Meteorology: Understanding the Atmosphere Ackerman and Knox
UV RadiationUltraviolet radiation (or UV) is electromagnetic energy with wavelengths between .2 and .4 microns. The sun emits UV radiation as well as radiant energy at other wavelengths, such as the visible. UV light has more energy than the visible light emitted by the sun. UV radiation has been classified as three bands or types, based on the wavelength of light:
Your skin and UV Radiation
Exposing your skin to ultraviolet radiation stimulates melanin-producing cells. With increasing amounts of melanin you skin darkens. This tanning provides a protection against UV radiation damage. Prolonged exposure to UV radiation causes the skin to loss its resiliency and over time your skin will begin to look like leather. UV radiation can also activate a cancerous transformation of skin cells.