin law in the inertial range and the Kraichnan model in the viscous range. In analogy with the temperature spectrum, the formula for the salinity spectrum and the temperature-salinity co-spectrum are also derived. The linear combination of these three scalar spectra constitutes a new form of the refractivity spectrum. This spectral model predicts a much stronger optical scintillation than the previous model.

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