ADEOS-II/GLI観測データを用いた雲, 水蒸気, エアロゾルの推定

概要

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Retrieval algorithms of cloud, water vapor, and aerosol, were developed for ADEOS-II/GLI dataset. The retrieval algorithm was applied to ADEOS-II GLI data, using oxygen A-band (763nm) for cloud geometrical properties such as cloud top and bottom heights. As a result, a global map of the heights was obtained as a preliminary one. Columnar amount of water vapor was also retrieved using near infrared bands (1150nm) over land in particular, which is possibly complementary to the water vapor amount retrieved with microwave radiometer over ocean. Monthly global maps of columnar water vapor amount were obtained together from ADEOS-II/GLI and ADEOS-II/AMSR. Further, Columnar amount of yellow sand (Kosa aerosol), which is one of the UV-absorbing aerosols, was retrieved using near ultraviolet bands (380nm) with 1 km spatial resolution over land. The retrieved aerosol property was compared to a ground-based lidar observation inland China and it was found that the result was consistent with each other. Although our algorithms seem to work well, these results are still preliminary, and detailed validation studies are necessary in furture.
2009-01-31