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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一折射率结构常数C2n。结果分析表明,折射率结构常数C2n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。

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 C2n. Because of the relation between the refractivity and temperature, C2n can be calculated from he temperature structure constants C2T. But C2T is not easy to measure. In the paper, 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 C2T measured directly.

参考文献

[1] Wyngaard J C, Izumi Y, Collins Jr. Behavior of the refractive-index-structure parameter near the ground [J]. J. Opt. Soc. Am., 1971, 61(12), 1646~1650
[2] 周秀骥,陶善昌,姚克亚.高等大气物理学(上册)[M].北京:气象出版社,1991.226~238
[3] Manju Mohan, Siddiqui T A. Applied modeling of structure fluxes under different stability regimes [J]. Journal of Applied Meteorology, 1998, 37(10), 1055~1067
[4] Friehe C A. Estimation of the refractive-index temperature structure parameter over the ocean [J]. Applied Optics,1977, 16(2), 334~340
[5] Edson J B, Fairalli C W. Similarity relationships in the marine atmospheric surface layer for terms in the TKE and scalar variance budgets [J]. J. Atmos. Sci., 1998, 55(13), 2311~2328
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