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Solar global UV (280–380nm) radiation and its relationship with solar global radiation measured on the island of Cyprus

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  • Jacovides, C.P.
  • Assimakopoulos, V.D.
  • Tymvios, F.S.
  • Theophilou, K.
  • Asimakopoulos, D.N.

Abstract

We report the first observations of solar global UV (280–380nm) radiation on the island of Cyprus obtained during an ongoing joint research project between the University of Athens and the Meteorological Service of Cyprus. Hourly global UV (Guv) and global (Gh) solar irradiances are measured and the relationship between the two radiant fluxes is investigated at Athalassa, Cyprus (35°15′N, 33°40′E, 165m above MSL). These data are used to determine the temporal variability of the percentage ratio of solar global UV to solar global irradiation (Guv/Gh) and its dependence on various atmospheric conditions. Analyzing the data set, an inverse correlation between ozone column amount and the precise UV/Global ratio was found, which can be rather attributed to the change of various atmospheric parameters than the ozone column. The analysis of hourly percentage ratio values reveals a definite daily pattern with lower values during sunrise/sunset and higher values around noon. The variation of the percentage ratios (Guv/Gh) ranges from 3.95±0.29% in September to 2.92±0.42% in August for hourly values, while for daily values, the variation is between 2.85±0.32% in August and 3.68±0.1% in September, with annual mean values of 3.33±0.21% for hourly and 3.19±0.17% for daily data. Finally, the present data reveals a seasonal contribution of the aerosol extinction on the precise (Guv/Gh) ratio values.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:energy:v:31:y:2006:i:14:p:2728-2738
    DOI: 10.1016/j.energy.2005.11.021
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    1. Jacovides, C.P. & Kaskaoutis, D.G. & Tymvios, F.S. & Asimakopoulos, D.N., 2004. "Application of SPCTRAL2 parametric model in estimating spectral solar irradiances over polluted Athens atmosphere," Renewable Energy, Elsevier, vol. 29(7), pages 1109-1119.
    2. 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.
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    1. Pashiardis, S. & Kalogirou, S.A. & Pelengaris, A., 2017. "Statistical analysis for the characterization of solar energy utilization and inter-comparison of solar radiation at two sites in Cyprus," Applied Energy, Elsevier, vol. 190(C), pages 1138-1158.
    2. Behrang, M.A. & Assareh, E. & Noghrehabadi, A.R. & Ghanbarzadeh, A., 2011. "New sunshine-based models for predicting global solar radiation using PSO (particle swarm optimization) technique," Energy, Elsevier, vol. 36(5), pages 3036-3049.
    3. 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.
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    5. 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.
    6. 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.
    7. 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.
    8. Jacovides, C.P. & Boland, J. & Rizou, D. & Kaltsounides, N.A. & Theoharatos, G.A., 2012. "School Students participation in monitoring solar radiation components: Preliminary results for UVB and UVA solar radiant fluxes," Renewable Energy, Elsevier, vol. 39(1), pages 367-374.
    9. Escobedo, João F. & Gomes, Eduardo N. & Oliveira, Amauri P. & Soares, Jacyra, 2009. "Modeling hourly and daily fractions of UV, PAR and NIR to global solar radiation under various sky conditions at Botucatu, Brazil," Applied Energy, Elsevier, vol. 86(3), pages 299-309, March.
    10. 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.
    11. 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.
    12. Ghoneim, Adel A. & Kadad, Ibrahim M. & Altouq, Majida S., 2013. "Statistical analysis of solar UVB and global radiation in Kuwait," Energy, Elsevier, vol. 60(C), pages 23-34.
    13. El Ouderni, Ahmed Ridha & Maatallah, Taher & El Alimi, Souheil & Ben Nassrallah, Sassi, 2013. "Experimental assessment of the solar energy potential in the gulf of Tunis, Tunisia," Renewable and Sustainable Energy Reviews, Elsevier, vol. 20(C), pages 155-168.
    14. Ibrahim M. Kadad & Ashraf A. Ramadan & Kandil M. Kandil & Adel A. Ghoneim, 2022. "Relationship between Ultraviolet-B Radiation and Broadband Solar Radiation under All Sky Conditions in Kuwait Hot Climate," Energies, MDPI, vol. 15(9), pages 1-19, April.
    15. 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.

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