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2004
The ozone hole is a recent seasonal phenomenon which corresponds to a significant reduction in the total amount of ozone in the EARTH'S ATMOSPHERE during springtime over Antarctica. Evidence that this phenomenon is caused by human activities through the release into the atmosphere of man-made chlorine and bromine compounds has been building up over the
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The ozone hole is a recent seasonal phenomenon which corresponds to a significant reduction in the total amount of ozone in the EARTH'S ATMOSPHERE during springtime over Antarctica. Evidence that this phenomenon is caused by human activities through the release into the atmosphere of man-made chlorine and bromine compounds has been building up over the
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Promotion Effect of Micro-Hole in Dielectric on Ozone Generation of Dielectric Barrier Discharge
Ozone: Science & EngineeringOzone is widely used in industrial production, disinfection, and pollution control. To improve the ozone generation ability of dielectric barrier discharge (DBD), micro-holes with a diameter of about 50 µm in dielectric were introduced to optimize the ...
Xiaoping Wang +6 more
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Nature, 2010
Jonathan Shanklin, one of the team who discovered the thinning ozone layer over the Antarctic 25 years ago, reflects on lessons learned from a tale of luck, public perception and fast environmental change.
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Jonathan Shanklin, one of the team who discovered the thinning ozone layer over the Antarctic 25 years ago, reflects on lessons learned from a tale of luck, public perception and fast environmental change.
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Another Deep Antarctic Ozone Hole
Science, 1990Again in 1990, drastic depletion of stratospheric ozone over the South Pole has been measured, in August 140 Dobson units, far below the 220 Dobson units typically seen over Antarctica. This extensive destruction of ozone is determined to be brought about by sunshine acting in combination with the chlorine released from chlorofluorohydrocarbons (CFCs ...
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1999
We present an overview of the processes leading to the ozone hole in the lower stratosphere with an emphasis on the role of transport and mixing. It is shown that the polar vortex behaves as a chemical container owing to the existence of a barrier to transport along its edge, only broken by sparse filamentary structures.
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We present an overview of the processes leading to the ozone hole in the lower stratosphere with an emphasis on the role of transport and mixing. It is shown that the polar vortex behaves as a chemical container owing to the existence of a barrier to transport along its edge, only broken by sparse filamentary structures.
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1996
The ozone hole over Antarctica reflects the as yet largest observed perturbation of the stratospheric ozone layer. During this event the ozone layer in an altitude range 14–22 km is significantly depleted with local losses up to 90% and changes in the total ozone column of up to 60%.
Walter Dieminger +2 more
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The ozone hole over Antarctica reflects the as yet largest observed perturbation of the stratospheric ozone layer. During this event the ozone layer in an altitude range 14–22 km is significantly depleted with local losses up to 90% and changes in the total ozone column of up to 60%.
Walter Dieminger +2 more
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Scientific American, 1988
Processes that may be responsible for the thinning in the ozone layer above the South Pole are described. The chlorine catalytic cycle which destroys ozone is described, as are the major types of reactions that are believed to interfere with this cycle by forming chlorine reservoirs.
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Processes that may be responsible for the thinning in the ozone layer above the South Pole are described. The chlorine catalytic cycle which destroys ozone is described, as are the major types of reactions that are believed to interfere with this cycle by forming chlorine reservoirs.
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Science, 1995
The bad news about the Antarctic ozone hole is that it is almost as extensive as the record-setting holes of the past few years. The good news is that a new computer model suggests it will get no worse in the next few years and should start to shrink early in the next century, when restrictions on emissions of ozone-destroying chemicals begin to reduce
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The bad news about the Antarctic ozone hole is that it is almost as extensive as the record-setting holes of the past few years. The good news is that a new computer model suggests it will get no worse in the next few years and should start to shrink early in the next century, when restrictions on emissions of ozone-destroying chemicals begin to reduce
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Physics Education, 2008
Since the mid 1970s, the ozone layer over Antarctica has experienced massive destruction during every spring. In this article, we will consider the atmosphere, and what ozone and the ozone layer actually are. We explore the chemistry responsible for the ozone destruction, and learn about why conditions favour ozone destruction over Antarctica.
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Since the mid 1970s, the ozone layer over Antarctica has experienced massive destruction during every spring. In this article, we will consider the atmosphere, and what ozone and the ozone layer actually are. We explore the chemistry responsible for the ozone destruction, and learn about why conditions favour ozone destruction over Antarctica.
openaire +1 more source