{"title":"用辐射传递方程的数值解模拟黄昏天空亮度","authors":"Yu.E. Belikov","doi":"10.1016/0021-9169(95)00175-1","DOIUrl":null,"url":null,"abstract":"<div><p>A model of solar light scattering in the terrestrial spherical atmosphere is developed on the basis of a numerical solution of the radiation transfer equation. It allows us to model the twilight sky brightness. This brightness for the range of solar zenith angles of 92–106 degrees and wavelength 530 tun has been compared with the experimental data and with other calculated results. Modelling has been carried out for standard altitude distributions of the molecular number density and ozone absorption coefficient and for the aerosol model of Toon and Pollack (1976). The different layers' contribution and the contribution of different orders of scattering from'some altitudes to the zenith intensity have been obtained. The role of multiple scattering in the twilight sky brightness and a hypothesis on the high turbidity of the upper atmosphere are discussed.</p></div>","PeriodicalId":100754,"journal":{"name":"Journal of Atmospheric and Terrestrial Physics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1996-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0021-9169(95)00175-1","citationCount":"7","resultStr":"{\"title\":\"Modelling of the twilight sky brightness using a numerical solution of the radiation transfer equation\",\"authors\":\"Yu.E. Belikov\",\"doi\":\"10.1016/0021-9169(95)00175-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A model of solar light scattering in the terrestrial spherical atmosphere is developed on the basis of a numerical solution of the radiation transfer equation. It allows us to model the twilight sky brightness. This brightness for the range of solar zenith angles of 92–106 degrees and wavelength 530 tun has been compared with the experimental data and with other calculated results. Modelling has been carried out for standard altitude distributions of the molecular number density and ozone absorption coefficient and for the aerosol model of Toon and Pollack (1976). The different layers' contribution and the contribution of different orders of scattering from'some altitudes to the zenith intensity have been obtained. The role of multiple scattering in the twilight sky brightness and a hypothesis on the high turbidity of the upper atmosphere are discussed.</p></div>\",\"PeriodicalId\":100754,\"journal\":{\"name\":\"Journal of Atmospheric and Terrestrial Physics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1996-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0021-9169(95)00175-1\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Atmospheric and Terrestrial Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0021916995001751\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Atmospheric and Terrestrial Physics","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0021916995001751","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Modelling of the twilight sky brightness using a numerical solution of the radiation transfer equation
A model of solar light scattering in the terrestrial spherical atmosphere is developed on the basis of a numerical solution of the radiation transfer equation. It allows us to model the twilight sky brightness. This brightness for the range of solar zenith angles of 92–106 degrees and wavelength 530 tun has been compared with the experimental data and with other calculated results. Modelling has been carried out for standard altitude distributions of the molecular number density and ozone absorption coefficient and for the aerosol model of Toon and Pollack (1976). The different layers' contribution and the contribution of different orders of scattering from'some altitudes to the zenith intensity have been obtained. The role of multiple scattering in the twilight sky brightness and a hypothesis on the high turbidity of the upper atmosphere are discussed.
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