云偏振遥感综述  

Review of cloud polarimetric remote sensing

作　　者：王宇瑶 麻金继 李婧晗[1,4] 洪津 李正强[3] WANG Yuyao;MA Jinji;LI Jinghan;HONG Jin;LI Zhengqiang(College of Territorial Resources and Tourism,Anhui Normal University,Wuhu 241003,China;Key Laboratory of Optical Calibration and Characterization,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China;State Environmental Protection Key Laboratory of Satellite Remote Sensing,Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100101,China;Engineering Technology Research Center of Resources Environment and GIS,Wuhu 241003,China)

机构地区：[1]安徽师范大学地理与旅游学院,芜湖241003 [2]中国科学院安徽光学精密机械研究所通用光学定标与表征技术重点实验室,合肥230031 [3]中国科学院空天信息创新研究院国家环境保护卫星遥感重点实验室,北京100101 [4]资源环境与地理信息工程安徽省工程技术研究中心,芜湖241003

出　　处：《遥感学报》2022年第5期852-872,共21页NATIONAL REMOTE SENSING BULLETIN

基　　金：国家自然科学基金(编号:41671352)。

摘　　要：云是指停留在大气层中的水滴或冰晶胶体的集合体,也是地球上庞大水循环产生的有形结果,在全球气候中扮演着重要的角色。偏振遥感对光的辐射强度、方向、相位以及偏振状态等波谱特性进行描述,丰富了观测信息量,提升了观测信息的维度。为了更好地了解偏振遥感云的优势,本文对国际上发射的POLDER、APS、DPC等标志性的偏振传感器的特征和云反演算法进展进行了总结,涉及到相关偏振载荷参数信息、云参量算法的介绍和产品等相关内容,并就经典偏振云参量算法做了详细的总结和评价。随着国际上后续偏振传感器快速增加,对未来偏振传感器的发展方向和相关算法进行了展望。Clouds are collections of water droplets or ice crystal colloids suspended in the atmosphere.They are a visible manifestation of the Earth’s massive water cycle,which play an important role in global climate.Since the radiation intensity signal cannot accurately detect the internal physical characteristics of thick clouds,especially convective clouds,high-quality cloud observations cannot be achieved only by using this signal.Polarimetric remote sensing can describe the spectral characteristics of intensity,directions,phase positions,and polarization states of light,so as to expand the volumes and dimensions of the information observed.It can detect the size,shape,and other microphysical parameters,showing unique application advantages in cloud remote sensing.A wealth of literature on the development of polarimetric sensors can be found,for example,POLDER launched by France,ASP designed by the United States,and DPC developed by China.This paper summarizes the characteristics of internationally developed landmark polarimetric sensors and introduces the polarimetric sensor that will be launched soon.It is found that the development of polarimetric sensors underwent three main periods.During the first period,polarimetric sensors had low spatial resolution,fewer polarization spectrums,fewer angles,and low polarimetric accuracy.During the second period,the four elements mentioned above have been improved.In the third period,the sensors were developed into products with high spatial resolution,more polarization spectrum,large angles,and high polarimetric accuracy.The accessible spatial resolution,polarization data,and polarimetric accuracy were all greatly improved.In addition,this paper discusses the research on polarization data of cloud detection,physical characteristics,and optical characteristics of clouds.Starting from a series of problems existing in traditional remote sensing observation methods in cloud research,including poor cloud detection of accuracy,physical and optical characteristics,etc.,the advantag

关 键 词：大气遥感 偏振 POLDER APS DPC 云 矢量辐射传输 反演方法 

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]