尚震, 谢晨波, 钟志庆, 王邦新, 王珍珠, 赵明, 谭敏, 刘东, 王英俭. 用于测量流层水汽的拉曼激光雷达[J]. 红外与激光工程, 2016, 45(12): 1211003-1211003(6). DOI: 10.3788/IRLA201645.1211003
引用本文: 尚震, 谢晨波, 钟志庆, 王邦新, 王珍珠, 赵明, 谭敏, 刘东, 王英俭. 用于测量流层水汽的拉曼激光雷达[J]. 红外与激光工程, 2016, 45(12): 1211003-1211003(6). DOI: 10.3788/IRLA201645.1211003
Shang Zhen, Xie Chenbo, Zhong Zhiqing, Wang Bangxin, Wang Zhenzhu, Zhao Ming, Tan Min, Liu Dong, Wang Yingjian. Raman lidar for measurement of tropospheric water vapor[J]. Infrared and Laser Engineering, 2016, 45(12): 1211003-1211003(6). DOI: 10.3788/IRLA201645.1211003
Citation: Shang Zhen, Xie Chenbo, Zhong Zhiqing, Wang Bangxin, Wang Zhenzhu, Zhao Ming, Tan Min, Liu Dong, Wang Yingjian. Raman lidar for measurement of tropospheric water vapor[J]. Infrared and Laser Engineering, 2016, 45(12): 1211003-1211003(6). DOI: 10.3788/IRLA201645.1211003

用于测量流层水汽的拉曼激光雷达

Raman lidar for measurement of tropospheric water vapor

  • 摘要: 水汽在大气中含量很少,但变化很大,变化范围在0.1%~4%之间,水汽绝大部分集中在对流层。随着光电探测技术的不断发展,大气衰减对光电探测造成的影响也越来越显著,其中水汽是主要影响因子之一,也是最为不确定参数。光电探测中常用红外波段,但是水汽分子浓度较大,对辐射吸收造成很大的影响。拉曼激光雷达是测量大气水汽的主要技术手段之一。介绍了自行研制的水汽测量拉曼激光雷达的总体结构和主要技术参量。测量结果显示:该激光雷达可以对夜晚8 km高度范围内以及白天边界层内的水汽进行测量。实验数据与当地探空数据进行比对,取得了较好的一致性,充分验证了该拉曼激光雷达测量水汽的有效性和可靠性。

     

    Abstract: The content of water vapor in atmosphere is very little, but it is the most active molecule in atmosphere. The volume ratio of moisture to air was about 0.1%-4% and most part water vapor concentration in the troposphere. The influences of atmospheric attenuation become more serious along with the development of the optics-electron detecting technology. The water vapor in the atmosphere was the main factor and uncertain parameter to affect atmospheric attenuation. Infradred wavelengths was commonly used in photoelectric detection, but water vapor makes great effect on the radiation absorption due to its high concentration. Raman lidar has become the useful advantaged tools to measure water vapor. The system structure and specifications of Raman lidar developed by introduced. The measurement results show that this lidar can take measurements of water vapor over 8 km height at night and water vapor in boundary layer in day time as well as the tropospheric aerosol in day and night continuously. The obtained results are better consistent with radiosonde data in terms of the water vapor, which assures the reliability and availability of the Raman lidar for water vapor observation.

     

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