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--UV Index. 6:20PM Sunset. 6 mph F 10 km/h C Wind. 66 ... USA TODAY 1 day ago How much snow fell near you? Use this interactive map to track snowfall accumulation Wednesday.
Sunburn effect (as measured by the UV index) is the product of the sunlight power spectrum (radiation intensity) and the erythemal action spectrum (skin sensitivity) across the range of UV wavelengths. [9] [10] The UV index is a number linearly related to the intensity of sunburn-producing UV radiation at a given point on the Earth's surface.
1 UV Index. 5:31PM Sunset. ... Snowfall maps, current alerts, weather warnings, and more. ... USA TODAY Sports. TCU women's basketball star Sedona Prince faces multiple abuse, sexual assault ...
The WHO-standard ultraviolet index is a widely publicized measurement of total strength of UV wavelengths that cause sunburn on human skin, by weighting UV exposure for action spectrum effects at a given time and location. This standard shows that most sunburn happens due to UV at wavelengths near the boundary of the UVA and UVB bands.
Sunburn effect (as measured by the UV Index) is the product of the sunlight spectrum at the Earth's surface (radiation intensity) and the erythemal action spectrum (skin sensitivity). Long-wavelength UV is more prevalent, but each milliwatt at 295 nm produces almost 100 times more sunburn than at 315 nm.
--UV Index. 5:23PM Sunset. ... USA TODAY 18 minutes ago 8 dead, 1,000 rescued from Kentucky flooding as extreme weather sweeps nation; more to come ... Live radars, alert maps, snow and rain ...
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The first map at right shows levels of UVB radiation in June 2008, expressed in Vitamin D Equivalents. [26] UV map (Vitamin D Equivalents) Using satellite data, measurements from the European Space Agency produce similar maps expressed in units of the widely followed UV Index, for locations around the world. [27]