戈壁沙漠地区边界层大气湍流强度高度分布建模

Modeling of Atmospheric Turbulence in Boundary Layer over Desert

实现了一种适合戈壁沙漠地区的边界层大气光学折射率结构常数的参数化公式方法。通过测量边界层内温度、风速和压强等相关常规气象参数，结合参数化公式可得出边界层内大气湍流强度的高度分布特性。公式计算的边界层大气湍流强度随着高度的增加总体在逐渐减小，近地面300m以内变化较小，300m以上大气湍流强度迅速减小，然后趋于缓慢变化。将边界层大气湍流强度高度分布模型计算结果与著名的Hufnagel—Valley（H—V）模型计算结果进行对比，二者具有很好的一致性。

A parameterization formula of atmospheric optical refractive index structure constant in boundary layer over desert is presented. Through measuring meteorological parameters including temperature, wind speed and pressure, the characteristics of height distribution of atmospheric turbulence strength in the boundary layer can be obtained. The calculation results of the formula show that, generally, with the height higher, the atmospheric turbulence strength is smaller. Comparison of it with the well-known Hufnagel-Valley （H-V） model results indicates that the parameterization formula of atmospheric optical refractive index structure constant can give consistent results.