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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 9 — Mar. 21, 2005
  • pp: 1726–1734

Improved retrievals of the optical properties of cirrus clouds by a combination of lidar methods

Bertrand Cadet, Vincent Giraud, Martial Haeffelin, Philippe Keckhut, Anne Rechou, and Serge Baldy  »View Author Affiliations


Applied Optics, Vol. 44, Issue 9, pp. 1726-1734 (2005)
http://dx.doi.org/10.1364/AO.44.001726


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Abstract

We focus on improvement of the retrieval of optical properties of cirrus clouds by combining two lidar methods. We retrieve the cloud's optical depth by using independently the molecular backscattering profile below and above the cloud [molecular integration (MI) method] and the backscattering profile inside the cloud with an a priori effective lidar ratio [particle integration (PI) method]. When the MI method is reliable, the combined MI-PI method allows us to retrieve the optimal effective lidar ratio. We compare these results with Raman lidar retrievals. We then use the derived optimal effective lidar ratio for retrieval with the PI method for situations in which the MI method cannot be applied.

© 2005 Optical Society of America

OCIS Codes
(010.3640) Atmospheric and oceanic optics : Lidar
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(280.3640) Remote sensing and sensors : Lidar

Citation
Bertrand Cadet, Vincent Giraud, Martial Haeffelin, Philippe Keckhut, Anne Rechou, and Serge Baldy, "Improved retrievals of the optical properties of cirrus clouds by a combination of lidar methods," Appl. Opt. 44, 1726-1734 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-9-1726

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