摘要
卫星资料在云顶高度反演中占有重要地位。文章主要从基于成像几何和通道特性两方面介绍了国内外利用卫星资料遥感获得云顶高度的方法和原理,分析了各类方法的优缺点,并探讨国内未来研究的方向。成像几何方法精度高但实现困难;单通道反演方法原理简单,精度较低;多通道反演方法可以综合变分等数学方法,实现了较高精度的云顶高度反演并应用于主流业务卫星。遥感云顶高度精度的提高依赖于辐射传输模式的改进,更多短波通道的应用等。
Satellite data occupies an important position in the cloud top height inversion.Mainly from two aspects of imaging geometry and channel features,this paper introduces the methods and principles of remote sensing cloud top height with satellite data at home and abroad,and analyses the advantages and disadvantages of various methods and discusses the future research directions in China.The imaging geometric method is difficult to be applied in practice although the inversion result is accurate.The principle of single channel inversion method is simple while the precision is low in result.The multi channels inversion method integrates various mathematic methods with the high precision of cloud top height,which has been applied to the mainstream satellites.The improvement for the accuracy of remote sensing cloud top height depends on the upgrading of radioactive transfer models.And more shortwave channels need to be applied.
出处
《气象水文海洋仪器》
2017年第1期116-120,共5页
Meteorological,Hydrological and Marine Instruments
关键词
卫星资料
遥感
云顶高度
satellite data
remote sensing
cloud top height
