erythemal

Long-term erythemal UV doses at Sodankyla estimated using total ozone, sunshine duration, and snow depth.

Long-term change and variability in surface UV irradiance in the Arctic 2009

The sun exposure that makes our skin a bit red (called 1 minimum erythemal dose) produces the equivalent of 10,000 to 25,000 international units (IU) of vitamin D in our bodies.

Vitamin D: Why You Are Probably NOT Getting Enough and How That Makes You Sick 2010

The sun exposure that makes our skin a bit red (called 1 minimum erythemal dose) produces the equivalent of 10,000 to 25,000 international units (IU) of vitamin D in our bodies.

Mark Hyman, MD: Vitamin D: Why You Are Probably NOT Getting Enough and How That Makes You Sick 2010

Clouds reduce average monthly erythemal UV radiation doses by 20 to 40% (Fig. 5.12) and this attenuation is fairly constant throughout the year.

Long-term change and variability in surface UV irradiance in the Arctic 2009

For example, accounting for the influence of aerosols on the amount of UV radiation reaching the surface of the earth is difficult, as is accounting for sulfur dioxide from volcanic and anthropogenic sources, although Fioletov et al. [27] reported that sulfur dioxide had a negligible influence on erythemal UV irradiance at 12 out of 13 Canadian and Japanese sites.

Long-term change and variability in surface UV irradiance in the Arctic 2009

The action spectrum often used to estimate human health effects is the McKinlay - Diffey erythemal response spectrum [5].

Introduction to Ozone and Ultraviolet Radiation in the Arctic 2009

Spectral UV irradiance in the UV-A and UV-B wavelengths (for total column ozone of 300 DU), the CIE erythemal action spectrum, and biological response curves for total column ozone of 300 and 400 DU.

Introduction to Ozone and Ultraviolet Radiation in the Arctic 2009

On specific days, clouds can reduce daily erythemal UV radiation doses at Tromsø by up to 85%.

Long-term change and variability in surface UV irradiance in the Arctic 2009

The most notable case occurred on 18 April 1997, when the daily erythemal UV radiation dose was 36% higher than the climatological average dose.

Long-term change and variability in surface UV irradiance in the Arctic 2009

Methodology for deriving clearsky erythemal calibration factors for UV broadband radiometers of the U.S.

Long-term change and variability in surface UV irradiance in the Arctic 2009