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Selected Publication:

Type of publication: Journal Article
Type of document: Full Paper

Year: 2006

Authors: Schmalwieser, AW; Schauberger, G; Erbertseder, T; Janouch, M; Coetzee, GJ; Weihs, P

Title: Sensitivity of erythemally effective UV irradiance and daily exposure to uncertainties in measured total ozone.

Source: Photochem Photobiol. 2006; 83(2):433-443

Authors Vetmeduni Vienna:

Schauberger Günther
Schmalwieser Alois

Vetmed Research Units
University Equine Clinic, Clinical Unit of Equine Surgery
Institute of Physiology, Pathohysiology and Biophysics, Unit of Physiology and Biophysics

Project(s): Solar biologically-effectiv UV radiation

UV exposure of humans and animals

In this study the sensitivity of the erythemally effective radiation to uncertainties in operationally measured total ozone content of the atmosphere (TOC) was estimated. For this, daily operational TOC measurements from different instruments were applied covering the period from 1997 to 1999. Measurements were gained from space by Earth Probe Satellite, Earth Remote Sensing satellite/Global Ozone Monitoring Experiment and Operational Vertical Sounder and from the ground by Dobson and Brewer spectrophotometers for the locations of Hradec Kralove (Czech Republic, 50 degrees N), Nairobi (Kenya, 1 degrees S) and Springbok (Republic of South Africa, 30 degrees S). The values were used as input parameter to model calculations of erythemally effective irradiance and daily radiant exposure. The differences due to the use of TOC from different sources were analyzed with respect to the Ultraviolet Index (UVI). The UVI was introduced as a tool for sun protection and health care. Therefore, it is of special importance to know the restriction of accuracy. As a tool of health care, the maximum uncertainties are of interest and are described in using the 95%-percentile and the maximum differences. This study shows that differences, i.e. uncertainties (95%-percentile) are in the order of 1 UVI. Independently on the location, however, extreme differences may overstep 3 UVI. For the daily dose the 95%-percentile is around 7.5 UVI hours (UVIh) but differences higher than 20 UVIh were also found.

Keywords Pubmed: Atmosphere/analysis
Czech Republic
Sensitivity and Specificity
South Africa
Ultraviolet Rays/adverse effects*

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