利用Tatarski方案估算不同环境下的光学湍流廓线

大气光学湍流的存在会严重制约光学系统的性能。为了能够降低大气湍流的影响，满足光电工程的应用，准确地估算出不同场景下的大气光学湍流廓线具有十分重要的指导意义。基于Tatarski光学湍流参数化方案和广泛应用的外尺度模式，利用探空仪测量的气象探空数据，对内陆（合肥）、海陆交界处（茂名）和远海海洋这三个不同环境下的大气光学湍流廓线进行估算。将合肥和茂名两地的估算值与实际观测的廓线进行对比验证，发现在变化趋势和量级上相近，为该模式估算远海海洋的大气光学湍流廓线提供了依据。结果表明模式能够较好地估算出不同环境下的光学湍流廓线。此外，还发现高空光学湍流的发生与风切变和温度梯度有重要关系。

Estimation of atmospheric optical turbulence profiles in different environments based on Tatarski parameterization scheme

Atmospheric optical turbulence severely restricts the performance of optical systems. In order to reduce the influence of atmospheric turbulence and meet the application of photoelectric engineering, it is very important to accurately estimate the atmospheric optical turbulence profiles in different scenes. Based on the Tatarski optical turbulence parameterization scheme and the representative outer scale models, the meteorological data measured by the sounding instrument were used to estimate optical turbulence profiles of inland area(Hefei), sea-land interface (Maoming) and open sea, respectively. The estimations were compared with the observed profiles at Hefei and Maoming. There is a good consistency both in trend and magnitude, which provides the evidence for estimating the atmospheric optical turbulence profile of open sea with this model. The results show that the model can precisely estimate the optical turbulence profiles in different environments. In addition, it is found that the occurrence of upper air optical turbulence is closely related to wind shear and temperature gradient.