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Articles
Reduced Antarctic Ozone Depletions in a Model with Hydrocarbon Injections
1 Department of Geosciences, University of California, Irvine, CA 92717
Motivated by increased losses of Antarctic stratospheric ozone and by improved understanding of the mechanism, a concept is suggested for action to arrest this ozone loss: injecting the alkanes ethane or propane (E or P) into the Antarctic stratosphere. A numerical model of chemical processes was used to explore the concept. The model results suggest that annual injections of about 50,000 tons of E or P could suppress ozone loss, but there are some scenarios where smaller E or P injections could increase ozone depletion. Further, key uncertainties must be resolved, induding initial concentrations of nitrogen-oxide species in austral spring, and several poorly defined physical and chemical processes must be quantifed. There would also be major difficulties in delivering and distributing the needed alkanes. Submitted on July 3, 1991Accepted on October 7, 1991
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Science. ISSN 0036-8075 (print), 1095-9203 (online)
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