The refractive index fluctuation of atmosphere are mainly caused by variations in temperature and humidity.
大气折射率起伏主要是由温度和湿度起伏引起的。
Random fluctuation of turbulence brings random fluctuation of refractive index and makes atmosphere become a random fluctuation medium, which destroys the coherence of light-wave.
大气湍流对光波传播的影响主要是由于大气随机起伏的湍流引起折射率的随机起伏，破坏了光波的相干性。
The experiment was used to validate that whether the back-scattering angle-of-arrival fluctuation can describe the atmosphere structure of refractive index Cn2 by method of contract.
该实验通过对比的方法验证后向散射的到达角起伏是否可以反映大气湍流强度。
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