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１巻１号 （2020年4月） Volume 1, Number 1 (April 2020) |
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解説:アジアダストのライダー観測 pp. 29-42 Technical Review: Lidar Observation of Asian Dust 甲斐 憲次 Kenji KAI |
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Abstract The author has carried out lidar observations of the Asian dust since 1986. The present paper described the results of the lidar observations over Tsukuba, Japan, the Taklimakan Desert, China, and Gobi Desert, Mongolia. A combination of the ruby lidar observation at Tsukuba and a three-dimensional numerical simulation showed a long-range transport of the Asian dust from the Gobi Desert to Japan. A Mie-scattering depolarization lidar in Aksu, Xinjiang, China showed the structure of the dust layer in the Taklimakan Desert that was affected by a great local circulation between the Tianshan Mountain and Tarim Basin. A lidar network observation in the Gobi Desert showed a transport of the dust from the atmospheric boundary layer to the free troposphere by a cold frontal system, moving across the desert. Finally, a model of the Mie-scattering depolarization lidar is proposed for observations in the atmospheric boundary layer and lower troposphere. |