戈壁地区近地面大气折射率结构常数的统计分析
Statistical analysis of atmospheric refractive index structure constant near ground in Gobi region
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摘要: 利用温度脉动仪对2010年412月库尔勒戈壁地区近地面大气折射率结构常数进行了测量，按月对测量数据进行了对数平均。根据对数平均值对日变化特征进行了分析，并对大气湍流强弱时段进行了统计。研究结果显示：戈壁地区大气湍流在日落时段较日出时段弱；日出转换时刻，均值湍流强度在10-15 m-2/3以下，日落转换时刻，均值湍流强度在10-16 m-2/3左右； 4，6，8，9月份的近地面大气湍流强度较强，5，7，10月份居中，11，12月份较弱。Abstract: The refractive index structure constant (RISC) near the ground in Gobi region from April to December in 2010 was measured by using micro-thermal meter. The logarithmic average of measured data was calculated by the month, and then its daily variation characteristics were analyzed. Thus the times when the atmospheric turbulence was strong or weak in a day were given. In Gobi region, the atmospheric turbulence at sunset is weaker than at sunrise. At sunrise conversion time, the averaged RISC is below 10-15 m-2/3. At sunset conversion time, the averaged RISC is about 10-16 m-2/3. The atmospheric turbulence is stronger in April, June, August, and September, and weaker in November and December.
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