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Murayama et al. 2004
Murayama, T., Müller, D., Wada, K., Shimizu, A., Sekiguchi, M. and Tsukamoto, T. (2004). Characterization of Asian dust and Siberian smoke with multi-wavelength Raman lidar over Tokyo, Japan in spring 2003. Geophysical Research Letters 31: doi: 10.1029/2004GL021105. issn: 0094-8276.

In the spring of 2003, we observed lofted Asian dust and Siberian forest-fire smoke plumes in the free troposphere over Tokyo, Japan with a dual-wavelength Raman lidar. These data show clear signatures of the optical characteristics depending on the aerosol type. The Asian-dust layer shows that the particle depolarization ratio (PDR) at 532 nm is ~20%, and the extinction-to-backscatter ratio (lidar ratio) at 355 nm is ~49 sr, which is close to ~43 sr measured at 532 nm. On the contrary, the smoke layers show that the PDR is as small as 5--8% or less, and the lidar ratio at 355 nm is ~40 sr, which is considerably lower than ~65 sr which was measured at 532 nm. We also applied an inversion algorithm for the smoke case. The effective radius was ~0.22 ¿m and the single-scattering albedo at 532 nm was ~0.95.

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Abstract

Keywords
Atmospheric Composition and Structure, Aerosols and particles (0345, 4801), Atmospheric Composition and Structure, Troposphere—constituent transport and chemistry, Atmospheric Composition and Structure, Instruments and techniques
Journal
Geophysical Research Letters
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Publisher
American Geophysical Union
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