Spectral distribution of the solar ultraviolet irradiance measured at Buenos Aires, Argentina

M. Raponi; Elian Wolfram; J. Pallotta; L. Otero; J. Salvador; Eduardo Jaime Quel; Ruben D. Piacentini

doi:10.1117/12.591009

21 October 2004 Spectral distribution of the solar ultraviolet irradiance measured at Buenos Aires, Argentina

M. Raponi, Elian Wolfram, J. Pallotta, L. Otero, J. Salvador, Eduardo Jaime Quel, Ruben D. Piacentini

Proceedings Volume 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications; (2004) https://doi.org/10.1117/12.591009
Event: 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, 2004, Porlamar, Venezuela

Abstract

The solar radiation at Earth surface is measured usually with instruments of narrow or large wavelengths bands. However, for different applications like the determination of irradiances related to biological actions and substance and material degradations, it is needed to know the spectrum at all wavelengths with reasonable resolution. In CEILAP (CONICET - CITEFA) placed at the Gran Buenos Aires suburbs (34° 33' S, 58° 30' W, 20 m asl), we made measurements of solar UV irradiance in clear sky days in the UV range (300 - 400 nm) range with a spectroradiometer Monospec 27 of National University of Rosario. The data represented in a 3D diagram show the variations in the solar spectrum along the day as function of the solar zenith angle. From the comparison with the results obtained employing the TUV program developed by Madronich/NCAR that solves the radiative transfer equation, it is possible to determine the influence of the ozone and aerosol atmospheric components on this irradiance. The spectra were calibrated against the absolute measurements made with an instrument GUV 541 at wavelengths of 305, 320, 340 and 380 nm, which is placed in the same building and was recently calibrated.

Citation Download Citation

M. Raponi, Elian Wolfram, J. Pallotta, L. Otero, J. Salvador, Eduardo Jaime Quel, and Ruben D. Piacentini "Spectral distribution of the solar ultraviolet irradiance measured at Buenos Aires, Argentina", Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); https://doi.org/10.1117/12.591009

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