Using the optical properties of aerosols from the AERONET database to calculate surface solar UV-B irradiance in Córdoba, Argentina: Comparison with measurements

GEORGINA C. ANDRADA; GUSTAVO G. PALANCAR; BEATRIZ TOSELLI

Elsevier

Lugar: Amsterdam; Año: 2008 vol. 42 p. 6011 - 6011

The main purpose of this study was to perform an evaluation of the particles’ opticalparameters’ influence on surface solar UV-B (280–315 nm) irradiance in Córdoba,Argentina. To achieve this objective UV-B irradiance dataset, AERONET (AErosol ROboticNETwork) database, and TUV (Tropospheric Ultraviolet and Visible) model were used toanalyze the effects of aerosols on surface irradiance on cloudless days during specific daysof winter and spring of the period 1999–2006. Together with a direct observer, totalirradiance (300–3000 nm) measurements were used as an ancillary tool to verify thecloudless condition. Every year, during this period, important reductions in surfaceirradiance are observed due to the aerosol load. Aerosols were incorporated in the modelthrough the aerosol optical depth at 340 nm, the asymmetry parameter at 440 nm, andthe single scattering albedo at 440 nm, all of them provided by AERONET Córdoba-CETT