岡山大学 地球科学研究報告
Published by Okayama University Earth Science Reports Editorial Committee

スカイラジオメーターとライダーを用いた岡山上空のエアロゾル観測

永松 慎平 岡山大学大学院自然科学研究科
江川 大貴 岡山大学大学院自然科学研究科
塚本 修 岡山大学大学院自然科学研究科
抄録
 Aerosol is one of the controlling parameter for the global climate and also effects on local health hazards. The measurement of the aerosol was originally carried out as in-situ sampling and mass weight measurement including chemical analysis. Recently, remote sensing method is applied as satellite remote sensing and surface based remote sensing. Skyradiometer and LIDAR are surface based remote sensing system. Skyradiometer measures solar radiation as direct and scattered solar radiation affected by aerosols. LIDAR emit laser beam upward and it is backscattered by overlying aerosols. The backscattered light is received by a telescope and vertical distributions of the aerosols are obtained. These measurements require atmospheric radiation physics.  A Skyradiometer and a LIDAR were operated continuously at Okayama University campus and aerosol parameters were obtained from both of the system. Seasonal variations of the AOT (Aerosol Optical Thickness) and Angstrom parameter (α) are evaluated. During some dust events (e.g. yellow sand and PM2.5), time variations of these parameters were identified from both of the measurement system.
キーワード
Aerosol
Skyradiometer
LIDAR
Aerosol Optical Thickness (AOT)
ISSN
1340-7414
NCID
AN10506284
NAID