Vertical radiative properties of atmospheric aerosols in a representative continental area of north-central Spain during 1995

Victoria E. Cachorro; Plinio Duran; Ricardo Vergaz; Angel M. de Frutos

doi:10.1117/12.332698

14 December 1998 Vertical radiative properties of atmospheric aerosols in a representative continental area of north-central Spain during 1995

Victoria E. Cachorro, Plinio Duran, Ricardo Vergaz, Angel M. de Frutos

Author Affiliations +

Proceedings Volume 3495, Satellite Remote Sensing of Clouds and the Atmosphere III; (1998) https://doi.org/10.1117/12.332698
Event: Remote Sensing, 1998, Barcelona, Spain

Abstract

Direct solar irradiance spectra under clear skies have been carefully measured in a rural station in the region of 'Castilla y Leon' of typical continental climate during 1995 in order to determine the physical and radiative characteristics of atmospheric aerosols in this area. About 300 spectra have been performed with a LI-1800 spectroradiometer with a spectral resolution of 6 nm from 300 nm to 1100 nm and a wavelength sampling of 1 nm. This high-moderate spectral resolution allowed us to retrieve the experimental spectral aerosol optical depth (AOD) using spectral windows of non-absorption modeling it by the Angstrom formula. These modeled AOD spectra was taken, instead of the experimental one, in order to determine the columnar particle size distribution of atmospheric aerosols using the Mie theory and a pseudo-inversion method. We have assumed a monomodal lognormal function with a fixed standard deviation of (sigma) equals 2.5 and two particle refractive indices based on climate characteristics of our continental are of study.

Citation Download Citation

Victoria E. Cachorro, Plinio Duran, Ricardo Vergaz, and Angel M. de Frutos "Vertical radiative properties of atmospheric aerosols in a representative continental area of north-central Spain during 1995", Proc. SPIE 3495, Satellite Remote Sensing of Clouds and the Atmosphere III, (14 December 1998); https://doi.org/10.1117/12.332698

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