大气程辐射遥感图像与城市大气污染监测研究  

Research on Atmospheric Path Radiation Remote Sensing Image and Urban Atmospheric Pollution Monitoring

作　　者：李先华[1,2] 徐丽华[3] 曾齐红[1] 刘学锋[1] 常静[1] 毛建华[1] 

机构地区：[1]上海大学,遥感与空间信息科学研究中心,上海200072 [2]中国科学院香港中文大学地球科学信息联合实验室,临安311300 [3]浙江林业学院,环境科技学院

出　　处：《遥感学报》2008年第5期780-785,共6页NATIONAL REMOTE SENSING BULLETIN

基　　金：国家科技部公益性行业科研专项项目(编号:GYHY200706028);国家自然科学基金(编号:40771145);上海市教委科研发展基金(编号:07ZZ09);上海市教委重点学科建设项目资助(编号:J50104);高等学校博士学科点专项科研基金(编号:20070280011);上海市博士后专项基金(编号:06R214129)

摘　　要：作为对地探测的遥感技术所获取的遥感图像包含了地面和大气信息,并且主要是地面信息。利用地面反射率分布图像将遥感数字图像中弱的大气信息与强的地面目标信息分离,生成仅仅包含大气信息的大气程辐射遥感图像。利用多(高)光谱遥感数字图像中不同波段的大气程辐射遥感图像可以不受地面干扰地对城市大气污染的类型和程度(气溶胶粒径和含量)进行遥感监测。在大气污染地面观测数据(可吸入颗粒物PM10浓度)的支持下,利用MODIS多光谱遥感数字图像生成的对应多光谱大气程辐射遥感数字图像,以上海市为例进行了城市大气污染遥感监测的原理方法研究。The state of the atmospheric environment is related to the values of atmospheric path radiation in remote sensing data.As an important information resource,an atmospheric path radiation image derived from remotely sensed data can be used in many research fields.These include the research in the transmission properties of the atmosphere,the atmospheric modification of remote sensing image,the study of both regional and urban atmospheric environment,and the monitoring of the atmospheric environmental qualities.The remote sensing data collected by earth observation technology includes predominantly ground information and weak atmospheric information.The atmospheric path radiation remote sensing image which includes atmospheric information can be generated by separating the weak atmospheric signals from the strong ground returns in the remote sensing data.The key restriction on atmospheric environmental remote sensing lies both on the above process and extracting atmospheric information from the remote sensing data.Therefore,it is important to derive the data of quantitative atmospheric environmental pollution and precise atmospheric modification of the remotely sensed digital image.After many years of previous research,a scheme of generating the image of atmospheric path radiation by computing the value of atmospheric path radiation of each pixel using land reflectance is demonstrated in this paper.The principle and methodology for generating the heterogeneous atmospheric path radiation image are based on known surface reflectance.The atmospheric path radiation remote sensing image with different waveband from multi-spectral or hyper-spectral remote sensing image can monitor urban atmospheric pollution with different type and degree(size and content of aerosol) without ground interference.In this paper,the research of urban atmospheric pollution monitoring is developed from Shanghai City as a demonstration,with using the atmospheric path radiation remote sensing images from MODIS multi-spectral remote sensing image,

关 键 词：大气程辐射 遥感图像 城市大气 污染监测 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置] P407[自动化与计算机技术—控制科学与工程]