We proposed a new atmospheric correction approach for HJ-1 CCD datasets
in which the aerosol optical depth(AOD)is acquired based on the relationships between surface reflectance of the blue band and red band over dense dark vegetation(DDV)regions.The atmospheric correction look-up tables(LUTs) were introduced to provide atmospheric correction coefficients under different aerosol loadings and sun-view geometry.The comparison of the results with intraday MODIS(Moderate Resolution Imaging Spectroradiometer) surface reflectance out-puts(MOD09) indicated the proposed atmospheric correction method has preferable accuracy.We did uncertainty analyses from the aspects of AOD retrieval accuracy
radiometric calibration accuracy
altitude impact and atmospheric water vapor con-tent impact.