Horizontal and sun normal spectral biologically effective ultraviolet irradiances

Parisi, Alfio and Kimlin, Michael G. (1999) Horizontal and sun normal spectral biologically effective ultraviolet irradiances. Journal of Photochemistry and Photobiology B: Biology, 53 (1-3). pp. 70-74. ISSN 1011-1344

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Abstract

[Abstract]: This paper has determined the dependence of the spectral biologically effective solar UV irradiance on the orientation of the receiver with respect to the sun for relatively cloud free days at a sub-tropical Southern Hemisphere latitude for the solar zenith angle range of 35o to 64o. For the UV and biologically effective irradiances, the sun normal to horizontal ratio for the total UV ranged from 1.18+-0.05 to 1.27+-0.06. The sun normal to horizontal ratio for biologically effective irradiance was dependent on the relative effectiveness of the relevant action spectrum in the UVA waveband. In contrast to the total UV, the diffuse UV and diffuse biologically effective irradiances were reduced in a sun normal compared to a horizontal orientation by a factor ranging from 0.70+-0.05 to 0.76+-0.03.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Deposited in accordance with the copyright policy of the publisher.
Depositing User: Assoc Prof Alfio Parisi
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 11 Oct 2007 00:35
Last Modified: 02 Jul 2013 22:36
Uncontrolled Keywords: UV, solar UV, sun normal radiation, diffuse, erythema, melanoma, UVA, DNA, eye damage
Fields of Research (FOR2008): 02 Physical Sciences > 0299 Other Physical Sciences > 029999 Physical Sciences not elsewhere classified
02 Physical Sciences > 0299 Other Physical Sciences > 029904 Synchrotrons; Accelerators; Instruments and Techniques
04 Earth Sciences > 0401 Atmospheric Sciences > 040103 Atmospheric Radiation
Identification Number or DOI: doi: 10.1016/S1011-1344(99)00128-1
URI: http://eprints.usq.edu.au/id/eprint/1129

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