利用气象要素估算近地面光学湍流

本文根据近地面层湍流相似理论分析了我国东海海面和合肥市西郊一水库上方及水库附近地面上的气象参数与光学湍流参数-折射率结构常数C∧2n，结果分析表明，折射率结构常数C∧2n和大气稳定度很好地满足经验关系，由此可以得到：在陆地和海域上可以利用气象要素对折射率结构常数进行估算。

Estimation Optical Turbulence by Meteorology Factors

Turbulence has long been recognized as one of the must significant effects on the performance of optical systems operating in the presence of atmosphere. Of all the turbulent parameters, the most important and used most frequently is refractivity structure constant Cn2. Because of the relation between the refractivity and temperature, Cn2 can be calculated from he temperature structure constants CT2. But CT2 is not easy to measure. In the papers the meteorology data from the East China Sea and the reservoir on the west suburb of Hefei city and its vicinal land are analyzed. According to Monin-Obukhov similarity theory and semiempirical relationships of Wyngaard, the temperature structure constants are obtained. and they give well agreement with CT2 measured directly.