Use of a block-iterative algorithm for retrieving aerosol integral size distributions from sun spectrophotometry data

A modified method is presented for retrieving aerosol integral size distributions in solar photometry problems. The presence of fine and coarse fractions of particles in the atmosphere is assumed. The initial matrix of the system is subdivided into four blocks in accordance with two particle fractio...

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Vydané v:Atmospheric and oceanic optics Ročník 23; číslo 5; s. 375 - 380
Hlavní autori: Veretennikov, V. V., Men’shchikova, S. S.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Dordrecht SP MAIK Nauka/Interperiodica 01.10.2010
Predmet:
Aerosols
Hydrosoles
Lasers
Optical Devices
Optics
Optics of Clusters
Photonics
Physics
Physics and Astronomy
Geometrical Cross Section
Aerosol Optical Depth
Inverse Problem Solution
Microstructure Parameter
Radiation Extinction
ISSN:1024-8560, 2070-0393
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Popis
Shrnutí:A modified method is presented for retrieving aerosol integral size distributions in solar photometry problems. The presence of fine and coarse fractions of particles in the atmosphere is assumed. The initial matrix of the system is subdivided into four blocks in accordance with two particle fractions and two spectral regions, i.e., short and long wavelengths. Each of the two fractional integral size distributions is retrieved separately using a block-iterative inversion algorithm with a further iterative correction. The capabilities of the suggested method are numerically estimated in comparison with the results of the inversion for the entire particle ensemble.
ISSN:1024-8560
2070-0393
DOI:10.1134/S1024856010050064