中国物理B ›› 2004, Vol. 13 ›› Issue (3): 409-412.doi: 10.1088/1009-1963/13/3/027

• 8000 CROSSDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Iteration method for the inversion of simulated multiwavelength lidar signals to determine aerosol size distribution

陶宗明, 张寅超, 刘小勤, 谭锟, 邵石生, 胡欢陵, 张改霞, 吕勇辉   

  1. Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
  • 收稿日期:2003-03-04 修回日期:2003-09-26 出版日期:2005-07-06 发布日期:2005-07-06

Iteration method for the inversion of simulated multiwavelength lidar signals to determine aerosol size distribution

Tao Zong-Ming (陶宗明), Zhang Yin-Chao (张寅超), Liu Xiao-Qin (刘小勤), Tan Kun (谭锟), Shao Shi-Sheng (邵石生), Hu Huan-Ling (胡欢陵), Zhang Gai-Xia (张改霞), Lü Yong-Hui (吕勇辉)   

  1. Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
  • Received:2003-03-04 Revised:2003-09-26 Online:2005-07-06 Published:2005-07-06

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摘要： A new method is proposed to derive the size distribution of aerosol from the simulated multiwavelength lidar extinction coefficients. The basis for this iteration is to consider the extinction efficiency factor of particles as a set of weighting function covering the entire radius region of a distribution. The weighting functions are calculated exactly from Mie theory. This method extends the inversion region by subtracting some extinction coefficient. The radius range of simulated size distribution is 0.1－10.0μm, the inversion radius range is 0.1－2.0μm, but the inverted size distributions are in good agreement with the simulated one.

Abstract: A new method is proposed to derive the size distribution of aerosol from the simulated multiwavelength lidar extinction coefficients. The basis for this iteration is to consider the extinction efficiency factor of particles as a set of weighting function covering the entire radius region of a distribution. The weighting functions are calculated exactly from Mie theory. This method extends the inversion region by subtracting some extinction coefficient. The radius range of simulated size distribution is 0.1－10.0μm, the inversion radius range is 0.1－2.0μm, but the inverted size distributions are in good agreement with the simulated one.

Key words: inversion, iteration, extinction coefficient, size distribution

中图分类号:  (Aerosols and foams)

  • 82.70.Rr
42.79.Qx (Range finders, remote sensing devices; laser Doppler velocimeters, SAR, And LIDAR) 02.60.-x (Numerical approximation and analysis)