光学精密工程2012，Vol.20Issue(3)：520-526,7.DOI:10.3788/OPE.20122003.0520
气溶胶对天空偏振辐射影响的测量
Measurement for influence of aerosols on polarized sky radiance
摘要
Abstract
The influence of the optical properties of aerosols on polarized sky radiance was researched to obtain the actual polarized sky radiance distribution model. Using the polarized sky radiance measuring system set up by ourselves, a lot of experiments were done at the same place but different dates. The degree of polarization and polarized sky radiation were acquired through these measurements in the solar altitude angle about 60° and the scattering of 90° for three wave bands of 435 - 465 nm,535 - 565 nm and 685 - 715 nm. The aerosol optical depth was calculated by theory formula according to atmospheric pressure and visibility. When the aerosol optical depth increases from 0. 2 to, 0. 55, the degrees of polarization for the three different wave bands decrease separately from 43% to 22% , 41% to 21% and 38% to 19% , but the radiation shows a trend of increase. Experimental results indicate that as the increase of aerosol optical depth, the degree of polarization will decrease, especially more significantly reduction for the longer wavelength. Therefore, the increase of aerosol optical depth is not conducive for the navigation according to polarized light.关键词
大气光学/大气散射/天空偏振辐射/气溶胶/气溶胶光学厚度Key words
atmospheric optics/ atmospheric scattering/ polarized sky radiance/ aerosol/ aerosol optical depth分类
数理科学引用本文复制引用
褚金奎,王威,崔岩,支炜,高启升..气溶胶对天空偏振辐射影响的测量[J].光学精密工程,2012,20(3):520-526,7.基金项目
国家973重点基础研究发展计划资助项目(No.2011CB302101,No.2011CB302105) （No.2011CB302101,No.2011CB302105）
中央高校基本科研业务费专项资金资助项目(No.DUT10ZD104) （No.DUT10ZD104）
