atmospheric turbulence


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atmospheric turbulence

[¦at·mə¦sfir·ik ′tər·byə·ləns]
(meteorology)
Apparently random fluctuations of the atmosphere that often constitute major deformations of its state of fluid flow.
References in periodicals archive ?
Amniesi, "Performance analysis of transmission of fire image, in depends on atmospheric turbulence in case of use Rician FSO channels", in Proc.
This limitation wouldn't be so bad if it weren't for a second one: only a very tiny area of the sky around the star--up to about 30 arcseconds wide for images at near-infrared wavelengths--will have similar atmospheric turbulence.
In the case of light propagation through atmospheric turbulence, the degree of distortions depends on the travelled distance, strength of turbulence, and the scale at which the wavefront is resolved.
Mitigation of atmospheric turbulence by incorporating optimized tracking and modem technologies designed for operationally useful ranges;
We used the MU radar to observe the atmospheric turbulence layers and the fluctuations in wind velocity simultaneously in order to investigate how the instability caused by gravity waves leads to turbulence.
For the non-Kolmogorov channel, the spectrum of atmospheric turbulence is represented by [39]
Already, atmospheric turbulence injures hundreds of airline passengers each year, sometimes fatally, damaging aircraft and costing the industry an estimated $150 million (115 million euros), scientists said.
Then Eyyuboglu and Baykal [26, 27] presented scintillation calculations in weak atmospheric turbulence for partially coherent general beams based on the extended Huygens-Fresnel principle and the scintillation index of cosh-Gaussian beams in a turbulent atmosphere using Rytov method.
To destroy the boosting missile, the ABL fires its Chemical Oxygen Iodine Laser (COIL) using the adaptive optics system to compensate for atmospheric turbulence, heating up the pressurized missile until it is disabled, (8) Its speed-of-light delivery of the laser allows ABL to be effective from long distances, permitting the ABL to fly in friendly airspace and still engage missiles hundreds of kilometers away.
Throw into the mixture the fact that sky objects trundle from horizon to horizon at 15 degrees an hour, and all the problems of atmospheric turbulence, and it's small wonder that most folk just give up after a few experiments.
SoDAR systems are used to measure wind speed and wind direction at various heights above ground level through the scattering of sound waves by atmospheric turbulence.

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