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Proceedings Paper

Methodology and sample results of retrieving aerosol parameters by combined multiwavelength lidar and Sun-sky scanning measurements
Author(s): Anatoly P. Chaikovsky; A. I. Bril; Vladimir V. Barun; O. Dubovik; Brent N. Holben; Philippe Goloub; P. Sobolewski
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Paper Abstract

Scientific groups engaged within the frame of the observation networks AERONET and EARLINET perform this work. The methodology of coordinated multi-frequency lidar and radiometric investigation of atmospheric aerosols is being developed for using in network observations. The method to process data of a comprehensive experiment utilizes the approach1,2 designed to process CIMEL data. The retrieval of altitude profiles of aerosol parameters is based on solving a common equation set including lidar equations, equations for the whole atmospheric depth, and constraints on the smoothness of the solutions. The results of numerical experiments are given in the paper to estimate errors while retrieving aerosol parameters. The measurement procedure and algorithms for data processing were refined during the summer-autumn, 2002 at the stations of the Institute of Physics (Minsk, Belarus) and Institute of Geophysics (Belsk, Poland). The stations were equipped by devices CIMEL and three-frequency lidars (532, 694, and 1064 nm). The CIMELs operated according to the routine AERONET program during the measurements. To provide gathering the data on the whole areosol layer, a series of lidar observations was made at different elevation angles. A pro9cedure to successively approach to an optimal estimation of aerosol parameters is proposed in this work to enable data processing with real measurement errors. The results of retrieving vertical profiles of aerosol fraction concentrations are presented for different quality of measurement information.

Paper Details

Date Published: 23 February 2004
PDF: 12 pages
Proc. SPIE 5397, Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part II: Laser Sensing and Atmospheric Physics, (23 February 2004); doi: 10.1117/12.548588
Show Author Affiliations
Anatoly P. Chaikovsky, Institute of Physics (Belarus)
A. I. Bril, Institute of Physics (Belarus)
Vladimir V. Barun, Institute of Physics (Belarus)
O. Dubovik, NASA Goddard Space Flight Ctr. (United States)
Brent N. Holben, NASA Goddard Space Flight Ctr. (United States)
Philippe Goloub, Univ. des Sciences et Technologies de Lille (France)
P. Sobolewski, Institute of Geophysics (Poland)

Published in SPIE Proceedings Vol. 5397:
Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part II: Laser Sensing and Atmospheric Physics
Gennadii G. Matvienko; Georgii M. Krekov, Editor(s)

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