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arXiv · 2104.02195

The Ultraviolet Index is well estimated by the terrestrial irradiance at 310nm

Peter D. Kaplan·Emmanuel L. P. Dumont
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Abstract

Ultraviolet (UV) exposure significantly contributes to non-melanoma skin cancer. In the context of health, UV exposure is the product of time and the UV Index (UVI), a weighted sum of the irradiance I(lambda) over all wavelengths from lambda = 250 to 400nm. In our analysis of the United States Environmental Protection Agency's UV-Net database of over four-hundred thousand spectral irradiance measurements taken over several years, we found that the UVI is well estimated by UVI = 77 I(310nm). To better understand this result, we applied an optical atmospheric model of the terrestrial irradiance spectra and found that it applies across a wide range of conditions.

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Peter D. Kaplan, Emmanuel L. P. Dumont. 2021-04-06. The Ultraviolet Index is well estimated by the terrestrial irradiance at 310nm. https://arxiv.org/abs/2104.02195

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