大气与环境光学学报 ›› 2025, Vol. 20 ›› Issue (5): 559-570.doi: 10.3969/j.issn.1673-6141.2025.05.001

• 大气光学 •    下一篇

探空气球尾流对光学湍流测量的影响(封面文章)

王志远 1,2,3, 吴晓庆 2,3,4*, 杨期科 2,3,4, 胡晓丹 2,3,4, 郭一鸣   

  1. 1 安徽大学物质科学与信息技术研究院, 安徽 合肥 230601; 2 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; 3 先进激光技术安徽省实验室, 安徽 合肥 230037; 4 中国科学技术大学研究生院科学岛分院, 安徽 合肥 230026
  • 收稿日期:2022-07-29 修回日期:2022-10-15 出版日期:2025-09-28 发布日期:2025-09-24
  • 通讯作者: E-mail:xqwu@aiofm.ac.cn E-mail:xqwu@aiofm.ac.cn
  • 作者简介:王志远 (1998- ), 安徽滁州人, 硕士研究生, 主要从事大气光学湍流测量方面的研究。E-mail: WangZhiyuan@mail.ustc.edu.cn
  • 基金资助:
    国家自然科学基金 (91752103, 41576185), 中国科学院战略性先导科技专项 (A类) (XDA17010104)

Influence of sounding balloon wake on optical turbulence measurement

WANG Zhiyuan 1,2,3, WU Xiaoqing 2,3,4*, YANG Qike 2,3,4, HU Xiaodan 2,3,4, GUO Yiming 2,3,4   

  1. 1 Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China; 2 Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China; 3 Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China; 4 Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
  • Received:2022-07-29 Revised:2022-10-15 Online:2025-09-28 Published:2025-09-24
  • Contact: Xiaoqing Wu E-mail:xqwu@aiofm.ac.cn
  • Supported by:
    National Natural Science Foundation of China;Strategic Priority Research Program of Chinese Academy of Sciences

摘要: 使用球载温度脉动仪测量大气光学湍流时, 上升气球产生的尾流会对其下方载荷的测量造成影响。为分析 该影响, 本文采用一个气球悬挂两个探空仪的方式,于2021 年11 月在湖南省怀化市进行了实验测量。首先采用Barat 提出的尾流判断标准对气球下方不同位置进行了尾流评估, 对比了气球下方不同位置测量的湍流强度; 随后根据测 量的折射率结构常数, 比较了不同高度区间的相干长度和视宁度, 得到气球下方不同位置的测量偏差对比。结果表 明: 在0~6 km高度处, 30 m绳长测量结果受尾流影响明显; 在6~15 km高度处, 气球尾流因较大的风剪切而对测量 影响较小; 在15~30 km高度处虽然存在尾流影响, 但该高度层大气光学湍流强度较弱, 尾流影响对整层大气的光学 参数贡献很小。本研究对未来光学湍流的探空测量工作有着重要的参考意义。

关键词: 大气光学, 光学湍流, 探空测量, 气球尾流

Abstract: When measuring atmospheric optical turbulence with a balloon-borne micro-thermometer, the wake caued by the rising balloon will affect the measurement of the thermometer below it. In order to analyze this effect, experimental measurements were carried out in Huaihua, Hunan Province, China, in November 2021 using the method of hanging two radiosondes under a balloon. Fistly, the wake evaluation standard proposed by Barat was used to evaluate the effects of the wake at different positions under the balloon, and the turbulence intensity measured at different positions under the balloon was compared. Then, according to the measured refractive index structure constant, the coherence length and atmospheric seeing of different height were compared, and the measurement deviation comparison of different positions under the balloon was obtained. The results show that at altitudes of 0–6 km, the measurement result with a 30 m rope is significantly affected by the wake, at altitudes of 6 – 15 km, the balloon wake has little influence on the measurement due to larger wind shear, and at altitudes of 15–30 km, despite the existence of wake effects, they have little contribution to the optical parameters of the entire atmosphere due to the weak optical turbulence intensity in this altitude layer. This study has great reference significance for future sounding measurements of optical turbulence.

Key words: atmospheric optics, optic turbulence, sounding measurement, the balloon wake

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