A new stochastic algorithm for inversion of dust aerosol size distribution

Li Wang; Feng Li; Ma-ying Yang

doi:10.1117/12.2191817

7 August 2015 A new stochastic algorithm for inversion of dust aerosol size distribution

Li Wang, Feng Li, Ma-ying Yang

Proceedings Volume 9623, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 96230T (2015) https://doi.org/10.1117/12.2191817
Event: International Conference on Optical Instruments and Technology 2015, 2015, Beijing, China

Abstract

Dust aerosol size distribution is an important source of information about atmospheric aerosols, and it can be determined from multiwavelength extinction measurements. This paper describes a stochastic inverse technique based on artificial bee colony (ABC) algorithm to invert the dust aerosol size distribution by light extinction method. The direct problems for the size distribution of water drop and dust particle, which are the main elements of atmospheric aerosols, are solved by the Mie theory and the Lambert-Beer Law in multispectral region. And then, the parameters of three widely used functions, i.e. the log normal distribution (L-N), the Junge distribution (J-J), and the normal distribution (N-N), which can provide the most useful representation of aerosol size distributions, are inversed by the ABC algorithm in the dependent model. Numerical results show that the ABC algorithm can be successfully applied to recover the aerosol size distribution with high feasibility and reliability even in the presence of random noise.

Citation Download Citation

Li Wang, Feng Li, and Ma-ying Yang "A new stochastic algorithm for inversion of dust aerosol size distribution", Proc. SPIE 9623, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 96230T (7 August 2015); https://doi.org/10.1117/12.2191817

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