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Relationships between UV (0.290–0.385 μm) and broad band solar radiation hourly values in Valencia and Córdoba, Spain

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  • Cañada, J
  • Pedros, G
  • Bosca, J.V

Abstract

Data were analysed of hourly UV (0.290–0.385 μm) and broad band, G, irradiation on a horizontal plane measured in Córdoba and Valencia, Spain, during the period January 1996 to December 1998. The mean monthly hourly values of the quotient between UV and total global radiation varied within the interval 4.4–5.6% for Valencia with a mean value of 5%, and in Córdoba they ranged from 3.9 to 4.5% with a mean value of 4.2%. If a general linear relation UV=mG is considered, the square of coefficient of correlation r2 is always greater than 0.91 for Valencia and 0.97 for Córdoba. The UV hemispherical transmittance ktUV was modelled as a function of the total clearness index kt, and new correlations were determined permitting improvements in estimation and to reduce the local nature of the correlations. Also, the solar elevation was considered as an additional parameter in the correlation between ktUV and kt, and it was proven that the coefficients of correlation improved for solar elevations over 55°. The ktUV index represented approximately 75% of the kt in Valencia and 71% in Córdoba.

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  • Cañada, J & Pedros, G & Bosca, J.V, 2003. "Relationships between UV (0.290–0.385 μm) and broad band solar radiation hourly values in Valencia and Córdoba, Spain," Energy, Elsevier, vol. 28(3), pages 199-217.
    • Handle: RePEc:eee:energy:v:28:y:2003:i:3:p:199-217
    DOI: 10.1016/S0360-5442(02)00111-1
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    Cited by:

    1. Wang, Lunche & Gong, Wei & Ma, Yingying & Hu, Bo & Wang, Wenling & Zhang, Miao, 2013. "Analysis of ultraviolet radiation in Central China from observation and estimation," Energy, Elsevier, vol. 59(C), pages 764-774.
    2. Wang, Lunche & Gong, Wei & Hu, Bo & Feng, Lan & Lin, Aiwen & Zhang, Ming, 2014. "Long-term variations of ultraviolet radiation in China from measurements and model reconstructions," Energy, Elsevier, vol. 78(C), pages 928-938.
    3. Khalil, Samy Abdelmordy & Shaffie, Ashraf Mustafa, 2014. "The relationship between total solar radiation and biologically erythematic radiation over urban region of Egypt," Renewable and Sustainable Energy Reviews, Elsevier, vol. 38(C), pages 1092-1099.
    4. Wang, Lunche & Gong, Wei & Luo, Ming & Wang, Wenfeng & Hu, Bo & Zhang, Ming, 2015. "Comparison of different UV models for cloud effect study," Energy, Elsevier, vol. 80(C), pages 695-705.
    5. Utrillas, M.P. & Marín, M.J. & Esteve, A.R. & Salazar, G. & Suárez, H. & Gandía, S. & Martínez-Lozano, J.A., 2018. "Relationship between erythemal UV and broadband solar irradiation at high altitude in Northwestern Argentina," Energy, Elsevier, vol. 162(C), pages 136-147.
    6. Porfirio, Anthony Carlos Silva & De Souza, José Leonaldo & Lyra, Gustavo Bastos & Maringolo Lemes, Marco Antonio, 2012. "An assessment of the global UV solar radiation under various sky conditions in Maceió-Northeastern Brazil," Energy, Elsevier, vol. 44(1), pages 584-592.
    7. Kalogirou, S.A. & Pashiardis, S. & Pashiardi, A., 2017. "Statistical analysis and inter-comparison of the global solar radiation at two sites in Cyprus," Renewable Energy, Elsevier, vol. 101(C), pages 1102-1123.
    8. Lisdelys González-Rodríguez & Amauri Pereira de Oliveira & Lien Rodríguez-López & Jorge Rosas & David Contreras & Ana Carolina Baeza, 2021. "A Study of UVER in Santiago, Chile Based on Long-Term In Situ Measurements (Five Years) and Empirical Modelling," Energies, MDPI, vol. 14(2), pages 1-20, January.
    9. Kudish, Avraham I. & Evseev, Efim G., 2011. "The analysis of solar UVB radiation as a function of solar global radiation, ozone layer thickness and aerosol optical density," Renewable Energy, Elsevier, vol. 36(6), pages 1854-1860.
    10. Jacovides, C.P. & Assimakopoulos, V.D. & Tymvios, F.S. & Theophilou, K. & Asimakopoulos, D.N., 2006. "Solar global UV (280–380nm) radiation and its relationship with solar global radiation measured on the island of Cyprus," Energy, Elsevier, vol. 31(14), pages 2728-2738.
    11. Escobedo, João F. & Gomes, Eduardo N. & Oliveira, Amauri P. & Soares, Jacyra, 2011. "Ratios of UV, PAR and NIR components to global solar radiation measured at Botucatu site in Brazil," Renewable Energy, Elsevier, vol. 36(1), pages 169-178.
    12. Leal, S.S. & Tíba, C. & Piacentini, R., 2011. "Daily UV radiation modeling with the usage of statistical correlations and artificial neural networks," Renewable Energy, Elsevier, vol. 36(12), pages 3337-3344.

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