ADEOS/OCTS画像上の光学系内の散乱に基づくと思われる現象およびそれを考慮したエアロゾルモデルの推定法

抄録

An analysis was made for “a ghost like image defect”which was found in the specific OCTS (Ocean Color and Temperature Scanner onboard ADEOS: Advanced Earth Observing Satellite) data. It is found that the influences of the defect is around 10 [%] in terms of the radiance of the surrounding normal pixels. It is also found that the most possible reason for this is caused by the beam splitter No. 2 of OCTS optics. Due to the fact that the defect of OCTS band 7 is occurred at almost same location compared to the defect of band 8 while those of band 6 and 8 are occurred at a different location so that it is better to use the ratio of the upwelling radiance of aerosol particles between bands 7 and 8 rather than bands 6 and 8, the effectiveness of the aerosol model estimation of the bands 6 and 8 is better than that of bands 7 and 8 though.