Depolarization ratio of zenith scattered radiation and measured NO2 slant columns

Ivan K. Kostadinov; Giorgio Giovanelli; Fabrizio Ravegnani; Daniele Bortoli; Andrea Petritoli

doi:10.1117/12.366353

25 October 1999 Depolarization ratio of zenith scattered radiation and measured NO₂ slant columns

Ivan K. Kostadinov, Giorgio Giovanelli, Fabrizio Ravegnani, Daniele Bortoli, Andrea Petritoli

Proceedings Volume 3754, Polarization: Measurement, Analysis, and Remote Sensing II; (1999) https://doi.org/10.1117/12.366353
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

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.

Citation Download Citation

Ivan K. Kostadinov, Giorgio Giovanelli, Fabrizio Ravegnani, Daniele Bortoli, and Andrea Petritoli "Depolarization ratio of zenith scattered radiation and measured NO₂ slant columns", Proc. SPIE 3754, Polarization: Measurement, Analysis, and Remote Sensing II, (25 October 1999); https://doi.org/10.1117/12.366353

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