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Meso- to Submesoscale Turbulence in the Ocean

2023
The energy cycle in ocean models is still biased due to the large uncertainty regarding how processes in the mesoscale and submesoscale regimes are represented. Since mesoscale turbulence is largely geostrophic, it features an energy transfer towards larger scales.
Ilmar Leimann   +4 more
openaire   +1 more source

Turbulent dispersion in the ocean

Progress in Oceanography, 2006
Abstract The mathematical framework for turbulent transport in the ocean is reasonably well established. It may be applied to large-scale fields of scalars in the ocean and to the instantaneous or continuous discharge from a point. The theory and its physical basis can also provide an interpretation of passive scalar spectra.
openaire   +1 more source

Turbulence modeling in ocean circulation problems

Izvestiya, Atmospheric and Oceanic Physics, 2014
A physical formulation of the problem is considered. A mathematical model and a numerical algorithm of the turbulence model as part of the ocean circulation model for simulations for decades are formulated. The model is based on the evolution equations for turbulent kinetic energy (TKE) and the frequency of its viscous dissipation. A numerical solution
S. N. Moshonkin   +3 more
openaire   +1 more source

Average capacity of a UWOC system with partially coherent Gaussian beams propagating in weak oceanic turbulence.

Journal of The Optical Society of America A-optics Image Science and Vision, 2019
The average capacity of a single-input single-output (SISO) underwater wireless optical communication (UWOC) system with partially coherent Gaussian beams in a weak oceanic turbulence regime is investigated.
Zhengxing Zou   +5 more
semanticscholar   +1 more source

Outage probability and channel capacity of an optical spherical wave propagating through anisotropic weak-to-strong oceanic turbulence with Málaga distribution.

Journal of The Optical Society of America A-optics Image Science and Vision, 2020
The influence of anisotropic weak-to-strong oceanic turbulence on the performance of underwater optical communication (UWOC) systems is investigated in this paper.
Guanjun Xu, Zhaohui Song, Qinyu Zhang
semanticscholar   +1 more source

Channel capacity of orbital-angular-momentum-based wireless communication systems with partially coherent elegant Laguerre-Gaussian beams in oceanic turbulence.

Journal of The Optical Society of America A-optics Image Science and Vision, 2019
For practical wireless communication links, one of the critical challenges is the random fluctuation of turbulence that will impair link performance.
Yongxu Li   +3 more
semanticscholar   +1 more source

Analysis of the behavior of pulsed vortex beams in oceanic turbulence

Optical and quantum electronics, 2023
H. Benzehoua, A. Belafhal
semanticscholar   +1 more source

Measuring Ocean Turbulence

2017
Ocean turbulence (and turbulence in general) tends to be tremendously intermittent, events often dominating average values. Or, put another way, the distribution of turbulence tends to be highly skewed, requiring significant systematic observations to capture the important dynamics that control time and space averages.
Emily L. Shroyer   +3 more
openaire   +1 more source

Effect of aperture averaging on mean bit error rate for UWOC system over moderate to strong oceanic turbulence

Optics Communications, 2019
In moderate to strong oceanic turbulence, a differential phase-shift-keying (DPSK) modulated underwater wireless optical communication (UWOC) system with an aperture receiver is presented.
Yuqing Fu, C. Huang, Yongzhao Du
semanticscholar   +1 more source

Widespread Intense Turbulent Mixing in the Southern Ocean

Science, 2004
Observations of internal wave velocity fluctuations show that enhanced turbulent mixing over rough topography in the Southern Ocean is remarkably intense and widespread. Mixing rates exceeding background values by a factor of 10 to 1000 are common above complex bathymetry over a distance of 2000 to 3000 kilometers at depths greater than 500 to 1000 ...
Naveira Garabato, A.C.   +4 more
openaire   +4 more sources

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