双向大气相干长度测量获取湍流模式及日变化分析  

Turbulence Models and Daily Variations Obtained by Bidirectional Atmospheric Coherent Length Measurements

作　　者：仇陈祥 侯再红 靖旭 何枫 张巳龙 Qiu Chenxiang;Hou Zaihong;Jing Xu;He Feng;Zhang Silong(Key Laboratory of Atmospheric Optics,Anhui Institute of Optics and Fine Mechanics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,Anhui,China;Science Island Branch of Graduate School,University of Science and Technology of China,Hefei 230026,Anhui,China;Anhui Laboratory of Advanced Laser Technology,Hefei 230037,Anhui,China)

机构地区：[1]中国科学院合肥物质科学研究院安徽光学精密机械研究所中国科学院大气光学重点实验室,安徽合肥230031 [2]中国科学技术大学研究生院科学岛分院,安徽合肥230026 [3]先进激光技术安徽省实验室,安徽合肥230037

出　　处：《光学学报》2022年第9期39-46,共8页Acta Optica Sinica

摘　　要：大气相干长度是定量描述大气湍流强度的重要参数,提出一种通过对同一斜程路径进行双向大气相干长度测量、从而建立实时的湍流强度随高度的分布模式的方法,并进行了多日全天观测实验以验证所提方法。通过不同天气条件下得到的测量路径湍流强度时空分布的相互比较,以及对多日大气相干长度测量比值的统计分析,初步验证了所提方法的准确性。The atmospheric coherence length is an important parameter for quantitatively describing the intensity of atmospheric turbulence.In this paper,a real-time turbulence intensity distribution mode varying with height can be established by bidirectionally measuring the atmospheric coherence length along the same slope path,and full-day observation experiments during several days are conducted to verify this method.The accuracy of this method is preliminarily verified by comparing the spatiotemporal distributions of turbulence intensity measured under different weather conditions and analyzing the ratio of atmospheric coherence length measured in multiple days.

关 键 词：大气光学 大气湍流 大气相干长度 大气折射率结构常数 模式 分布特性 

分 类 号：P412.1[天文地球—大气科学及气象学]