Reduced antarctic ozone depletions in a model with hydrocarbon injections.
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 us...
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1991
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ftcdlib:oai:escholarship.org/ark:/13030/qt3vc92918 2023-05-15T13:38:01+02:00 Reduced antarctic ozone depletions in a model with hydrocarbon injections. Cicerone, RJ Elliott, S Turco, RP 1191 - 1194 1991-11-01 application/pdf https://escholarship.org/uc/item/3vc92918 unknown eScholarship, University of California qt3vc92918 https://escholarship.org/uc/item/3vc92918 CC-BY CC-BY Science (New York, N.Y.), vol 254, iss 5035 General Science & Technology article 1991 ftcdlib 2019-12-20T23:53:47Z 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. Article in Journal/Newspaper Antarc* Antarctic University of California: eScholarship Antarctic Austral The Antarctic |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
General Science & Technology |
spellingShingle |
General Science & Technology Cicerone, RJ Elliott, S Turco, RP Reduced antarctic ozone depletions in a model with hydrocarbon injections. |
topic_facet |
General Science & Technology |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Cicerone, RJ Elliott, S Turco, RP |
author_facet |
Cicerone, RJ Elliott, S Turco, RP |
author_sort |
Cicerone, RJ |
title |
Reduced antarctic ozone depletions in a model with hydrocarbon injections. |
title_short |
Reduced antarctic ozone depletions in a model with hydrocarbon injections. |
title_full |
Reduced antarctic ozone depletions in a model with hydrocarbon injections. |
title_fullStr |
Reduced antarctic ozone depletions in a model with hydrocarbon injections. |
title_full_unstemmed |
Reduced antarctic ozone depletions in a model with hydrocarbon injections. |
title_sort |
reduced antarctic ozone depletions in a model with hydrocarbon injections. |
publisher |
eScholarship, University of California |
publishDate |
1991 |
url |
https://escholarship.org/uc/item/3vc92918 |
op_coverage |
1191 - 1194 |
geographic |
Antarctic Austral The Antarctic |
geographic_facet |
Antarctic Austral The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Science (New York, N.Y.), vol 254, iss 5035 |
op_relation |
qt3vc92918 https://escholarship.org/uc/item/3vc92918 |
op_rights |
CC-BY |
op_rightsnorm |
CC-BY |
_version_ |
1766100560922017792 |