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Chinese Physics, 2007, Vol. 16(8): 2486-2491    DOI: 10.1088/1009-1963/16/8/055
GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS Prev  

Analysis of influence of atmosphere extinction to Raman lidar monitoring CO2 concentration profile

Zhao Pei-Tao(赵培涛)a)b)†, Zhang Yin-Chao(张寅超)c), Wang Lian(王莲)d), Zhao Yue-Feng(赵曰峰)a)b), Su Jia(苏嘉)a)b), Fang Xin(方欣)a)b), Cao Kai-Fa(曹开法)a)b), Xie Jun(谢军)a), and Du Xiao-Yong(杜小勇)a)b)
a Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China; b Graduate School of the Chinese Academy of Sciences, Beijing 100039, China; c Department of Optical Engineering, Laboratory of Photoelectric Imaging and Information Engineering, Beijing Institute of Technology, Beijing 100081, China; d Department of Chemical Physics, University of Science and Technology of China Hefei 230026, China
Abstract  Lidar (Light detection and ranging) system monitoring of the atmosphere is a novel and powerful technique tool. The Raman lidar is well established today as a leading research tool in the study of numerous important areas in the atmospheric sciences. In this paper, the principle of Raman lidar technique measurement CO2 concentration profile is presented and the errors caused by molecular and aerosol extinction for CO2 concentration profile measurement with Raman lidar are also presented. The standard atmosphere extinction profile and `real-time' Hefei area extinction profile are used to conduct correction and the corresponding results are yielded. Simulation results with standard atmosphere mode correction indicate that the errors caused by molecule and aerosol extinction should be counted for the reason that they could reach about 8 ppm and 5 ppm respectively. The relative error caused by Hefei area extinction correction could reach about 6%. The errors caused by the two components extinction influence could produce significant changes for CO2 concentration profile and need to be counted in data processing which could improve the measurement accuracies.
Keywords:  Raman lidar      atmospheric CO2      aerosol extinction      molecule extinction  
Received:  20 November 2006      Revised:  25 December 2006      Accepted manuscript online: 
PACS:  93.85.-q (Instruments and techniques for geophysical research: Exploration geophysics)  
  42.68.Jg (Effects of aerosols?)  
  42.68.Wt (Remote sensing; LIDAR and adaptive systems)  
  92.60.Mt (Particles and aerosols)  
  92.60.hf (Tropospheric composition and chemistry, constituent transport and chemistry)  
  93.30.Db (Asia)  
Fund: Project supported by the National High Technology Research and Development Program of China (Grant No~2002AA135030).

Cite this article: 

Zhao Pei-Tao(赵培涛), Zhang Yin-Chao(张寅超), Wang Lian(王莲), Zhao Yue-Feng(赵曰峰), Su Jia(苏嘉), Fang Xin(方欣), Cao Kai-Fa(曹开法), Xie Jun(谢军), and Du Xiao-Yong(杜小勇) Analysis of influence of atmosphere extinction to Raman lidar monitoring CO2 concentration profile 2007 Chinese Physics 16 2486

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