大气与环境光学学报, 2006, 1 (1): 0021, 网络出版: 2010-05-21
0.45~0.95μm太阳辐射在大气中的传输计算
Solar Radiation Transfer in Clear Atmosphere at 0.45~0.95μm
辐射传输 瑞利散射 Mie散射 离散坐标法 光谱亮度 radiative transfer Mie scattering Rayleigh scattering DOM spectra lightness
摘要
根据瑞利散射、分子吸收线数据库、Mie散射理论和离散坐标法(DOM),计算了在一定环境下(气溶胶种类、相对湿度、能见度等),在不同太阳天顶角和不同观察仰角时,因大气同太阳辐射的相互作用而形成的天空背景光谱特性。对0.45~0.95μm波长范围内,天空背景光谱亮度随气溶胶种类、波长、能见度及观察天顶角的变化作了数值计算和理论分析。计算结果表明,利用本文方法所得到的天空背景光谱亮度随太阳天顶角和观察仰角的变化趋势同实测是一致的。
Abstract
The spectral properties of sky background are discussed during the solar radiation transfer in clear atmosphere at 0.45~0.95μm. The results on the different solar zenith, different observational azimuth and given aerosol conditions are presented. All calculations are given based on Rayleigh scattering law,molecular absorption database, Mie scattering law and discrete-ordinate method(DOM). The theoretic analysis of spectral properties varied with aerosol kinds, wavelength, visual distance and observational azimuth is presented. By comparing with measurment, it is proved that the results accord with the actual observation data.
邱荣, 吴健, 杨春平, 王小东, 刘淼. 0.45~0.95μm太阳辐射在大气中的传输计算[J]. 大气与环境光学学报, 2006, 1(1): 0021. QIU Rong, WU Jian, YANG Chun-ping, WANG Xiao-dong, LIU Miao. Solar Radiation Transfer in Clear Atmosphere at 0.45~0.95μm[J]. Journal of Atmospheric and Environmental Optics, 2006, 1(1): 0021.