A three-dimensional dynamical-chemical model of atmospheric ozone
A three-year integration of a global three-dimensional model including dynamics and simple photochemistry is used to predict ozone. Good agreement with observation is obtained for stratospheric motion patterns, meridional circulations, ozone density as a function of height and latitude, eddy transpo...
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1975
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ftnasantrs:oai:casi.ntrs.nasa.gov:19750058956 2023-05-15T18:02:15+02:00 A three-dimensional dynamical-chemical model of atmospheric ozone Cunnold, D. Alyea, F. Phillips, N. Prinn, R. Unclassified, Unlimited, Publicly available Jan 1, 1975 http://ntrs.nasa.gov/search.jsp?R=19750058956 unknown http://ntrs.nasa.gov/search.jsp?R=19750058956 Accession ID: 75A43028 Copyright Other Sources 46 Journal of the Atmospheric Sciences; 32; Jan. 197 1975 ftnasantrs 2012-02-15T12:19:32Z A three-year integration of a global three-dimensional model including dynamics and simple photochemistry is used to predict ozone. Good agreement with observation is obtained for stratospheric motion patterns, meridional circulations, ozone density as a function of height and latitude, eddy transports of ozone, surface destruction of ozone, and correlations of ozone with other variables. The annual cycle of columnar ozone in high latitudes is present, but at a smaller amplitude than observed. Vertical transport of ozone downward from the main generation level at 30 km is accomplished primarily by small-scale eddy diffusion between 20 and 30 km and again near the ground; large-scale vertical transport dominates in between. The model predicts a secondary maximum in ozone mixing ratio at 45 km somewhat equatorward of the winter polar-night zone. This feature, recently observed from satellite measurements, is thought to be caused by the temperature dependence of reaction rates in the Chapman scheme. The principal deficiency of the model is an underprediction of the spring ozone concentration in high latitudes in the lower stratosphere. Other/Unknown Material polar night NASA Technical Reports Server (NTRS) |
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NASA Technical Reports Server (NTRS) |
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46 Cunnold, D. Alyea, F. Phillips, N. Prinn, R. A three-dimensional dynamical-chemical model of atmospheric ozone |
topic_facet |
46 |
description |
A three-year integration of a global three-dimensional model including dynamics and simple photochemistry is used to predict ozone. Good agreement with observation is obtained for stratospheric motion patterns, meridional circulations, ozone density as a function of height and latitude, eddy transports of ozone, surface destruction of ozone, and correlations of ozone with other variables. The annual cycle of columnar ozone in high latitudes is present, but at a smaller amplitude than observed. Vertical transport of ozone downward from the main generation level at 30 km is accomplished primarily by small-scale eddy diffusion between 20 and 30 km and again near the ground; large-scale vertical transport dominates in between. The model predicts a secondary maximum in ozone mixing ratio at 45 km somewhat equatorward of the winter polar-night zone. This feature, recently observed from satellite measurements, is thought to be caused by the temperature dependence of reaction rates in the Chapman scheme. The principal deficiency of the model is an underprediction of the spring ozone concentration in high latitudes in the lower stratosphere. |
format |
Other/Unknown Material |
author |
Cunnold, D. Alyea, F. Phillips, N. Prinn, R. |
author_facet |
Cunnold, D. Alyea, F. Phillips, N. Prinn, R. |
author_sort |
Cunnold, D. |
title |
A three-dimensional dynamical-chemical model of atmospheric ozone |
title_short |
A three-dimensional dynamical-chemical model of atmospheric ozone |
title_full |
A three-dimensional dynamical-chemical model of atmospheric ozone |
title_fullStr |
A three-dimensional dynamical-chemical model of atmospheric ozone |
title_full_unstemmed |
A three-dimensional dynamical-chemical model of atmospheric ozone |
title_sort |
three-dimensional dynamical-chemical model of atmospheric ozone |
publishDate |
1975 |
url |
http://ntrs.nasa.gov/search.jsp?R=19750058956 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
polar night |
genre_facet |
polar night |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19750058956 Accession ID: 75A43028 |
op_rights |
Copyright |
_version_ |
1766172049706844160 |