不同下垫面水平大气相干长度的测量与分析

大气与环境光学学报 ›› 2014, Vol. 9 ›› Issue (3): 173-178.

不同下垫面水平大气相干长度的测量与分析

黄克涛1,2，吴毅1，侯再红1，靖旭1，于龙昆1,2，崔利果1,2

(1. 中国科学院安徽光学精密机械研究所中国科学院大气成分与光学重点实验室，安徽合肥 230031；
2. 中国科学院大学，北京 100049)

收稿日期:2013-12-06 修回日期:2013-12-16 出版日期:2014-05-28 发布日期:2014-05-21
通讯作者: 黄克涛(1989-)，男，安徽六安人，研究生，主要从事激光大气探测研究。 E-mail:kthuang@mail.ustc.edu.cn
作者简介:黄克涛(1989-)，男，安徽六安人，研究生，主要从事激光大气探测研究。
基金资助:
国家863计划资助项目(A825021)资助

Measurement and Analysis of Horizontal Atmospheric Coherence Length on Different Underlying Surface

HUANG Ke-tao1,2, WU Yi1, HOU Zai-hong1, JING Xu1, YU Long-kun1,2, CUI Li-guo1,2

(1. Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Anhui Hefei 230031；
2. University of Chinese Academy of Sciences, Beijing 100049, China)

Received:2013-12-06 Revised:2013-12-16 Published:2014-05-28 Online:2014-05-21

摘要/Abstract

摘要：

与温度脉动仪测量结果对比验证了大气相干长度仪测量结果的可靠性，分析了两种仪器测量结果存在的差异及原因。对比大气相干长度仪测量的博贺海面、海边及合肥水平大气相干长度得出如下结论：全天海面水平大气相干长度最大，海边次之，合肥最小；合肥水平大气相干长度具有典型的日变化特征，清晨、傍晚转换时刻变化范围约4~10 cm、4~15 cm；海边水平大气相干长度清晨转换时刻变化范围约8~15 cm，特征与合肥相似，傍晚转换时刻后保持在12 cm左右；海面水平大气相干长度清晨转换时刻变化范围约9~12 cm，傍晚转换时刻约从15 cm迅速增至50 cm并保持2 h后迅速减至28 cm。结合不同下垫面的特点、天气状况及海陆风转换造成的影响，对上述实验结果进行了初步分析。

关键词: 大气光学, 大气相干长度, 下垫面, 转换时刻

Abstract:

Contrast to the measurement results of thermometer device, the accuracy of the measurement results by atmospheric coherence length monitor was certified. The deviations of the measurement results and the reasons for them were analyzed. Horizontal atmospheric coherence length at Bohe sea level and seaside and in Hefei had been measured by atmospheric coherence length monitor. The results show that horizontal atmospheric coherence length at sea is greater than that at seaside and it is the smallest in Hefei. Horizontal atmospheric coherence length in Hefei has typical diurnal variation and changes about 4~10 cm at morning transition moment and 4~15 cm at evening transition moment. Horizontal atmospheric coherence length at seaside changes about 8~15 cm and its feature is the same as Hefei and it keeps about 12 cm after evening transition moment. Horizontal atmospheric coherence length at sea changes about 9~12 cm at morning transition moment while it increases rapidly from 15 cm to 50 cm and then decreases sharply to 28 cm after about 2 h at evening transition moment. Taking the characteristics of different underlying surface, weather condition and the influence of the conversion between sea wind and land wind into consideration, the reasons of these experimental results are given.

Key words: atmospheric optics, atmospheric coherence length, underlying surface, transition moment

中图分类号:

P427.1

黄克涛吴毅侯再红靖旭于龙昆崔利果. 不同下垫面水平大气相干长度的测量与分析[J]. 大气与环境光学学报, 2014, 9(3): 173-178.

HUANG Ke-Chao, WU Yi, HOU Zai-Gong, JING Xu, YU Long-Hun, CUI Li-Guo. Measurement and Analysis of Horizontal Atmospheric Coherence Length on Different Underlying Surface[J]. Journal of Atmospheric and Environmental Optics, 2014, 9(3): 173-178.

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