Improvement of Dark Object Method in Atmospheric Correction of hyperspectral remotely sensed data  

作　　者：ZHAO Xiang LIANG ShunLin LIU SuHong WANG JinDi QIN Jun LI Qing LI XiaoWen 

机构地区：[1]State Key Laboratory of Remote Sensing Science,Jointly Sponsored by Beijing Normal University and the Institute of Remote Sensing Applications of Chinese Academy of Sciences,Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities,School of Geography,Beijing Normal University,Beijing 100875,China [2]China Center for Resource Satellite Data and Applications,Beijing 100073,China [3]Department of Geography,2181 Lefrak Hall,University of Maryland,College Park,MD20742,USA

出　　处：《Science China Earth Sciences》2008年第3期349-356,共8页中国科学（地球科学英文版）

基　　金：the National Basic Research Program of China (Grant No. 2007CB714403);the National Natural Science Foundation of China (Grant Nos. 40571107 and 40771150);the High Technology Research and Development Project (Grant No.2005AA133011- 3);the Program for Changjiang Scholars and Innova-tive Research Team in University

摘　　要：The existing methods in atmospheric correction of hyperspectral data usually focus on removing the effects of water vapor and other absorptive gases, while this paper mainly studies the method of re- moving the influence of the aerosol and the water vapor simultaneously. Because the hyperspectral data has a larger number of bands, the conventional dark object method cannot be applied to the at- mospheric correction of the hyperspectral data which can be improved, as described in this paper, by adequately making use of spectral characteristics of the hyperspectral data with an iterative correction during the whole process. The effects of the aerosol and water vapor are eliminated at the same time finally. The improved dark object method is used to do the atomospheric correction of the Hyperion data in Yanzhou, Shandong Province as an example. And the result indicates that it can correct the atmospheric influence of the hyperspectral data quickly and remarkably.The existing methods in atmospheric correction of hyperspectral data usually focus on removing the effects of water vapor and other absorptive gases, while this paper mainly studies the method of removing the influence of the aerosol and the water vapor simultaneously. Because the hyperspectral data has a larger number of bands, the conventional dark object method cannot be applied to the atmospheric correction of the hyperspectral data which can be improved, as described in this paper, by adequately making use of spectral characteristics of the hyperspectral data with an iterative correction during the whole process. The effects of the aerosol and water vapor are eliminated at the same time finally. The improved dark object method is used to do the atomospheric correction of the Hyperion data in Yanzhou, Shandong Province as an example. And the result indicates that it can correct the atmospheric influence of the hyperspectral data quickly and remarkably.

关 键 词：DARK object HYPER spectral ATMOSPHERIC correction REMOTE sensing HYPERION 

分 类 号：P407[天文地球—大气科学及气象学]