NOAA AVHRRデータを用いた北東アジア海域のエアロゾル特性のリモートセンシング : 推定システムの開発

概要

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A retrieval system to infer properties of aerosol particles from AVHRR multi-spectral measurement was developed with an objective to detect a decadal-scale variation in aerosol properties and spatial distribution in the northeastern Asian region. The algorithm was based on theoretical radiative transfer simulation and optimized for accurate retrieval of aerosol properties over the northeastern Asian seas. Error analyses showed that our algorithm is accurate enough to study seasonal and regional variation of aerosol property. We utilized the advantage of 1-km resolution for precise cloud screening. It was demonstrated that various kinds of cloud including thin broken cloud are appropriately excluded from the retrieval with our cloud screening procedure using multi-spectral and textual characterization. A first result showed an interesting phenomenon of transport of mineral dust aerosol from the continent to Japan.論文Article
東北大学の論文
2002-03-31