Dynamical component of seasonal and year-to-year changes in Antarctic and global ozone
The dynamics of the ozone concetration components of the Antarctic ozone hole as related to seasonal and year-to-year temperature changes in August, September, October, and November during the 1979-1985 period is studied using a zonally averaged model in which all transport fields are fixed by input...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19890026972 2023-05-15T13:41:01+02:00 Dynamical component of seasonal and year-to-year changes in Antarctic and global ozone Tung, Ka Kit Yang, HU Unclassified, Unlimited, Publicly available Oct 20, 1988 http://ntrs.nasa.gov/search.jsp?R=19890026972 unknown http://ntrs.nasa.gov/search.jsp?R=19890026972 Accession ID: 89A14343 Copyright Other Sources 46 Journal of Geophysical Research; 93; 12537-12 1988 ftnasantrs 2012-02-15T17:55:58Z The dynamics of the ozone concetration components of the Antarctic ozone hole as related to seasonal and year-to-year temperature changes in August, September, October, and November during the 1979-1985 period is studied using a zonally averaged model in which all transport fields are fixed by input temperature data. The results suggest that, prior to 1984, both the seasonal and year-to year variability of the zonal-mean Antarctic ozone minimum and the surrounding maximum can be accounted for by temperature dynamics without invoking changes in chemical composition (e.g., chlorine content) or special chemistry. The same dynamical mechanism also accounts for the good simulation of the observed seasonal and latitudinal structure of column ozone in other parts of the world. However, chemical depletion of ozone may have become more important after 1984. The model also appears to underpredict the September ozone decline in years, leading to an underprediction of the recent minimum values in the Antarctic ozone hole. Other/Unknown Material Antarc* Antarctic NASA Technical Reports Server (NTRS) Antarctic The Antarctic |
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NASA Technical Reports Server (NTRS) |
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46 Tung, Ka Kit Yang, HU Dynamical component of seasonal and year-to-year changes in Antarctic and global ozone |
topic_facet |
46 |
description |
The dynamics of the ozone concetration components of the Antarctic ozone hole as related to seasonal and year-to-year temperature changes in August, September, October, and November during the 1979-1985 period is studied using a zonally averaged model in which all transport fields are fixed by input temperature data. The results suggest that, prior to 1984, both the seasonal and year-to year variability of the zonal-mean Antarctic ozone minimum and the surrounding maximum can be accounted for by temperature dynamics without invoking changes in chemical composition (e.g., chlorine content) or special chemistry. The same dynamical mechanism also accounts for the good simulation of the observed seasonal and latitudinal structure of column ozone in other parts of the world. However, chemical depletion of ozone may have become more important after 1984. The model also appears to underpredict the September ozone decline in years, leading to an underprediction of the recent minimum values in the Antarctic ozone hole. |
format |
Other/Unknown Material |
author |
Tung, Ka Kit Yang, HU |
author_facet |
Tung, Ka Kit Yang, HU |
author_sort |
Tung, Ka Kit |
title |
Dynamical component of seasonal and year-to-year changes in Antarctic and global ozone |
title_short |
Dynamical component of seasonal and year-to-year changes in Antarctic and global ozone |
title_full |
Dynamical component of seasonal and year-to-year changes in Antarctic and global ozone |
title_fullStr |
Dynamical component of seasonal and year-to-year changes in Antarctic and global ozone |
title_full_unstemmed |
Dynamical component of seasonal and year-to-year changes in Antarctic and global ozone |
title_sort |
dynamical component of seasonal and year-to-year changes in antarctic and global ozone |
publishDate |
1988 |
url |
http://ntrs.nasa.gov/search.jsp?R=19890026972 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19890026972 Accession ID: 89A14343 |
op_rights |
Copyright |
_version_ |
1766144475089862656 |