Measurement and modeled data of solar spectral global direct and diffuse radiation at Valencia (Spain)

Victoria E. Cachorro; Angel M. de Frutos; Pilar Utrillas; Jose A. Martinez-Lozano

doi:10.1117/12.196690

23 December 1994 Measurement and modeled data of solar spectral global direct and diffuse radiation at Valencia (Spain)

Victoria E. Cachorro, Angel M. de Frutos, Pilar Utrillas, Jose A. Martinez-Lozano

Proceedings Volume 2309, Passive Infrared Remote Sensing of Clouds and the Atmosphere II; (1994) https://doi.org/10.1117/12.196690
Event: Satellite Remote Sensing, 1994, Rome, Italy

Abstract

Since December, 1992 a continuing data bank of measurements of global, direct and diffuse solar irradiance for clear skies is being compiled at Valencia (Spain). The measurements are performed with the commercial LICOR spectroradiometer from 300 - 1100 nm with a spectral resolution of 6 nm. As a complementary work to irradiance measurements an extensive comparative task is being carried out between these experimental data and modelled ones. The chosen model is a detailed narrow band model developed at the Laboratoire d'Optique Atmospherique of the Universite of Lille (France) which uses a two-flux method to solve the radiative transfer equation. The multilayer model (17 atmospheric levels) considers the atmosphere as a plane-parallel absorbing and scattering medium where total, direct and diffuse spectral irradiance values are calculated at each level. Preliminary analysis shows promising results but the difficulty in modelling aerosol properties to fit experimental data is clearly manifested.

Citation Download Citation

Victoria E. Cachorro, Angel M. de Frutos, Pilar Utrillas, and Jose A. Martinez-Lozano "Measurement and modeled data of solar spectral global direct and diffuse radiation at Valencia (Spain)", Proc. SPIE 2309, Passive Infrared Remote Sensing of Clouds and the Atmosphere II, (23 December 1994); https://doi.org/10.1117/12.196690

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