Monte-Carlo algorithms for defining the components of the aerosol scattering matrix

Anna S. Korda, Sergey A. Ukhinov

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

Аннотация

The variations of the sky brightness are defined mainly by the volatility of the aerosol part of the atmosphere, which possesses strong scattering ability. Theoretical study of the radiation transfer problems is impossible without knowing it's optical parameters. In this paper the problem of reconstructing the aerosol scattering matrix by using observations of polarized radiation in the solar almucantar, i.e., in various directions that make the same angle with the zenith as the line of sight to the Sun, is considered. Several iterative algorithms for estimation of the scattering indicatrix are constructed in [1]-[5]. In these algorithms the indicatrix is successively refining by mathematical modeling based on the information of the angle distribution of the radiation intensity on the underlying surface and under the assumption that the contribution of the single-scattered radiation is rather large. In this work the predictor-corrector modification of the method is suggested, it allows to find more precise approximation of the scattering indicatrix and of two other scattering matrix elements responsible for the polarization of the radiation. In order to numerically substantiate the convergence of these methods, an algorithm of Jacobi matrices calculation for the iteration operators of the methods was developed, and calculations were carried out for various parameters of the atmosphere. Also a study of the influence of measurement errors on the reconstruction of the scattering matrix was carried out. Test calculations showed the stability of algorithms to errors in the initial data.

Язык оригиналаанглийский
Название основной публикации24th International Symposium on Atmospheric and Ocean Optics
Подзаголовок основной публикацииAtmospheric Physics
РедакторыOleg A. Romanovskii, Gennadii G. Matvienko
ИздательSPIE-INT SOC OPTICAL ENGINEERING
Число страниц10
ISBN (электронное издание)9781510622913
DOI
СостояниеОпубликовано - 1 янв 2018
Событие24th International Symposium on Atmospheric and Ocean Optics - Atmospheric Physics - Tomsk, Российская Федерация
Продолжительность: 2 июл 20185 июл 2018

Серия публикаций

НазваниеProceedings of SPIE - The International Society for Optical Engineering
Том10833
ISSN (печатное издание)0277-786X
ISSN (электронное издание)1996-756X

Конференция

Конференция24th International Symposium on Atmospheric and Ocean Optics - Atmospheric Physics
СтранаРоссийская Федерация
ГородTomsk
Период02.07.201805.07.2018

Цитировать

Korda, A. S., & Ukhinov, S. A. (2018). Monte-Carlo algorithms for defining the components of the aerosol scattering matrix. В O. A. Romanovskii, & G. G. Matvienko (Ред.), 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics [1083324] (Proceedings of SPIE - The International Society for Optical Engineering; Том 10833). SPIE-INT SOC OPTICAL ENGINEERING. https://doi.org/10.1117/12.2504461