Measurement of lidar constant by means of Raman method

YAN Shun-sheng; ZHANG Jing-dong; HUANG Hong-yun; HU Li-chun; Bian Jing

doi:10.3969/j.issn.1001-3806.2010.02.021

The characteristic that the return signals of a Raman lidar are not affected by aerosol backscattering can be used to calibrate lidar constant. At homogenous horizontal atmosphere, the lidar constant can be calculated with knowledge about Raman diffusion back scattering cross section and number density of N2. Numerical simulation was carried out and 4.688% relative error of the lidar constant was obtained. Theoretical derivation and numerical simulation indicate the feasibility of the method. The achievement of lidar constant will offer convenience for retrieve of aerosol in lidar equation and evaluation of a lidar system.

Measurement of lidar constant by means of Raman method

1. Public Basic Course Teaching Department, Tangshan College, Tangshan 063000, China;

2. Anhui Institute of Optics Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

Received Date: 2008-12-15

Accepted Date: 2009-02-26

Available Online: 2010-03-25

Abstract: The characteristic that the return signals of a Raman lidar are not affected by aerosol backscattering can be used to calibrate lidar constant. At homogenous horizontal atmosphere, the lidar constant can be calculated with knowledge about Raman diffusion back scattering cross section and number density of N2. Numerical simulation was carried out and 4.688% relative error of the lidar constant was obtained. Theoretical derivation and numerical simulation indicate the feasibility of the method. The achievement of lidar constant will offer convenience for retrieve of aerosol in lidar equation and evaluation of a lidar system.

HTML

Reference (11)

[1]	LIU H T,WANG Zh Zh,LI Ch,et al.Numerical simulation analysis for detectability of spaceborne lidars[J].Laser Technology,2008,32(6):614-615(in Chinese).
[2]	SASSEN K,CHO B S.Subvisible-thin cirrus lidar dataset for satellite verification and climatological research[J].Journal of Applied Meteorology,1992,31(11):1275-1285.
[3]	HU Sh X,WANG Zh Zh,XU Q Sh,et al.Studies on methods for aerosol optical depth measurements by lidar[J].Chinese Journal of Quantum Electronics,2006,23(3):305-310(in Chinese).
[4]	ZHANG J B,HU H L.Lidar calibration:a new method[J].Appl Opt,1997,36(6):1235-1238.
[5]	FREDERRICK G F,BENJAMAN M H,JOHN A R.Determination of aerosol height distribution by lidar[J].Applied Meteorology,1972,11(2):482-489.
[6]	KLETT J.Stable analytical inversion solution for processing lidar returns[J].Appl Opt,1981,20(5):211-220.
[7]	FERNALD F G.Analysis of atmospheric lidar observations,some comments[J].Appl Opt,1984,23(9):652-653.
[8]	INABA H,KOBAYASI T.Laser-Raman radar--laser-Raman scattering methods for remote detection and analysis of atmospheric pollution[J].Optical and Quantum Electronics,1972,4(2):101-123.
[9]	SUN J Q.Laser atmosphere detect[M].Beijing:Science Press,1986:88-89(in Chinese).
[10]	SUN J Q.Laser atmosphere detect[M].Beijing:Science Press,1986:26-27(in Chinese).
[11]	SUN J Q.Laser atmosphere detect[M].Beijing:Science Press,1986:7-8(in Chinese).

Measurement of lidar constant by means of Raman method

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views