Annual variation of the angular distribution of the UV beneath public shade structures
Article
Article Title | Annual variation of the angular distribution of the UV beneath public shade structures |
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ERA Journal ID | 2243 |
Article Category | Article |
Authors | Turnbull, David J. (Author) and Parisi, A. V. (Author) |
Journal Title | Journal of Photochemistry and Photobiology, B: Biology |
Journal Citation | 76 (1-3), pp. 41-47 |
Number of Pages | 7 |
Year | 2004 |
Publisher | Elsevier |
Place of Publication | Switzerland |
ISSN | 1011-1344 |
1873-2682 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.jphotobiol.2004.07.006 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S1011134404000983 |
Abstract | [Abstract]: Local governments provide many shade structures at parks and sporting ovals for public use. However, the question remains of how effective are public shade structures at reducing biologically effective UV radiation throughout the year? Broadband measurements of the angular distribution of scattered UV beneath three specific public shade structures was conducted for relatively clear skies and for a solar zenith angle (SZA) ranging from 13 to 76 degrees. The ultraviolet protection factors (UPF) for the shade structures ranged from 18.3 to 1.5 for an increasing SZA. Measurements showed that the horizontal plane received the highest SUV levels from the SZA of 28 to 75, 42 to 76, and 50 to 76 degrees for the small, medium and large structures respectively. This was due to the angle of the sun causing the shade created by the shade structure to be outside the structure. For the small shade structure, the measurements directed to the west were the highest levels in the shade after approximately 28 degrees. For the medium and large shade structures, the measurements directed to the west and south were the highest levels in the shade after roughly 42 and 50 degrees respectively. |
Keywords | Diffuse, Angular, UV, Shade structures, Protection factor |
ANZSRC Field of Research 2020 | 519999. Other physical sciences not elsewhere classified |
511099. Synchrotrons and accelerators not elsewhere classified | |
370106. Atmospheric radiation | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Centre for Astronomy, Solar Radiation and Climate |
https://research.usq.edu.au/item/9xw0q/annual-variation-of-the-angular-distribution-of-the-uv-beneath-public-shade-structures
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