Atmospheric correction of visible to middle-infrared EOS-MODIS data over land surfaces: Background, operational algorithm and validation

摘要: The NASA moderate resolution imaging spectroradiometer (MODIS) instrument will provide a global and improved source of information for the study land surfaces with spatial up to 250 m. Prior derivation various biophysical parameters based on surface reflectances, top atmosphere signals need be radiometrically calibrated corrected atmospheric effects. present paper describes in detail state art techniques that used correction MODIS bands 1 through 7, centered at 648, 858, 470, 555, 1240, 1640, 2130 nm, respectively. Previous operational schemes have assumed standard zero or constant aerosol loading uniform, Lambertian surface. algorithm, reported here, uses water vapor derived from data, corrects adjacency effects takes into account directional properties observed This also implementation these its optimization. are applied remote sensing data Landsat Thematic Mapper (TM), NOAA advanced very high radiometer (AVHRR), airborne simulator (MAS) validated against ground-based measurements Aerosol Robotic Network (AERONET).