Horizontal and sun-normal spectral biologically effective ultraviolet irradiances

A V Parisi; Michael G Kimlin

doi:10.1016/S1011-1344(99)00128-1

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Horizontal and sun-normal spectral biologically effective ultraviolet irradiances

Journal article

Open access

Peer reviewed

Horizontal and sun-normal spectral biologically effective ultraviolet irradiances

A V Parisi and Michael G Kimlin

Journal of Photochemistry and Photobiology B: Biology, Vol.53(1-3), pp.70-74

1999

DOI: https://doi.org/10.1016/S1011-1344(99)00128-1

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Abstract

solar UV

sun-normal radiation

diffuse

The dependence of the spectral biologically effective solar UV irradiance on the orientation of the receiver with respect to the sun has been determined for relatively cloud-free days at a sub-tropical Southern Hemisphere latitude for the solar zenith angle range 35-64°. For the UV and biologically effective irradiances, the sun-normal to horizontal ratio for the total UV ranges from 1.18±0.05 to 1.27±0.06. The sun-normal to horizontal ratio for biologically effective irradiance is dependent on the relative effectiveness of the relevant action spectrum in the UV-A waveband. In contrast to the total UV, the diffuse UV and diffuse biologically effective irradiances are reduced in a sun-normal compared with a horizontal orientation by a factor ranging from 0.70±0.05 to 0.76±0.03.

Details

Title: Horizontal and sun-normal spectral biologically effective ultraviolet irradiances
Authors: A V Parisi (Author) - University of Southern Queensland
Michael G Kimlin (Author) - University of Southern Queensland
Publication details: Journal of Photochemistry and Photobiology B: Biology, Vol.53(1-3), pp.70-74
Publisher: Elsevier BV
Date published: 1999
DOI: 10.1016/S1011-1344(99)00128-1
ISSN: 1011-1344
Copyright note: Copyright © 1999 Elsevier BV. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ The final version is available at http://www.journals.elsevier.com/
Organisation Unit: University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy
Language: English
Record Identifier: 99449949302621
Output Type: Journal article

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