Lidar Observations of Aerosols in the Upper Troposphere

Observation on tropospheric aerosol particles was carried out on 27 April 1991 over Tsukuba, Japan. Aerosol particles collected in the upper troposphere at 7.5 km altitude were studied by electron microscopy. Soot‐containing particles were collected in a large number fraction (0.53) of the submicron particles. Such a high proportion of soot particles in the upper troposphere has not been reported in previous research. From the X‐ray analysis, vanadium was also detected in some of the particles, indicating the origin of oil combustion. The oil‐well fires in Kuwait are likely to be the origin of these soot particles. Calculated trajectories of the air suggested that these particles over Japan had circled the globe.

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Extremely high proportions of soot particles in the upper troposphere over Japan

Okada¹,

Ikegami²,

Uchino³

et al. 1992

Geophysical Research Letters

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Aerosol Particles in the Middle Troposphere over the Northwestern Pacific

Ikegami¹,

Okada²,

Zaizen³

et al. 1993

Journal of the Meteorological Society of Japan

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Sea-salt particles in the upper tropical troposphere

Ikegami

Okada

Zaizen

et al. 1994

Tellus B: Chemical and Physical Meteorology

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Lidar Observations of Aerosols in the Upper Troposphere

Cited by 3 publications

References 6 publications

Extremely high proportions of soot particles in the upper troposphere over Japan

Extremely high proportions of soot particles in the upper troposphere over Japan

Aerosol Particles in the Middle Troposphere over the Northwestern Pacific

Sea-salt particles in the upper tropical troposphere

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