基于遥感卫星图像的ATCOR2快速大气纠正模型及应用  

An Introduction to a Spatially-Adaptive Fast Atmospheric Correction for Satellite Remote Sensing Images

作　　者：王建[1] 潘竟虎 王丽红[2] 

机构地区：[1]中国科学院寒区旱区环境与工程研究所 [2]甘肃省遥感中心,甘肃兰州730000

出　　处：《遥感技术与应用》2002年第4期193-197,共5页Remote Sensing Technology and Application

基　　金：中国科学院知识创新工程项目"西部生态演变规律与水土资源可持续利用研究 ( KZCX1-10 -0 6 )";中科院寒旱所创新项目黑河流域典型区土地覆盖遥感调查及主题精度分析 ( CACX2 10 10 2)

摘　　要：在卫星遥感成像过程中 ,由于气溶胶和大气中分子吸收和散射的作用 ,造成数据质量下降甚至变化 ,以至于极大地影响着遥感信息的提取和参数反演的精度。越来越多的研究表明 :大气纠正将成为遥感理论和应用研究中的重要组成部分 ,能极大地提高卫星遥感数据在质量和时间系列的完整性。介绍一种适用于空间分布的快速大气纠正模型 ATCOR2 (A Spatially- Adaptive FastAtmospheric Correction- 2 ) ,详细介绍模型的算法、模块结构和计算流程 ,讨论参数文件的结构和意义 ,并通过一个实例给出In the process of satellite sensor imaging, the received message (digital code)have been impacted and changed as the reason of atmospheric absorption and scattering. This impact will lead to extract fallibly and also reduce the accuracy of Parameterization Methods for Remote Sensing Data. The fact derived from studies and conclusions shows the atmospheric correction is an important procedure and component in the remote sensing methods and applications. This paper gives an introduction of a Spatially-Adaptive Fast Atmospheric Correction(ATCOR2) including fast atmospheric correction algorithm, the structure of modules and calculation flow. Also, the Look-up Table presented the atmospheric profiles and catalogues would be recommended in detail. Meanwhile, a sample by using ATCOR2 for atmospheric correction has been given with a part of Landsat TM in the Source Region of Yellow River.

关 键 词：遥感卫星图像 ATCOR2模型 参数文件 大气纠正模型 

分 类 号：P407[天文地球—大气科学及气象学] TP79[自动化与计算机技术—检测技术与自动化装置]