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Proceedings Paper

Depolarization properties of Asian dust (Kosa) measured from 1998 to 2000 at Okayama, Japan
Author(s): He Wei; Ryuji Koga; Kengo Iokibe; Osami Wada; Yoshitaka Toyota; Naoki Kagawa
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Paper Abstract

A Mie lidar system was built at Okayama University in 1998. The system is featured by the ability of discriminating depolarization of received signals with a spatial resolution of 15m. Examinations were conducted on the received rangenormalized signal and the depolarization ratio from Asian dust. Intense Asian dust occurred in springs of 1998-2000. Vertical distribution of Asian dust was found to be inhomogeneous contrary to the homogeneity assumption employed in preceding works. Multiple scattering in the layers of Asian dust also observed. Complicated structure of Asian dust wrapped by liquid or water droplets were also conjectured from the sudden changes of depolarization ratio in Asian dust layers.

Paper Details

Date Published: 13 February 2001
PDF: 8 pages
Proc. SPIE 4153, Lidar Remote Sensing for Industry and Environment Monitoring, (13 February 2001); doi: 10.1117/12.417092
Show Author Affiliations
He Wei, Okayama Univ. (United States)
Ryuji Koga, Okayama Univ. (Japan)
Kengo Iokibe, Okayama Univ. (Japan)
Osami Wada, Okayama Univ. (Japan)
Yoshitaka Toyota, Okayama Univ. (Japan)
Naoki Kagawa, Fukuyama Univ. (Japan)


Published in SPIE Proceedings Vol. 4153:
Lidar Remote Sensing for Industry and Environment Monitoring
Upendra N. Singh; Kazuhiro Asai; Toshihiro Ogawa; Upendra N. Singh; Toshikasu Itabe; Nobuo Sugimoto, Editor(s)

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