Ultraviolet radiation Electromagnetic radiation of shorter wavelength than visible radiation but longer than x-rays; roughly, radiation in the wavelength interval from 10 to 4000 angstroms.
Ultraviolet Index
This index provides important information to help you plan your outdoor activities in ways that prevent overexposure to the sun's rays.
Ultraviolet Radiation The energy range just beyond the violet end of the visible spectrum.
Ultraviolet Radiation: Ultraviolet radiation (UV) is one form of radiant energy coming from the sun. The sun emits a range of energy known as the electromagnetic spectrum.
Ultraviolet Radiation (PDF file requires Acrobat Reader)
Australians experience the highest rates of skin cancer in the world. A tan may look healthy, but if it's not your natural skin colour then you've got poor sun protection.
Ultraviolet Index - permalink - collapse
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This index provides important information to help you plan your outdoor activities in ways that prevent overexposure to the sun's rays.
ULTRAVIOLET
Electromagnetic radiation that has a wavelength shorter than visible light and longer than x-rays.
Ultraviolet Radiation - radiation having a wavelength shorter than wavelengths of visible light and longer than those of X rays ...
Ultraviolet radiation
Electromagnetic radiation with wavelengths shorter than visible light, but longer than x-rays. Exposure to too much UV radiation can cause skin cancer.
Unsettled ...
Ultraviolet Radiation: Electromagnetic radiation with wavelengths between approximately .2 to .4 microns.
Updraft: A current of air that has a marked upward vertical motion. Updrafts keep cloud particles suspended in the air.
Ultraviolet (UV) (or Ultraviolet Radiation) - Ultraviolet radiation from the sun plays a role in the formation of the ozone layer by acting as a catalyst for a chemical reaction that breaks apart oxygen molecules which then recombine to form ...
Ultraviolet radiation Electromagnetic radiation with a wavelength between 0.1 and 0.4 micrometers.
Wall cloud An area of rotating clouds that extends beneath a severe thunderstorm and from which a funnel cloud may appear.
Ultraviolet radiation Electromagnetic radiation with wave-lengths longer than X-rays but shorter than visible light.
Upslope fog Fog formed as moist, stable air flows upward over a topographic barrier.
Ultraviolet radiation Short-wave, energetic electromagnetic radiation emitted by the sun. Much of the solar ultraviolet radiation is absorbed in the stratosphere, where it is involved in the formation and destruction of ozone.
Extreme Ultraviolet (EUV)
A portion of the electromagnetic spectrum from approximately 100 to 1000 angstroms.
Extremely Low Frequency (ELF) ...
ULTRAVIOLET - Electomagnetic energy between the visible light and x-ray frequencies. It is invisible and often activates the production of melanin in human skin as well as vitamin D.
It is a very strong absorber of ultraviolet radiation, and the presence of the ozone layer in the upper atmosphere provides an ozone shield that prevents dangerous radiation from reaching the earth's surface and allows the existence of life in its ...
A powerful oxidizing agent that is considered a pollutant in the lower troposphere but an essential chemical in the stratosphere where it protects the earth from high-energy ultraviolet radiation from the sun.
The stratosphere is layered in temperature because it is heated from above by absorption of ultraviolet radiation from the Sun.
The layer of ozone that begins approximately 15 km above Earth and thins to an almost negligible amount at about 50 km, shields the Earth from harmful ultraviolet radiation from the sun.
The portion of the spectrum that the human eye can detect is called visible light, between the longer infrared waves and the shorter ultraviolet waves.
Flares produce enhanced emission at radio frequencies and in the ultraviolet and x-ray spectral regions as well. They may also produce increased particle emission, often with ions of cosmic ray energies.
Upper Level Low: An area of cold air aloft rotating counter-clockwise.
UV Rays: (UV) Ultraviolet Radiation: Shortwave electromagnetic radition emitted by the Sun.
UV Rays: (UV) Ultraviolet Radiation: Bad between 10am and 2pm for sunbathing.
Ozone - A form of oxygen that has a weak chlorine odor. Ozone heats the upper atmosphere by absorbing ultraviolet from sunlight. In the troposphere, ozone is a pollutant, but in the stratosphere it filters out harmful ultraviolet radiation.
An unstable oxygen compound that is a pollutant at ground level, but that absorbs deadly ultraviolet rays in the stratosphere.
Ozone Hole
A thinning of the ozone layer over Antarctica and beyond which occurs each spring.
It acts as a filtering mechanism against incoming ultraviolet radiation. It is located between the troposphere and the stratosphere, around 9.5 to 12.5 miles (15 to 20 kilometers) above the earth's surface.
ozone: gaseous form of oxygen that constitutes less than one part per million of the gases in the atmosphere, yet absorbs most of the ultraviolet radiation which has been proven to be harmful to humans as well as other life forms on Earth.
Shortwave radiation: a term used to describe the radiant energy emitted by the sun in the visible and near-ultraviolet wavelengths (between about 0.1 and 2 micrometers). Compare longwave radiation.
OZONE: A form of oxygen containing 3 molecules, usually found in the stratosphere, and responsible for filtering out much of the sun's ultraviolet radiation.
PACIFIC HIGH: A semipermanent anticyclone located in the Eastern North Pacific.
ozone- a gas composed of three oxygen atoms that forms a thin diffuse layer in the upper atmosphere. This layer absorbs harmful ultraviolet rays from the sun and also prevents heat loss from Earth.
Its production results from photochemical process involving ultraviolet radiation. Because it absorbs harmful radiation at those heights, it is a very beneficial gas.
Ozone shield Stratospheric ozone layer, giving protection to the Earth's surface due to intense absorption of harmful solar ultraviolet radiation by the gas.
Ozone Shield
Protection given to the Earth's surface by the stratospheric ozone layer due to intense absorption of solar ultraviolet radiation by the gas.
ozone—An unstable form of oxygen; heaviest concentrations are in the stratosphere; corrosive to some metals; absorbs most ultraviolet solar radiation.
P ...
Ozone - A form of oxygen in which the molecule is made of 3 atoms instead of the usual two. Ozone is usually found in the stratosphere, and responsible for filtering out much of the sun's ultraviolet radiation. It is also a primary component of smog.
based on reacting airborne carbonyls with 2,4-dinitrophenylhydrazine (2,4-DNPH) coated on an adsorbent cartridge followed by separation and analysis of the hydrazone derivative by high performance liquid chromatography (HPLC) with ultraviolet (UV) ...
space or material media; (2) energy propagated through space or through material media in the form of an advancing disturbance in electric and magnetic fields (e.g., visible light, x-rays, microwaves, radio waves, infrared radiation, ultraviolet ...
ozone is located in a natural layer far above the surface of the globe, in a frigid region of the atmosphere known as the stratosphere. Here in this outer region it protects the earth and its inhabitants from the harmful effects of ultraviolet ...
In the statosphere, it occurs naturally and it provides a protective layer shielding the Earth from ultraviolet radiation and subsequent harmful health effects on humans and the environment.
Shortwave RadiationIn solar-terrestrial terms, shortwave radiation is a term used to describe the radiant energy emitted by the sun in the visible and near-ultraviolet wavelengths (between about 0.1 and 2 micrometers).
Ozone is usually found in the stratosphere, and responsible for filtering out much of the sun's ultraviolet radiation. It is also a primary component of smog.Ozone holeA thinning of the ozone layer over Antarctica, which occurs each spring.
 See also: Radiation, Atmosphere, Surface, Air, Light
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