SÉRIE ANUAL DAS IRRADIAÇÕES UV, PAR E IV EM BOTUCATU/SP/BRASIL
DOI:
https://doi.org/10.59627/cbens.2012.1916Palavras-chave:
radiações solares ultravioleta, fotossinteticamente ativa e infravermelhaResumo
No trabalho são apresentados os valores das irradiações H̅ G, H̅ UV, H̅ PAR e H̅ IV(horária e diária); das transmissividades atmosféricas K̅ t, K̅ tUV, K̅ tPAR e K̅ tIV e das razões UV/G, PAR /G e IV/G (K̅ UV, K̅ PAR e K̅ IV) médias mensais. As irradiações horárias foram maiores em março com valores de 1,7MJ/m2, 0,073MJ/m2, 0,85MJ/m2 e 0,79MJ/m2 e menores em julho com valores de 1,37MJ/m2, 0,052MJ/m2, 0,67MJ/m2 e 0,65MJ/m2 respectivamente. Similarmente, as irradiações diárias foram maiores em fevereiro com valores de 21,5MJ/m2, 10,7MJ/m2, 9,84MJ/m2 e 0,92MJ/m2 e menores em junho com valores de 13,05MJ/m2, 0,504MJ/m2 6,36MJ/m2 e 6,19MJ/m2 respectivamente. A transmissividade atmosférica das irradiações foi menor no mês mais nebuloso e úmido (janeiro), e maior no mês com maior número de dias com céu claro (abril): K̅ t, variou de 44,5% a 60,8%; K̅ tUV de 34,8% a 42,3%, K̅ tPAR de 57,7% a 74,8% e K̅ tIV de 36,4% a 53,2%. As razões K̅ UV e K̅ PAR foram maiores e a razão K̅ IV menor no mês mais nebuloso e úmido (janeiro). Por outro lado as razões K̅UV e K̅PAR foram menores e a razão K̅ IV maior no mês mais seco, sem nuvens e com aerossóis (agosto): K̅ UV variou de 4,6% a 3,9%, K̅ PAR de 50,7% a 48,2% e K̅ IV de 44,6% a 48,3%.
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Referências
Al-Aruri S, Rasas M, Al-Jamal K, Shaban N. An assessment of global UV solar radiation in the range (0.290-0.385 μm) in Kuwait.Solar Energy 1988;41:159-62.
Blackburn WJ, Proctor JTA. Estimating photosynthetically active radiation from measured solar irradiance. Solar Energy 1983;31:233-34.
Bolsenga SJ, Near Infrared Radiation in Northern Greenland. Journal Applied Meteorology, 1997, 6, 449-451.
Cañada J, Pedros G, Bosca JV. Relationships between UV (0.290-0.385μm) and broad band solar radiation hourly values in Valencia and Córdoba, Spain. Energy 2003; 28:199-217.
Carvalho, L. M. V.; Jones, C.; Liebmann, B.. Extreme precipitation events in sputheastern South America and large-scale convective patters in the South Atlantic Convergence Zone. Jornal of Climate, v. 15, p. 2377-2394, 2002.
Codato G, Oliveira AP, Soares J, Escobedo JF, Gomes E N, Pai AD. Global and diffuse solar irradiances in urban and rural areas in southeast of Brazil.Theoretical and Applied Climatology 2008 (in press).
Escobedo, João F.; Gomes, E. N.; Oliveira, A. P.; Soares, J. R. Ratios of UV, PAR and NIR components to global solar radiation measured at Botucatu site in Brazil. Renewable Energy, v. 36, p. 169-178, 2011.
Escobedo, J, Gomes, E, Oliveira, A, Soares, J., 2009. Modeling hourly and daily fractions of UV, PAR and NIR to global solar radiation under various sky conditions at Botucatu, Brazil. Applied Energy. , v.86, p.299 – 309.
Finch DA, Bailey WG, Mcarthur LJB, Nasitwitwi M. Photosynthetically active radiation regimes in a southern African savanna environment. Agricultural and Forest Meteorology 2004;122:229-38.
Fröhlich C, London J. Revised Instruction manual on radiation instruments and measurements. WCRP Publications series No. 7. WMO/TD No. 149, October 1986.
Huang, M., Jiang, H.; JU, W. Ultraviolet Radiation over Two Lakes in the Middle and Lower Reaches of the Yangtze River, China: An Innovative Model for UV Estimation. Terr. Atmos. Ocean. Sci., v. 22, n. 5, p. 491-506, 2011.
Jacovides CP, Tymvios FS, Assimakopoulos VD. The dependence of global and diffuse PAR radiation components on sky conditions at Athens, Greece. Agricultural and Forest Meteorology 2007;143:277-87.
Jacovides CP, Assimakopoulos VD, Tymvios FS, Asimakopoulos DN. Solar global UV (280-380nm) radiation and its relationship with solar global radiation measured on the island of Cyprus. Energy 2006;31:2728-38.
Liebmann, B.; Jones, C.; Carvalho, L. M. V. Interannual variability of daily extreme precipitation events in the state of São Paulo, Brazil. J. Climate, 14, p. 208–218, 2001.
Martinez-Lozano JA, Tena F, Utrillas MP. Ratio of UV to global broad band irradiation in Valencia, Spain.International Journal of Climatology 1999;19:903–11.
Ogunjobi KO. Ultraviolet (0.280-0.400 μm) and broadband solar hourly radiation at Kwangju, South Korea: analysis of their correlation with aerosol optical depth and clearness index. Atmospheric Research 2004;71:193-214.
Papaioannou G, Nikolidakis G, Asimakopoulos D, Retalis D. Photosynthetically active radiation in Athens. Agricultural and Forest Meteorology 1996;81:287–298.
Rao CRN. Photosynthetically active components of global solar radiation: measurements and model computations. Archives for Meteorology, Geophysics, and Bioclimatology1984;34:353-64.
Robaa SM. A study of ultraviolet solar radiation at Cairo urban area, Egypt. Solar Energy 2004;77:251-59.
Satyamurti,P e L.F.Mattos, 1989. Climatologycal lower trophosferic frontogenesis in the midlalatitudes due to horizontal deformation and divergence.Mon.Wea. Rev.,108:410-520.
Stigter, C.J.; Musabilha, M. M. The conservative ratio of photosynthetically active to total radiation in the tropics. Journal of Applied Ecology 1982;19:853-58.
Tiba, C.; Leal, N. M.; Piacentini, R. Estudo da radiação solar ultravioleta em Pernambuco. In: III Congresso Brasileiro de Energia Solar, 2010, BELÉM. III Congresso Brasileiro de Energia Solar, 2010. v. 3.
Willmott CJ. On the validation of models. Physic Geogr 198;2:184-94.
Zhang X, Zhang Y, Zhoub Y. Masuring and modellingphotosynthetically active radiation in Tibet Plateau during April-October. Agricultural Meteorology 2000;102:207-12.
