title: [Evaluation of four dark object atmospheric correction methods based on ZY-3 CCD data].
abstract: The present paper performed the evaluation of four dark-object subtraction(DOS) atmospheric correction methods based on 2012 Inner Mongolia experimental data The authors analyzed the impacts of key parameters of four DOS methods when they were applied to ZY-3 CCD data The results showed that (1) All four DOS methods have significant atmospheric correction effect at band 1, 2 and 3. But as for band 4, the atmospheric correction effect of DOS4 is the best while DOS2 is the worst; both DOS1 and DOS3 has no obvious atmospheric correction effect. (2) The relative error (RE) of DOS1 atmospheric correction method is larger than 10% at four bands; The atmospheric correction effect of DOS2 works the best at band 1(AE (absolute error)=0.0019 and RE=4.32%) and the worst error appears at band 4(AE=0.0464 and RE=19.12%); The RE of DOS3 is about 10% for all bands. (3) The AE of atmospheric correction results for DOS4 method is less than 0. 02 and the RE is less than 10% for all bands. Therefore, the DOS4 method provides the best accuracy of atmospheric correction results for ZY-3 image.
authors.forename: Hong
authors.initials: H
authors.lastname: Guo
authors.forename: Xing-fa
authors.initials: XF
authors.lastname: Gu
authors.forename: Yong
authors.initials: Y
authors.lastname: Xie
authors.forename: Tao
authors.initials: T
authors.lastname: Yu
authors.forename: Hai-liang
authors.initials: HL
authors.lastname: Gao
authors.forename: Xiang-qin
authors.initials: XQ
authors.lastname: Wei
authors.forename: Qi-yue
authors.initials: QY
authors.lastname: Liu