Abstract:In the Terra/MODIS collection 004 and collection 005 aerosol optical thickness (AOT), as well as Terra/MISR aerosol optical thickness exists difference over East-central China. We present a comprehensive evaluation using AERONET AOT data. 〖JP2〗The results indicated that after substantial improvement for MODIS aerosol algorithm, collection 005 AOT products were found more accurate relative to the collection 004 AOT products. Compared with MISR AOT data, MODIS collection 005 AOT data still exhibited superiority.