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atmospheric correction of the satellite data, for example correction of visible and near-infrared spectral bands, requires removing the adjacency effect that is due to the reflection from contiguous pixels. To evaluate the accuracy of the ATCOR software atmospheric correction method of Terra/ASTER data (Jun 30, 2002) we compared the NDVI parameters taken from different sources, such as ground measurement using ground radiometric measurement data (ASD's FieldSpec® Pro), atmospheric corrected ASTER L1B data and ASTER surface reflectance product (AST07) data. The study area named Sarobetsu Marsh is located in the coastal area of Hokkaido Island, Japan. It has been found that 5% of the scattering radiation is contained within the ASTER Green band, 47% of radiation was absorbed in the ASTER NIR band and 17% of radiation was absorbed in the ASTER SWIR6 band, respectively. There was no significant difference between ASD's measurement values and the ATCOR software output values in the ASTER reflection band and absorption bands of chlorophyll (i.e. NIR-band and Red-band). However, differences were seen in the ASTER scattering bands (i.e. visible Green band) and soil reflection bands (i.e. ASTER SWIR bands). Comparison of the original ASD's ground measurement data with the AST07 (©NASA/EOSDIS ASTER surface reflectance product data (L2B) values has revealed very low reflectance of a NIR band.

Correction of NDVI Calculated from ASTER L1B and ASTER (AST07) Data Based on Ground Measurement