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Proceedings Paper

Depolarization ratio of zenith scattered radiation and measured NO2 slant columns
Author(s): Ivan K. Kostadinov; Giorgio Giovanelli; Fabrizio Ravegnani; Daniele Bortoli; Andrea Petritoli
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Paper Abstract

The present paper deals with the factors influencing the accuracy of the DOAS and in particularly, with the changing of the depolarization ratio of the zenith scattered radiation and related variations of the retrieved NO2 slant column. Ground based measurements carried out during 1997 and 1998 of the polarization state of the zenith- scattered radiation and the NO2 slant columns have been obtained in 4075 angstrom - 4640 angstrom spectral interval. The depolarization ratio is calculated from the spectra registered with a sheet linear polarizer, inserted into the instrument. A linear regression analysis is applied to retrieve NO2 slant columns. The obtained results are analyzed and discussed.

Paper Details

Date Published: 25 October 1999
PDF: 9 pages
Proc. SPIE 3754, Polarization: Measurement, Analysis, and Remote Sensing II, (25 October 1999); doi: 10.1117/12.366353
Show Author Affiliations
Ivan K. Kostadinov, ISAO-CNR (Italy) and STIL-BAS (Bulgaria) (Italy)
Giorgio Giovanelli, Istituto di Scienze dell'Atmosfera e dell'Oceano (Italy)
Fabrizio Ravegnani, Istituto di Scienze dell'Atmosfera e dell'Oceano (Italy)
Daniele Bortoli, Istituto di Scienze dell'Atmosfera e dell'Oceano (Italy)
Andrea Petritoli, Istituto di Scienze dell'Atmosfera e dell'Oceano (Italy)


Published in SPIE Proceedings Vol. 3754:
Polarization: Measurement, Analysis, and Remote Sensing II
Dennis H. Goldstein; David B. Chenault, Editor(s)

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