Depolarization properties of Asian dust (Kosa) measured in 1998-2000 at Okayama, Japan

H. Wei, R. Koga, Kengo Iokibe, O. Wada, Yoshitaka Toyota, N. Kagawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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 range-normalized 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.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsU.N. Singh, T. Itabe, N. Sugimoto
Pages559-566
Number of pages8
Volume4153
DOIs
Publication statusPublished - 2001
EventLidar Remote Sensing for Industry and Environment Monitoring - Sendai, Japan
Duration: Oct 9 2000Oct 12 2000

Other

OtherLidar Remote Sensing for Industry and Environment Monitoring
CountryJapan
CitySendai
Period10/9/0010/12/00

Fingerprint

Depolarization
depolarization
Dust
Japan
dust
vertical distribution
Multiple scattering
Optical radar
optical radar
homogeneity
examination
spatial resolution
Liquids
liquids
scattering
water
Water

Keywords

  • Asian dust (Kosa)
  • Depolarization ratio
  • Mie lidar
  • Range-normalized signal

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Wei, H., Koga, R., Iokibe, K., Wada, O., Toyota, Y., & Kagawa, N. (2001). Depolarization properties of Asian dust (Kosa) measured in 1998-2000 at Okayama, Japan. In U. N. Singh, T. Itabe, & N. Sugimoto (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4153, pp. 559-566) https://doi.org/10.1117/12.417092

Depolarization properties of Asian dust (Kosa) measured in 1998-2000 at Okayama, Japan. / Wei, H.; Koga, R.; Iokibe, Kengo; Wada, O.; Toyota, Yoshitaka; Kagawa, N.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / U.N. Singh; T. Itabe; N. Sugimoto. Vol. 4153 2001. p. 559-566.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wei, H, Koga, R, Iokibe, K, Wada, O, Toyota, Y & Kagawa, N 2001, Depolarization properties of Asian dust (Kosa) measured in 1998-2000 at Okayama, Japan. in UN Singh, T Itabe & N Sugimoto (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 4153, pp. 559-566, Lidar Remote Sensing for Industry and Environment Monitoring, Sendai, Japan, 10/9/00. https://doi.org/10.1117/12.417092
Wei H, Koga R, Iokibe K, Wada O, Toyota Y, Kagawa N. Depolarization properties of Asian dust (Kosa) measured in 1998-2000 at Okayama, Japan. In Singh UN, Itabe T, Sugimoto N, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4153. 2001. p. 559-566 https://doi.org/10.1117/12.417092
Wei, H. ; Koga, R. ; Iokibe, Kengo ; Wada, O. ; Toyota, Yoshitaka ; Kagawa, N. / Depolarization properties of Asian dust (Kosa) measured in 1998-2000 at Okayama, Japan. Proceedings of SPIE - The International Society for Optical Engineering. editor / U.N. Singh ; T. Itabe ; N. Sugimoto. Vol. 4153 2001. pp. 559-566
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