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Independent measurement of extinction and backscatter profiles in cirrus clouds by using a combined Raman elastic-backscatter lidar

Ansmann, Albert, Wandinger, Ulla, Riebesell, Maren, Weitkamp, Claus, Michaelis, Walfried·1992·Applied Optics

Abstract

Height profiles of the extinction and the backscatter coefficients in cirrus clouds are determined independently from elastic- and inelastic- (Raman) backscatter signals. An extended error analysis is given. Examples covering the measured range of extinction-to-backscatter ratios (lidar ratios) in ice clouds are presented. Lidar ratios between 5 and 15 sr are usually found. A strong variation between 2 and 20 sr can be observed within one cloud profile. Particle extinction coefficients determined from inelastic-backscatter signals and from elastic-backscatter signals by using the Klett method are compared. The Klett solution of the extinction profile can be highly erroneous if the lidar ratio varies along the measuring range. On the other hand, simple backscatter lidars can provide reliable information about the cloud optical depth and the mean cloud lidar ratio.

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Metadata

Authors
Ansmann, A., Wandinger, U., Riebesell, M., Weitkamp, C., & Michaelis, W.
Venue
Applied Optics
Published
1992-11-20
Volume
31
Issue
33
Pages
7113
ISSN
  • 0003-6935 (ISSN-L)
  • 1539-4522
OpenAlex
W1995515323
Cited by
752
References
0
FWCI
8.42
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Independent measurement of extinction and backscatter profiles in cirrus clouds by using a combined Raman elastic-backscatter lidar. https://app.cochat.ai/papers/10.1364/ao.31.007113
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Ansmann, A., Wandinger, U., Riebesell, M., Weitkamp, C., & Michaelis, W. (1992). Independent measurement of extinction and backscatter profiles in cirrus clouds by using a combined Raman elastic-backscatter lidar. Applied Optics. https://doi.org/10.1364/ao.31.007113

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