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Optics Express

Optics Express

  • Editor: C. Martijin de Sterke
  • Vol. 15, Iss. 9 — Apr. 30, 2007
  • pp: 5327–5332

The depolarization - attenuated backscatter relation: CALIPSO lidar measurements vs. theory

Yongxiang Hu, Mark Vaughan, Zhaoyan Liu, Bing Lin, Ping Yang, David Flittner, Bill Hunt, Ralph Kuehn, Jianping Huang, Dong Wu, Sharon Rodier, Kathy Powell, Charles Trepte, and David Winker  »View Author Affiliations


Optics Express, Vol. 15, Issue 9, pp. 5327-5332 (2007)
http://dx.doi.org/10.1364/OE.15.005327


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Abstract

Using measurements obtained by the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite, relationships between layer-integrated depolarization ratio (8) and layer-integrated attenuated backscatter (γ′) are established for moderately thick clouds of both ice and water. A new and simple form of the δ-γ′ relation for spherical particles, developed from Monte Carlo simulations and suitable for both water clouds and spherical aerosol particles, is found to agree well with the observations. A high-backscatter, low-depolarization δ-γ′ relationship observed for some ice clouds is shown to result primarily from horizontally oriented plates and implies a preferential lidar ratio - depolarization ratio relation in nature for ice cloud particles containing plates. ©2007 Optical Society of America

© 2007 Optical Society of America

OCIS Codes
(010.3640) Atmospheric and oceanic optics : Lidar
(290.1090) Scattering : Aerosol and cloud effects
(290.4210) Scattering : Multiple scattering

ToC Category:
Atmospheric and ocean optics

History
Original Manuscript: February 5, 2007
Revised Manuscript: April 11, 2007
Manuscript Accepted: April 16, 2007
Published: April 17, 2007

Citation
Yongxiang Hu, Mark Vaughan, Zhaoyan Liu, Bing Lin, Ping Yang, David Flittner, Bill Hunt, Ralph Kuehn, Jiangping Huang, Dong Wu, Sharon Rodier, Kathy Powell, Charles Trepte, and David Winker, "The depolarization - attenuated backscatter relation: CALIPSO lidar measurements vs. theory," Opt. Express 15, 5327-5332 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-9-5327


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References

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