Ozone hole and Southern Hemisphere climate change
نویسندگان
چکیده
منابع مشابه
Signatures of the Antarctic ozone hole in Southern Hemisphere surface climate change
1 Roughly 90% of atmospheric ozone is found in the lower stratosphere in the ozone layer. Since about the 1970s, anthropogenic emissions of ozone-depleting gases have led to depletion of ~3–4% of the total overhead ozone averaged over the globe1. The strongest depletion is found over Antarctica during spring, when photochemical processes combine with a unique set of meteorological conditions to...
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The authors report a hypothesis for the dynamical mechanisms responsible for the strengthening of the Southern Hemisphere circumpolar winds from the lower stratosphere to the surface due to the ozone hole. A general circulation model forced by stratospheric ozone depletion representative of the ozone hole period successfully reproduced these observed changes. Investigation of the dynamical char...
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Among the most important aspects of the atmospheric pollution problem are the anthropogenic impacts on the stratospheric ozone layer, the related trends of the total ozone content drop and the solar ultraviolet radiation enhancement at the Earth's surface level. During September 2002, the ozone hole over the Antarctic was much smaller than in the previous six years. It has split into two separa...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2009
ISSN: 0094-8276
DOI: 10.1029/2009gl038671