水平能见度与气溶胶光学厚度转换模型的适用性分析  

Applicability Analysis of Transformation Models for Aerosol Optical Depth and Horizontal Visibility

作　　者：朱忠敏[1,2] 龚威[1] 余娟[1] 田礼乔[1] 

机构地区：[1]武汉大学测绘遥感信息工程国家重点实验室,武汉市珞喻路129号430079 [2]武汉大学国家多媒体软件工程技术研究中心,武汉市珞珈山430072

出　　处：《武汉大学学报（信息科学版）》2010年第9期1086-1090,共5页Geomatics and Information Science of Wuhan University

基　　金：国家973计划资助项目(2009CB723905);国家863计划资助项目(2009AA12Z107);国家自然科学基金资助项目(10978003;40906092)

摘　　要：以实测的水平能见度和时间同步MODIS的气溶胶光学厚度(aerosol optical depth,AOD)数据为基础,验证了多个经典的AOD与能见度转换模型在全球不同区域的适用性。结果表明,模型中含有气溶胶标高的Peterson模型可以得到较高精度。Atmospheric aerosol optical depth change has great influence on the accuracy of Earth observation, and is one of the research hotspots of quantitative remote sensing. However, traditional atmospheric radiative transfer softwares such as 6S and MODTRAN choose horizontal meteorological visibility as the key optical property parameters of aerosol. Hence, thorough discussion of the relationship between aerosol optical depth and horizontal meteorological visibility has important practical significance. Four convert models are validated by measurements of horizontal meteorological visibility and synchronous AOD of MODIS. Results show that Peterson model with atmosphere scale height H can obtain higher accuracy.

关 键 词：光学厚度 能见度 转换模型 辐射传输 

分 类 号：P237.9[天文地球—摄影测量与遥感]