Forecasting optical turbulence strength on the basis of macroscale meteorology and aerosols: models and validation
Forecasting optical turbulence strength on the basis of macroscale meteorology and aerosols: models and validation
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DOI：
10.1117/12.56059
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发表时间：
1992-02
影响因子：
1.3
通讯作者：
D. Sadot;N. Kopeika
中科院分区：
文献类型：
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作者：
D. Sadot;N. Kopeika
尽管光学湍流通常是用微气象学建模的，但这里表明，使用标准气象站测量的气象参数并在标准天气预报中预测的气象参数，也可以通过宏观气象学成功地完成这一任务。这使得根据天气预报预测C2n成为可能。开发了两种通过实验得出的模型，一种用于实际使用，另一种用于科学理解。在气象参数的大动态范围内，预测与测量的相关性约为 90% 或更高。这些测量的一个有趣的方面是统计证据表明闪烁受到气溶胶的影响，特别是在高总气溶胶横截面积的条件下。对于气溶胶对 C2n 及其测量的影响提出了各种解释。此外，还检查了模型的有效性，并在两种截然不同的气候和地表条件下进行了实验比较。在这两种情况下，预测和测量之间都存在高度相关性。
Although optical turbulence is usually modeled with micrometeorology, it is shown here that this can be done successfully too with macrometeorology using meteorological parameters measured with standard weather stations and predicted in standard weather forecasts. This makes it possible to predict C2n according to weather forecast. Two experimentally derived models are developed-one for practical use and the other for scientific understanding. Correlation of prediction with measurement is on the order of 90% or more, over large dynamic ranges of meteorological parameters. One interesting aspect of these measurements is the statistical evidence that scintillations are affected by aerosols, particularly under conditions of high total aerosol cross-sectional area. Various explanations for effects of aerosols on C2n and its measurement are suggested. In addition, validity of the models was examined, and experimental comparisons in two very different climates and surface conditions are presented. High correlation is found in both cases between prediction and measurement.