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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 23 — Aug. 10, 2010
  • pp: 4441–4449

Backscattering linear depolarization ratio measurements of mineral, sea-salt, and ammonium sulfate particles simulated in a laboratory chamber

Tetsu Sakai, Tomohiro Nagai, Yuji Zaizen, and Yuzo Mano  »View Author Affiliations

Applied Optics, Vol. 49, Issue 23, pp. 4441-4449 (2010)

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The backscattering linear depolarization ratios of major types of tropospheric aerosol particles (Asian and Saharan mineral dust, sea salt, and ammonium sulfate) were measured using a laboratory chamber for interpreting the polarization lidar measurement of tropospheric aerosols. The values obtained from Asian and Saharan mineral particles were 0.39 ± 0.04 to 0.05 ( mean ± standard deviation) for a high number of concentrations in the supermicrometer range and 0.17 ± 0.03 to 0.14 ± 0.03 in the submicrometer range. The values were 0.08 ± 0.01 for sea-salt crystals, 0.04 ± 0.003 for ammonium sulfate crystals, and 0.01 ± 0.001 for both liquid droplets in the submicrometer range. These values can serve as a reference for estimating aerosol type using lidar measurement.

© 2010 Optical Society of America

OCIS Codes
(010.1100) Atmospheric and oceanic optics : Aerosol detection
(010.3640) Atmospheric and oceanic optics : Lidar

ToC Category:
Atmospheric and Oceanic Optics

Original Manuscript: April 12, 2010
Revised Manuscript: July 14, 2010
Manuscript Accepted: July 20, 2010
Published: August 6, 2010

Tetsu Sakai, Tomohiro Nagai, Yuji Zaizen, and Yuzo Mano, "Backscattering linear depolarization ratio measurements of mineral, sea-salt, and ammonium sulfate particles simulated in a laboratory chamber," Appl. Opt. 49, 4441-4449 (2010)

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