Comparison between experimental and calculated values of sky luminance in the Sun's vertical plane at Seville (Spain) |
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| Institution: | 1. National University of Science and Technology “MISIS”, Moscow, Russia;2. National Metallurgical Laboratory, Jamshedpur, India;3. Dpto. Fisica de Materiales, UPV/EHU, San Sebastian, Spain;4. IKERBASQUE, Basque Foundation for Science, Bilbao, Spain;1. Biology Faculty, Jenderal Soedirman University, Jl. Dr. Suparno 63, Grendeng, Purwokerto, Jawa Tengah, 53122, Indonesia;2. Biology Department, State University of Jakarta, Jl. Rawamangun Muka, RT 11 RW 14, Rawamangun, Pulo Gadung, Jakarta, 13220, Indonesia;1. School of Biomedical Engineering, Xinxiang Medical University, Xinxiang 453003, China;2. Henan Institute of Science and Technology, Xinxiang 453003, PR China |
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| Abstract: | An attempt has been made to find a satisfactory agreement between calculated and measured values of diffuse skylight luminance in the sun's vertical plane at Seville (Spain). Measurements were carried out at three different wavelengths in the visible region (λ1 = 632.2 nm, λ2 = 546.4 nm and λ3 = 435.6 nm). Data of atmospheric optical thickness was also obtained at these wavelengths.At first, computations dealt only with primary scattering, but the agreement was unsatisfactory.An approximation method which takes into account multiple scattering (aerosol and molecular) was then used with good results. The best agreement between experimental and calculated values is obtained at λ1 and λ2. |
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