POLDERデータを用いたエアロゾル特性の導出

1.データの切り出しからフレーム画像表示まで

抄録

ADEOS/POLDER(POLarization and Directionality of the Earth's Reflectance) is the first space-based sensor aimed to observe the polarization and directionality of solar radiation reflected by the Earth atmospheresurface system. POLDER instrument is a multispectral photopolarimeter consisting of a two dimensional CCD detector array with a wide field of view of ±51° and ±43° in cross-track and along-track directions. POLDER measures the polarized light at three polarization angles. As for the multi-angle observations, it has a capability of measuring the light reflected by the target with 14 directions. On the other hand, due to this variety of measurements, POLDER products are very complicated and intractable. All POLDER data are processed and distributed by CNES in France. This paper introduces an overview of POLDER level 1 products and algorithms for processing line from the Level 1 data to frame-images. Once the frame-image has been obtained, we can get valuable information of clouds, atmospheric aerosols, land surface and ocean.