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Geography Categories
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| Definition Of: |
ultraviolet (UV)
Electromagnetic radiation with wavelengths between that of visible violet light and X-rays; it ranges from 400 to 4 nanometers. Ultraviolet is subdivided into near (NUV) 400 to 300 nanometers, far (FUV) 300 to 200 nanometers, extreme (XUV) 200 to 100 nanometers, and vacuum (VUV) 100 to 4 nanometers. Most of the potentially hazardous UV radiation emitted by the Sun is absorbed by the ozone layer. [See also radiation.] updraft A rising air current.
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Meteorology & Weather Dictionary INDEX:
List of Terms: Terms beginning with "A", Page 1 |
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Page Number:
1 2 A: Page 1 of 2.
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