Anisotropic model for the diffuse biologically-effective irradiance of solar UV-radiation on inclined surfaces |
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| Authors: | G. Schauberger |
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| Affiliation: | (1) Abteilung Biometeorologie, Institut für Medizinische Physik, Veterinärmedizinische Universität Wien, Vienna, Austria |
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| Abstract: | Summary A model for biologically-effective ultraviolet radiation (UVR) of the sun is described, which allows the calculation of diffuse irradiance on inclined surfaces. A model is presented, for which isotropic scattered and reflected radiance are assumed. Using the horizon as a borderline between the upper and lower hemisphere, the scattering phenomena in the atmosphere for UVR are discussed. In contrast to models for other solar spectral ranges, the radiation field of UVR is close to isotropic. Only the horizon darkening by the long optical pathlengths was included in the model. This term was quantified by the UV albedo.Dedicated to O. Univ.-Prof. Dr. F. Steinhauser.With 1 Figure |
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