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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.
--UV Index. 6:20PM Sunset. ... On Today's Date: A Deadly South Georgia Nighttime Tornado Outbreak. Yes, tornadoes can happen any time of year when conditions are favorable, especially in the South
4 UV Index. 6:20PM Sunset. ... On Today's Date: Valentine's 1895 America's 'Most Anomalous Snowstorm' January 2025's Gulf Coast snowstorm was impressive. This 1895 snowstorm, however, was a ...
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.
2 UV Index. 5:34PM Sunset. 7 mph F 11 km/h C Wind. 54 ... USA TODAY 1 day ago Winter wallop again: New snow, ice storm smacking Midwest, East; 90M under alerts.
Get the Moses Lake, WA local weather forecast by the hour and the next 10 days.
The pollen grains reflect UV-beta to shield their chromosomes stored in the pollen from UV-alpha which is important for making sure of reproductive success. [10] The technique of UV coloration has evolved in other species as well for various reasons. Similarly, carnivorous plants reflect and absorb UV to attract prey to it. [10]