基于MODIS遥感影像的大气水汽反演研究  

Retrieval of Atmospheric Total Water Vapor with MODIS Data

作　　者：王丽美[1] 夏春林[1] 孙林[2] 

机构地区：[1]辽宁工程技术大学研究生学院,阜新123000 [2]山东科技大学研究生学院,青岛266510

出　　处：《石河子大学学报（自然科学版）》2009年第4期401-404,共4页Journal of Shihezi University(Natural Science)

摘　　要：目前基于MODIS的水汽反演算法已基本成熟,大部分方法是用6S、MODTRAN等辐射传输模型模拟的倒大气透过率与水汽含量的关系计算大气水汽。由于模型本身的精度及模型中大量参数的不确定性,使得反演结果精度受到限制,而直接基于遥感图像本身的反演算法解决了这一问题。本文提出了基于影像数据本身的水汽总含量反演算法,对通道比值法进行了改进,得到了的水汽反演结果与MODIS大气水汽产品有较好的一致性。At present, the MODIS-based anti-vapor algorithm has been mature, most of the methods used 6S, MODTRAN, such radiation transport simulation model of the atmosphere was water vapor transmission and the rela-tionship between the calculation of water vapor in the atmosphere. As the model itself and the accuracy of the model in a large number of parameters uncertain, making the results of inversion accuracy is limited, based on remote sensing images and direct their own anti-algorithm to solve this problem. In this paper, based on image data of the total water content in its own anti-algorithm, the ratio of the channel to improve the law, has been the result of inversion of water vapor and water vapor in the atmosphere MODIS products have better consistency.

关 键 词：MODIS 水汽总含量 通道比值法 

分 类 号：P412.27[天文地球—大气科学及气象学]