Roughly 90 % of atmospheric ozone is found in the lower strat-osphere in the ozone layer. Since about the 1970s, anthro-pogenic 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 du...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Text |
| Language: | English |
| Published: |
2011
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| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.678.9639 http://web.science.unsw.edu.au/%7Ematthew/Thompson_et_al_Nature_Geo1296.pdf |
| Summary: | Roughly 90 % of atmospheric ozone is found in the lower strat-osphere in the ozone layer. Since about the 1970s, anthro-pogenic 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 greatly increase the effectiveness of ozone-depleting gases, and more than half of the total over-head ozone is destroyed. Characteristics of the resulting Antarctic ozone hole are reviewed in refs 1 and 2, and the identification and attribution of the phenomenon was recently celebrated in a special edition of Nature |
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