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Proceedings Paper

Estimation of the ratio of aerosol to molecular backscattering by two closely disposed wavelengths using CuBr lidar sounding (510.6 nm, 578.2 nm)
Author(s): G. V. Kolarov; I. V. Grigorov; D. V. Stoyanov
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Paper Abstract

In this work we developed a method for estimation of the ratio of aerosol to molecular backscattering coefficients in lidar sounding of the atmosphere. We presented our first results of such analysis of lidar measurement carried out in June- July 2008, using lidar system with a CuBr-laser and two receiving channels. The laser emits simultaneously two closely disposed wavelengths λ1=510.6 nm and λ2=578.2 nm of similar output powers. The spectral distance between these wavelengths provides well distinguished molecular scattering signal. From the other side the both wavelengths are too close to accept (in the first order of approximation) a similarity in the aerosol scattering conditions. Both lidar channels have very similar technical parameters (as overlapping functions, photon detector sensitivity, optical transmission, etc.) and thus, provide similar output signal levels for both wavelengths. The preliminary results from the analysis of experimental data demonstrated the opportunity to detect and to process well distinguished lidar signals in clear atmosphere. The operational heights exceed 9 km at accumulation time 30 min, that is typical for the adopted integration time in European lidar network EARLINET.

Paper Details

Date Published: 19 December 2008
PDF: 8 pages
Proc. SPIE 7027, 15th International School on Quantum Electronics: Laser Physics and Applications, 702710 (19 December 2008); doi: 10.1117/12.822511
Show Author Affiliations
G. V. Kolarov, Institute of Electronics (Bulgaria)
I. V. Grigorov, Institute of Electronics (Bulgaria)
D. V. Stoyanov, Institute of Electronics (Bulgaria)

Published in SPIE Proceedings Vol. 7027:
15th International School on Quantum Electronics: Laser Physics and Applications
Tanja Dreischuh; Elena Taskova; Ekaterina Borisova; Alexander Serafetinides, Editor(s)

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