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Convenient method for calibrating system constant of scanning water vapor Raman lidar

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Abstract

Lower tropospheric water vapor measurements are performed at nighttime using the mobile atmosphere monitoring lidar-2 (AML-2) which is operated by the Anhui Institute of Optics and Fine Mechanics. In this lidar system, a 354.7-nm light from a Nd:YAG laser is used as stimulating source, whose Raman shifted center wavelengths are at 386.7 and 407.5 nm for nitrogen and water vapor, respectively. We present a novel and convenient method for determining the Raman lidar calibration constant according to the scanning performance of this lidar. We are likewise able to realize the measurement of water vapor profile in the low troposphere. The error induced by the uncertainty of calibrated constants is within 7% for the Raman lidar system. Experimental results from two months of study indicate that the method of calibrating the lidar system constant is feasible, and the Raman lidar performance is stable and reliable.

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收稿日期:2009-10-27

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网络出版日期:0001-01-01

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赵培涛:Meteorological Observation Centre, China Meteorological Administration, Beijing 100081, China
张寅超:Department of Optical Engineering, Beijing Institute of Technology, Beijing 100081, China
李伟:Meteorological Observation Centre, China Meteorological Administration, Beijing 100081, China
胡顺星:Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
曹开法:Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
汪少林:Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
胡欢陵:Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

联系人作者:联系作者(peitaozhao@163.com)

备注:The authors would like to thank Professor Jun Zhou and Xiaoqing Wu for their contributions to the development of this work. In addition, we wish to thank Mr. Chengsheng Ma for providing radiosonde launch support. This research was supported by the National Natural Science Foundation of China (No. 40905016) and the Science and Technology Special Basic Research of the Ministry of Science and Technology, P. R. China(No. 2007FY110700).

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引用该论文

Peitao Zhao, Yinchao Zhang, Wei Li, Shunxing Hu, Kaifa Cao, Shaolin Wang, Huanling Hu, "Convenient method for calibrating system constant of scanning water vapor Raman lidar," Chinese Optics Letters 8(6), 541-545 (2010)

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