stratospheric ozone


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stratospheric ozone

[‚strad·ə‚sfir·ik ′ō‚zōn]
(meteorology)
Atmospheric ozone that is relatively concentrated in the lower stratosphere in a layer between 9 and 18 miles (15 and 30 kilometers) above the earth's surface, and plays a critical role for the biosphere by absorbing the damaging ultraviolet radiation with wavelengths 320 nanometers and lower. Also known as ozone layer.
References in periodicals archive ?
Its primary intended use is to determine the stratospheric ozone layer thickness, which is calculated as a function of the relative intensities of the three narrow-band UVB readings utilizing an algorithm programmed into the instrument.
1974: Stratospheric ozone depletion and solar ultraviolet radiation on earth.
In this section, we present the results of preliminary studies about the possible relationship between the surface ozone and the stratospheric ozone measured at El Arenosillo.
This year's Climate and Stratospheric Ozone Protection award winners are showing yet again that when they reduce greenhouse gas emissions, many good things happen," said Kathleen Hogan, director, EPA Climate Protection Partnerships Division.
Bromine is 50 times more efficient than chlorine at destroying stratospheric ozone, and enters the atmosphere primarily as a pesticide called methyl bromide.
But he doesn't understand the science well, saying, for example, "By spraying deodorant at your armpit in your New York apartment" you could be "killing people" by contributing to stratospheric ozone depletion.
Decreasing amounts of stratospheric ozone that partially protects the earth's surface from receiving cancer-producing UV radiation.
A University of California Irvine (UCI) study shows that the world's rice paddies emit methyl halide gases that contribute to stratospheric ozone depletion.
No one disputes that stratospheric ozone recovery is one of the environmental movement's great success stories.
The EPA established the Stratospheric Ozone Protection Awards in 1990 to recognize exceptional leadership, personal dedication and technical achievements in eliminating ozone-depleting substances.
Although the possible destruction of stratospheric ozone had been hinted at in the 1970s, it was not until 1985 that the phenomenon was actually observed.
But 10 to 20 percent of the Sun's "extra" luminosity comes out in the ultraviolet, which stratospheric ozone effectively absorbs.

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