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Optical turbulence path integration: methodology

机译:光学湍流路径集成:方法

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Presently the propagation models used to assess ABL performance employ an onionskin atmosphere. Onionskin atomspheres ignore the profound horizontal intermittency in C_n~2 foun d in experiment. The problems assoicated with modeling optical turbulence over shallow slant paths using balloon and aerothermal point measurements are presneted. We describe a method developed by the authors, which inte4grates the horizontal intermittency evident in the aerothermal data with the balloon profiles. This methodology takes randomly drawn segments of the aerothermal data to provide the intermittency along a smoothed balloon profile. An Independent and Idnetically Distributede (IID)~1 process describes this methodology. To date all methods known by the authors utilize an IID process to account for intermittency.~2. However, IID processes fail to fully appreciate the information contained in a continuous stream of aerothermal data. We present a methodology that utilizes time expected integrated turbulence levels is broader than those calculated previously. This suggests that in reality there will be a greater probability that a beam will experiience sustained periods of extreme turbulence along the path, strong or weak, than would be predicted using an IID model.
机译:目前,用于评估ABL性能的传播模型采用洋葱金氛围。 Onionskin Atomshees在实验中忽略了C_N〜2 Foun D中的深刻水平间歇性。使用气球和空气热点测量的浅倾斜路径模拟光学湍流模拟光学湍流的问题进行了预先实现。我们描述了作者开发的方法,该方法在与球囊型材中的空气管数据中的水平间间隔内明显。该方法采用随机绘制的空气热数据段,以提供沿着平滑的球囊型材的间歇性。独立且innetnically分布(IID)〜1过程描述了该方法。迄今为止,作者所知道的所有方法都利用IID进程来占间歇性。〜2。然而,IID进程未能充分了解连续的空气热数据流中包含的信息。我们提出了一种利用时间预期集成湍流水平的方法,比先前计算的时间更广泛。这表明,实际上,将有更大的概率,梁将沿着路径,强或弱的路径,强或弱,而不是使用IID模型来经历持续的极端湍流的概率。

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