Global impact of the Antarctic ozone hole: Simulations with a 3-D chemical transport model
A study of the Antarctic ozone hole was made with a 3-D chemical transport model using linearized photochemistry for ozone based on observed distribution. The tracer model uses the winds and convection from the GISS general circulation model (8 deg x 10 deg x 23 layers). A 3-year control run of the...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19890005215 2023-05-15T13:35:10+02:00 Global impact of the Antarctic ozone hole: Simulations with a 3-D chemical transport model Prather, Michael J. Garcia, Maria M. Unclassified, Unlimited, Publicly available May 1, 1988 application/pdf http://hdl.handle.net/2060/19890005215 unknown Document ID: 19890005215 Accession ID: 89N14586 http://hdl.handle.net/2060/19890005215 No Copyright CASI ENVIRONMENT POLLUTION NASA, Goddard Space Flight Center, Polar Ozone Workshop. Abstracts; p 216 1988 ftnasantrs 2015-03-15T05:59:46Z A study of the Antarctic ozone hole was made with a 3-D chemical transport model using linearized photochemistry for ozone based on observed distribution. The tracer model uses the winds and convection from the GISS general circulation model (8 deg x 10 deg x 23 layers). A 3-year control run of the ozone distribution is compared with the observed climatology. In two experiments, a hypothetical Antarctic ozone hole is induced on October 1 and on November 1; the tracer model is integrated for 1 year with the standard linearized chemistry. The initial depletion, 90 percent of the O sub 3 poleward of 70 S between 25 and 180 mbar, amounts to about 5 percent of the total O sub 3 in the Southerm Hemisphere. As the vortex breaks down and the hole is dispersed, significant depletions to column ozone, of order 10 D.U., occur as far north as 36 S during Austral summer. One year later, about 25 percent of the original depletion remains, mostly below 100 mbar and poleward of 30 S. Details of the calculations are shown, along with a budget analysis showing the fraction of the hole filled in by photochemistry versus that transported into the troposhere. Other/Unknown Material Antarc* Antarctic NASA Technical Reports Server (NTRS) Antarctic The Antarctic Austral |
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Open Polar |
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NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
ENVIRONMENT POLLUTION |
spellingShingle |
ENVIRONMENT POLLUTION Prather, Michael J. Garcia, Maria M. Global impact of the Antarctic ozone hole: Simulations with a 3-D chemical transport model |
topic_facet |
ENVIRONMENT POLLUTION |
description |
A study of the Antarctic ozone hole was made with a 3-D chemical transport model using linearized photochemistry for ozone based on observed distribution. The tracer model uses the winds and convection from the GISS general circulation model (8 deg x 10 deg x 23 layers). A 3-year control run of the ozone distribution is compared with the observed climatology. In two experiments, a hypothetical Antarctic ozone hole is induced on October 1 and on November 1; the tracer model is integrated for 1 year with the standard linearized chemistry. The initial depletion, 90 percent of the O sub 3 poleward of 70 S between 25 and 180 mbar, amounts to about 5 percent of the total O sub 3 in the Southerm Hemisphere. As the vortex breaks down and the hole is dispersed, significant depletions to column ozone, of order 10 D.U., occur as far north as 36 S during Austral summer. One year later, about 25 percent of the original depletion remains, mostly below 100 mbar and poleward of 30 S. Details of the calculations are shown, along with a budget analysis showing the fraction of the hole filled in by photochemistry versus that transported into the troposhere. |
format |
Other/Unknown Material |
author |
Prather, Michael J. Garcia, Maria M. |
author_facet |
Prather, Michael J. Garcia, Maria M. |
author_sort |
Prather, Michael J. |
title |
Global impact of the Antarctic ozone hole: Simulations with a 3-D chemical transport model |
title_short |
Global impact of the Antarctic ozone hole: Simulations with a 3-D chemical transport model |
title_full |
Global impact of the Antarctic ozone hole: Simulations with a 3-D chemical transport model |
title_fullStr |
Global impact of the Antarctic ozone hole: Simulations with a 3-D chemical transport model |
title_full_unstemmed |
Global impact of the Antarctic ozone hole: Simulations with a 3-D chemical transport model |
title_sort |
global impact of the antarctic ozone hole: simulations with a 3-d chemical transport model |
publishDate |
1988 |
url |
http://hdl.handle.net/2060/19890005215 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic The Antarctic Austral |
geographic_facet |
Antarctic The Antarctic Austral |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
CASI |
op_relation |
Document ID: 19890005215 Accession ID: 89N14586 http://hdl.handle.net/2060/19890005215 |
op_rights |
No Copyright |
_version_ |
1766061939587284992 |