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 ?
ROSENSTEINER, An efficient solution to the atmospheric turbulence tomography problem using Kaczmarz iteration, Inverse Problems, 28 (2012), Art.
Djordjevic, "500 Gb/s free-space optical transmission over strong atmospheric turbulence channels," Optics Letters, vol.
In the next section, it will be used to simulate the transmission of optical vortex in atmospheric turbulence. In simulation, the atmospheric refractive index constant of [C.sup.2.sub.n] = [10.sup.-14] is used.
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.
Leader investigated the normalized intensity variance (a parameter to measure the strength of intensity fluctuation) of the optical beam which simulates laser reflectance from a rough surface with arbitrary height deviation in atmospheric turbulence [13].
* 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.
Atmospheric turbulence causes fluctuations in the irradiance of the transmitted optical beam, which is known as atmospheric scintillation, severely degrading the link performance [2].
For decades, scientists have been studying and modeling atmospheric turbulence to obtain a better understanding of its properties and behavior.
Adaptive optics (abbreviated as AO) is developed in order to overcome the interference of atmospheric turbulence on the telescope imaging, and it can measure and correct the optical wavefront phase of atmospheric turbulence in real-time.
They cover statistics of CDL echo signal, statistics of lidar estimates of the radial velocity and Doppler spectrum width, measuring wind velocity and direction, estimating atmospheric turbulence parameters from wind measurements, and lidar investigations of aircraft wake vortices.

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