Scattering properties of polluted dust in 1.6-μm wavelength

doi:10.1088/1674-1056/23/10/104203

›› 2014, Vol. 23 ›› Issue (10): 104203-104203.doi: 10.1088/1674-1056/23/10/104203

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Scattering properties of polluted dust in 1.6-μm wavelength

范萌^{a b}, 陈良富^a, 李莘莘^{a c}, 陶金花^a, 苏林^a, 邹铭敏^a

a State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences. Beijing 100101, China;
b University of Chinese Academy of Sciences, Beijing 100049, China;
c Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA

收稿日期:2013-10-06 修回日期:2014-02-18 出版日期:2014-10-15 发布日期:2014-10-15
基金资助:
Project supported by the Key Program of the National Natural Science Foundation of China (Grant No. 41130528) and the National Basic Research Program of China (Grant No. 2010CB950801).

Scattering properties of polluted dust in 1.6-μm wavelength

Fan Meng (范萌)^{a b}, Chen Liang-Fu (陈良富)^a, Li Shen-Shen (李莘莘)^{a c}, Tao Jin-Hua (陶金花)^a, Su Lin (苏林)^a, Zou Ming-Min (邹铭敏)^a

a State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences. Beijing 100101, China;
b University of Chinese Academy of Sciences, Beijing 100049, China;
c Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA

Received:2013-10-06 Revised:2014-02-18 Online:2014-10-15 Published:2014-10-15
Contact: Chen Liang-Fu E-mail:chenlf@radi.ac.cn
About author:42.25.Fx; 42.68.-w; 92.60.Mt
Supported by:
Project supported by the Key Program of the National Natural Science Foundation of China (Grant No. 41130528) and the National Basic Research Program of China (Grant No. 2010CB950801).

摘要/Abstract

摘要： Three typical polluted dust particles (i.e., single coated dust, two-sphere/spheroid system, and coated dust with aggregate) including internal and semi-external mixtures are modeled, and their scattering properties at 1.6-μm wavelength are calculated by using the generalized multi-sphere Mie-solution (GMM) method. We investigate the influences of particle size, morphology, and chemical composition on the scattering parameters of polluted dust particles. The analysis results demonstrate that the single scattering albedo of coated dust is much smaller than that of pure dust, especially for the spheroidal black carbon (BC) coated dust. When a dust particle semi-mixes with another aerosol particle to form a two-sphere/spheroid system, its scattering properties are much more sensitive to the size and species of monomers than the monomer shape. If an aggregated BC attaches to the coated dust, the scattering properties of whole particle mainly depend on the host particle (coated dust).

关键词: scattering properties, polluted dust, generalized multi-sphere Mie solution method

Abstract: Three typical polluted dust particles (i.e., single coated dust, two-sphere/spheroid system, and coated dust with aggregate) including internal and semi-external mixtures are modeled, and their scattering properties at 1.6-μm wavelength are calculated by using the generalized multi-sphere Mie-solution (GMM) method. We investigate the influences of particle size, morphology, and chemical composition on the scattering parameters of polluted dust particles. The analysis results demonstrate that the single scattering albedo of coated dust is much smaller than that of pure dust, especially for the spheroidal black carbon (BC) coated dust. When a dust particle semi-mixes with another aerosol particle to form a two-sphere/spheroid system, its scattering properties are much more sensitive to the size and species of monomers than the monomer shape. If an aggregated BC attaches to the coated dust, the scattering properties of whole particle mainly depend on the host particle (coated dust).

Key words: scattering properties, polluted dust, generalized multi-sphere Mie solution method

中图分类号: (Diffraction and scattering)

42.25.Fx

42.68.-w (Atmospheric and ocean optics) 92.60.Mt (Particles and aerosols)

范萌, 陈良富, 李莘莘, 陶金花, 苏林, 邹铭敏. Scattering properties of polluted dust in 1.6-μm wavelength[J]. , 2014, 23(10): 104203-104203.

Fan Meng (范萌), Chen Liang-Fu (陈良富), Li Shen-Shen (李莘莘), Tao Jin-Hua (陶金花), Su Lin (苏林), Zou Ming-Min (邹铭敏). Scattering properties of polluted dust in 1.6-μm wavelength[J]. Chin. Phys. B, 2014, 23(10): 104203-104203.

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Scattering properties of polluted dust in 1.6-μm wavelength

Scattering properties of polluted dust in 1.6-μm wavelength

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