Cloud cover and horizontal plane eye damaging solar UV exposures
Article
Article Title | Cloud cover and horizontal plane eye damaging solar UV exposures |
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ERA Journal ID | 1968 |
Article Category | Article |
Authors | Parisi, A. V. (Author) and Downs, N. (Author) |
Journal Title | International Journal of Biometeorology: the description, causes, and implications of climatic change |
Journal Citation | 49, pp. 130-136 |
Number of Pages | 7 |
Year | 2004 |
Publisher | Springer |
Place of Publication | Germany |
ISSN | 0020-7128 |
1432-1254 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s00484-004-0213-7 |
Web Address (URL) | http://www.springerlink.com/openurl.asp?genre=article&id=doi:10.1007/s00484-004-0213-7 |
Abstract | The spectral UV and the cloud cover were measured at intervals of 5 min with an integrated cloud and spectral UV measurement system at a sub-tropical Southern Hemisphere site for a 6-month period and solar zenith angle (SZA) range of 4.7 degrees to approximately 80 degrees. The solar UV spectra were recorded between 280 and 400 nm in 0.5 nm increments and weighted with the action spectra for photokeratitis and cataracts in order to investigate the effect of cloud cover on the horizontal plane biologically damaging UV irradiances for cataracts (UVBEcat) and photokeratitis (UVBEpker). Eighty five percent of the recorded spectra produced a measured irradiance to a cloud free irradiance ratio of 0.6 and higher while 76% produced a ratio of 0.8 and higher. Empirical non-linear expressions as a function of SZA have been developed for all sky conditions to allow the evaluation of the biologically damaging UV irradiances for photokeratitis and cataracts from a knowledge of the unweighted UV irradiances. |
Keywords | Ultraviolet, Cloud, Cataract, Photokeratitis, Spectral |
ANZSRC Field of Research 2020 | 350505. Occupational and workplace health and safety |
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/9x73q/cloud-cover-and-horizontal-plane-eye-damaging-solar-uv-exposures
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