戈壁地区折射率结构常数高度分布的统计特性

发布时间：2018-05-07 09:02

  本文选题：折射率结构常数 + 温度脉动仪　； 参考：《强激光与粒子束》2016年02期

【摘要】：通过以系留气球和探空气球为平台的方式,搭载温度脉动仪在戈壁地区对大气折射率结构常数开展长期测量。对获取的实验数据开展统计分析,探讨了在白天与夜间折射率结构常数的平均情况、高度分布、偏度与峰度、季节的强弱特性等四个方面的内容,结果表明:在测量地区,随高度分布的大气折射率结构常数在白天和夜间的算术平均值和对数平均值的比值会有较大的差异,并且白天和夜间的对数平均值和标准差系数随高度分布各有其特点,表现在随高度整体减小的同时会有起伏出现,尤其是夜间;白天和夜间的偏度与峰度主要表现出右偏和尖峰特性,在高度分布上有所不同;季节变化对湍流的强弱分布产生明显影响,集中体现在中性湍流和弱湍流分布情况随高度发生交互变化。
[Abstract]:The atmospheric refractive index structure constant is measured in the Gobi area by means of the mooring balloon and the sounding balloon as the platform, and the temperature pulsator is used to measure the atmospheric refractive index structure constant in the Gobi area for a long time. The statistical analysis of the obtained experimental data is carried out, and the four aspects of the refractive index structure constant in the daytime and at night, the distribution of height, the skewness and kurtosis, the intensity and weakness of the season, are discussed. The results show that: in the measured area, The ratio of arithmetic mean and logarithmic average of atmospheric refractive index structure constant with height distribution will be different between day and night, and the logarithmic mean value and standard deviation coefficient of day and night have their own characteristics with height distribution. The deviation and kurtosis of day and night mainly show the characteristics of right deviation and peak, which are different in height distribution. Seasonal variation has obvious influence on the intensity and weak distribution of turbulence, mainly reflected in the interaction between the distribution of neutral turbulence and weak turbulence with height.
【作者单位】： 中国科学院安徽光学精密机械研究所大气光学研究中心;中国科学院大学;西北核技术研究所;西安交通大学电子与信息工程学院;
【基金】：国家自然科学基金项目(41475001) 中国科学院知识创新方向性项目(KJCX2-EW-N07)
【分类号】：O357.5
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本文编号：1856302