大气紫外临边辐射及偏折效应影响研究  

Research on Atmospheric Limb Radiation and Refractive Effect in UV Band

作　　者：郭晶[1,2] 杨春平[1] 何曾文 叶玉堂[1] 饶长辉[2] 

机构地区：[1]电子科技大学光电信息学院,成都610054 [2]中国科学院光电技术研究所,成都610209

出　　处：《电子科技大学学报》2014年第1期149-154,共6页Journal of University of Electronic Science and Technology of China

基　　金：预研基金(9140A03040809DZ02);中央高校基本科研业务费专项资金(103.1.2 E022050205)

摘　　要：首先基于输运理论建立了UV波段大气的临边辐射模型,提出了球面大气累加的解算方法。然后根据Snell折射定律及球面三角公式,给出了大气偏折时临边几何程的计算方法。最后计算了典型大气模式、典型切向高度时大气的临边透过率与临边辐射亮度,分析了大气偏折效应带来的影响。计算结果可为星载光学探测系统的仿真应用提供相关的理论基础,也可为全球环境变化、气候预测等研究提供重要参数。Atmospheric limb radiation model in UV band was established based on transport theory, and spherical atmospheric accumulation solution method is proposed. According to Snell＆#39;s law of refraction and spherical trigonometry formula, the calculation method of refractive path in limb geometry is presented. The calculation results of limb transmittance and limb radiance in typical atmospheric modes and tangent heights are given, and the impact of refractive effect is analyzed. The calculation results can provide a reference for space borne optical detection system in simulation and application and the study of global environmental change and climate prediction.

关 键 词：临边 辐射 偏折效应 Snell定律 切向高度 紫外 

分 类 号：O43[机械工程—光学工程]