Diffuse component of solar ultraviolet radiation in tree shade

A V Parisi; Michael G Kimlin; J C F Wong; M Wilson

doi:10.1016/S1011-1344(00)00003-8

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Diffuse component of solar ultraviolet radiation in tree shade

Journal article

Open access

Peer reviewed

Diffuse component of solar ultraviolet radiation in tree shade

A V Parisi, Michael G Kimlin, J C F Wong and M Wilson

Journal of Photochemistry and Photobiology B: Biology, Vol.54(2-3), pp.116-120

2000

DOI: https://doi.org/10.1016/S1011-1344(00)00003-8

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Abstract

diffuse radiation

tree shade

UV-A

The first set of quantitative data of diffuse erythemal UV and UV-A radiation in tree shade at a sub-tropical Southern Hemisphere latitude is presented. Over the summer, approximately 60% of the erythemal UV radiation in tree shade is due to the diffuse component. Similarly, approximately 56% of the UV-A radiation in tree shade is due to the diffuse component. In tree shade these diffuse UV percentages are relatively constant from the morning to noon to afternoon periods. In comparison, in full sun, there is a decrease in the percentage of diffuse UV from morning to noon to afternoon. The exposures to diffuse UV on a horizontal plane in tree shade between 9:00 EST and 15:00 EST are of the order of 4 MED (minimum erythemal dose)and 14 J cm-2 for erythemal UV and UV-A, respectively. The high diffuse UV component in the shade may result in high UV exposures not only to unprotected parts of the body on a horizontal plane, but also in equally high UV irradiances to parts of the body, including the eyes and face, that are not UV protected. (C) 2000 Elsevier Science S.A. All rights reserved.

Details

Title: Diffuse component of solar ultraviolet radiation in tree shade
Authors: A V Parisi (Author) - University of Southern Queensland
Michael G Kimlin (Author) - University of Southern Queensland
J C F Wong (Author) - Queensland University of Technology
M Wilson (Author) - University of Southern Queensland
Publication details: Journal of Photochemistry and Photobiology B: Biology, Vol.54(2-3), pp.116-120
Publisher: Elsevier BV
Date published: 2000
DOI: 10.1016/S1011-1344(00)00003-8
ISSN: 1011-1344
Copyright note: Copyright © 2000 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: 99449826802621
Output Type: Journal article

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Web Of Science research areas: Biochemistry & Molecular Biology; Biophysics

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