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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 35 — Dec. 10, 2004
  • pp: 6440–6453

Raman lidar observations of cloud liquid water

Vincenzo Rizi, Marco Iarlori, Giuseppe Rocci, and Guido Visconti  »View Author Affiliations


Applied Optics, Vol. 43, Issue 35, pp. 6440-6453 (2004)
http://dx.doi.org/10.1364/AO.43.006440


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Abstract

We report the design and the performances of a Raman lidar for long-term monitoring of tropospheric aerosol backscattering and extinction coefficients, water vapor mixing ratio, and cloud liquid water. We focus on the system’s capabilities of detecting Raman backscattering from cloud liquid water. After describing the system components, along with the current limitations and options for improvement, we report examples of observations in the case of low-level cumulus clouds. The measurements of the cloud liquid water content, as well as the estimations of the cloud droplet effective radii and number densities, obtained by combining the extinction coefficient and cloud water content within the clouds, are critically discussed.

© 2004 Optical Society of America

OCIS Codes
(010.3640) Atmospheric and oceanic optics : Lidar
(010.7340) Atmospheric and oceanic optics : Water
(280.3640) Remote sensing and sensors : Lidar
(290.1090) Scattering : Aerosol and cloud effects
(290.1350) Scattering : Backscattering
(290.5860) Scattering : Scattering, Raman

History
Original Manuscript: November 24, 2003
Revised Manuscript: July 8, 2004
Manuscript Accepted: July 14, 2004
Published: December 10, 2004

Citation
Vincenzo Rizi, Marco Iarlori, Giuseppe Rocci, and Guido Visconti, "Raman lidar observations of cloud liquid water," Appl. Opt. 43, 6440-6453 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-35-6440


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