Spectral measurements of visible solar d
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M.A. Mosalam Shaltout; U. Ali Rahoma; A. Fathy
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Article
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1996
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Elsevier Science
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English
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Abstrac~Solar radiation spectra were measured by a ground-level pyrheliometer (Eppley NIP) equipped with a filter wheel. Three flat, circular, Schott filters were used to define three spectral bands. The filters were large band-pass filters of the types OG530, RG630 and RG695. The experiment was con