【摘要】 在塔塔尔斯基理论模式框架下 ,使用全国 81个气象站 1 986～ 1 995年 1 0年探空资料计算了各测站海拔高度上的Fried参数r0 。统计结果表明 ,r0 的年平均值的分布与相应地形分布基本一致 ,大气湍流的差异对局部地区的r0 有着明显的影响。月平均r0 的高值中心区存在明显的季节变化 ,可能与相应副热带急流的季节变化有关。更多还原

【Abstract】 Based on the standard meteorological radiosonde data in the years of 1986 to 1995, the Fried parameter r 0 is calculated by means of the theoretical model of Tatarski over 81 meteorological stations in China. The geographical distribution of the annual mean r 0 at ground is in accordance with the topographical distribution basically. The effect of the variation of atmospheric turbulence on the local distribution of r 0 is apparent. The locations of the high monthly mean r 0 centers are different in different seasons and all these differences are related to the seasonal behavior of the subtropical jet stream possibly.更多还原