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Concerning the relationship between clear‐sky, global and direct‐beam, solar spectra
Author(s) -
Faiman David,
Jacob Sareet,
Karnieli Ar
Publication year - 2002
Publication title -
progress in photovoltaics: research and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.286
H-Index - 131
eISSN - 1099-159X
pISSN - 1062-7995
DOI - 10.1002/pip.451
Subject(s) - sky , spectroradiometer , spectral line , rayleigh scattering , collimated light , physics , beam (structure) , diffuse sky radiation , optics , scattering , computational physics , atmospheric sciences , astrophysics , astronomy , reflectivity , laser
Clear‐sky direct‐beam and normal global solar spectra were measured with a spectroradiometer with and without a collimating tube. The ratio of the two spectra was found to be well approximated by a simple two‐parameter formula suggested by Rayleigh scattering. Copyright © 2002 John Wiley & Sons, Ltd.