Resumen de Measurement and modelling of global erythemal irradiance on inclined planes
D. Serrano, M. J. Marín, María Pilar Utrillas Esteban, F. Tena, José Antonio Martínez Lozano
The aim of this paper is the characterization of global erythemal irradiance (UVER) on inclinedplanes. Different geometric models have been studied, both isotropic and anisotropic, whichhave been used to estimate the global UVER on inclined planes at 40◦in North, South, Eastand West orientations. This has led to the hypothesis that these models, all of them originallydeveloped to obtain diffuse irradiance in solar spectrum, can be applied in a much more limitedrange of UVER. The results have been compared with experimental data using the followingstatistical parameters: mean bias deviation, mean absolute deviation and root mean squaredeviation. The global UVER was analyzed for all sky conditions and for cloudless sky conditions,and no significant differences were found between the different models in both cases. Overall, thebest performing model is Gueymard’s anisotropic model, even though it improves the Isotropicmodel in less than 2%.
