Retrieval of the aerosol microstructure parameters from sun photometer data measured in a limited spectral range

V. V. Veretennikov; S. S. Menshchikova

doi:10.1117/12.2205861

19 November 2015 Retrieval of the aerosol microstructure parameters from sun photometer data measured in a limited spectral range

V. V. Veretennikov, S. S. Menshchikova

Author Affiliations +

Proceedings Volume 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics; 96802H (2015) https://doi.org/10.1117/12.2205861
Event: XXI International Symposium Atmospheric and Ocean Optics. Atmospheric Physics, 2015, Tomsk, Russian Federation

Abstract

The influence of the upper limit λ_max of the spectral range in which the atmospheric transmission is measured on the results of retrieval of the aerosol microstructure parameters when solving the inverse problem of sun photometry from the data of numerical modeling and field experiments is investigated. In the numerical experiment the aerosol model comprising fine submicron (f) and coarsely dispersed (c) particle fractions is used. Here λ_max is chosen from the range 1.052-3.973 μm. The method of integral distributions is used to solve the inverse problem. It is demonstrated that the limited spectral range causes underestimation of the contribution of large particles to aerosol distributions. In particular, at λ_max = 1.246 μm, losses of the retrieved concentration of particles of the c fraction against the background of the decreased (to 18 % at λ = 1.246 μm) volume aerosol concentration can reach 42 %.

Citation Download Citation

V. V. Veretennikov and S. S. Menshchikova "Retrieval of the aerosol microstructure parameters from sun photometer data measured in a limited spectral range", Proc. SPIE 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics, 96802H (19 November 2015); https://doi.org/10.1117/12.2205861

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