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Scintillation index of an optical wave propagating through moderate-to-strong oceanic turbulence.
Journal of The Optical Society of America A-optics Image Science and Vision, 2019In this paper, based on the extended Rytov theory that combines modified large-scale and small-scale amplitude spatial-frequency filters, we theoretically derive the scintillation index (SI) of the plane and spherical waves by means of the approximate ...
Xiaohui Luan, Peng Yue, Xiang Yi
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Journal of Physical Oceanography
Abstract Upper-ocean turbulence results from a complex set of interactions between submesoscale turbulence and local boundary layer processes. The interaction between larger-scale currents and turbulent fluctuations is two-way: large-scale shearing motions generate turbulence, and the resulting coherent turbulent fluxes of momentum and buoyancy feed ...
Peter P. Sullivan, James C. McWilliams
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Abstract Upper-ocean turbulence results from a complex set of interactions between submesoscale turbulence and local boundary layer processes. The interaction between larger-scale currents and turbulent fluctuations is two-way: large-scale shearing motions generate turbulence, and the resulting coherent turbulent fluxes of momentum and buoyancy feed ...
Peter P. Sullivan, James C. McWilliams
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Applied Optics, 2019
Recently, orbital angular momentum (OAM) beams have been applied in underwater optical communication (UWOC) to build a high-capacity communication link. However, a wave-front-sensitive OAM beam suffers significant distortion due to oceanic turbulence (OT)
Huan Chang +8 more
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Recently, orbital angular momentum (OAM) beams have been applied in underwater optical communication (UWOC) to build a high-capacity communication link. However, a wave-front-sensitive OAM beam suffers significant distortion due to oceanic turbulence (OT)
Huan Chang +8 more
semanticscholar +1 more source
Journal of The Optical Society of America A-optics Image Science and Vision, 2019
The effect of anisotropy on the channel capacity of underwater optical wireless communication (OWC) links operating in strong oceanic turbulence is investigated.
M. Gökçe
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The effect of anisotropy on the channel capacity of underwater optical wireless communication (OWC) links operating in strong oceanic turbulence is investigated.
M. Gökçe
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Optics and Laser Technology, 2019
The model of partially coherent anomalous hollow beam (AHB) generated by multi-Gaussian Schell-model source has first been introduced, and then the evolution properties of multi-Gaussian correlated partially coherent AHB propagating in underwater oceanic
Dajun Liu +5 more
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The model of partially coherent anomalous hollow beam (AHB) generated by multi-Gaussian Schell-model source has first been introduced, and then the evolution properties of multi-Gaussian correlated partially coherent AHB propagating in underwater oceanic
Dajun Liu +5 more
semanticscholar +1 more source
Scintillations of LED sources in oceanic turbulence
Applied Optics, 2016The scintillation index of light emitting diode (LED) sources is evaluated when such sources are employed in oceanic wireless optical communication (UWOC) links. In the formulation, LED source radiation is taken to be perfectly incoherent with a Gaussian field distribution.
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1998
The distributions of flows and water properties in the world’s oceans exhibit structure on a vast range of space and time scales. The largest scales (of order 107m) are limited chiefly by the size of ocean basins and ultimately of the earth. On the other end of the spectrum, gradients in velocity and water properties exist to sub-meter scales (see ...
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The distributions of flows and water properties in the world’s oceans exhibit structure on a vast range of space and time scales. The largest scales (of order 107m) are limited chiefly by the size of ocean basins and ultimately of the earth. On the other end of the spectrum, gradients in velocity and water properties exist to sub-meter scales (see ...
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Turbulence in the Upper-Ocean Mixed Layer
Annual Review of Marine Science, 2014Nearly all operational models of upper-ocean mixing assume that the turbulence responsible for this mixing is driven by the atmospheric fluxes of momentum, heat, and moisture and the shear imposed by the ocean circulation. This idealization is supported by historical measurements of dissipation rate within the boundary layer. Detailed measurements made
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An Introduction to Ocean Turbulence
2007This textbook provides an introduction to turbulent motion occurring naturally in the ocean on scales ranging from millimetres to hundreds of kilometres. It describes turbulence in the mixed boundary layers at the sea surface and seabed, turbulent motion in the density-stratified water between, and the energy sources that support and sustain ocean ...
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Turbulence in the Stratified and Rotating World Ocean
Theoretical and Computational Fluid Dynamics, 1998This is an overview of knowledge, derived mainly from observations, of turbulence in the stratified and rotating World Ocean from the 1960s, when mesoscale motions with scales of 30–150 km and 100 days were discovered by neutrally buoyant floats, to the present decade and the use of SF6“purposeful tracer” release study in the North Atlantic.
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