NUMERICAL SIMULATION OF OZONE DISTRIBUTIONS AND ITS VARIATION MECHANISM* |
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| Authors: | Ren Chuansen Zhou Xiuji Li Weiliang and Qin Yu |
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| Institution: | Chinese Academy of Meteorological Sciences, Beijing 100081;Chinese Academy of Meteorological Sciences, Beijing 100081;Chinese Academy of Meteorological Sciences, Beijing 100081;Department of Geophysics, Peking University, Beijing 100871 |
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| Abstract: | A 2-D global chemistry-transport model is set up in this paper.The model simulates the atmospheric ozone distributions well with specified dynamical conditions.The analysis of ozone variation mechanism shows that ozone is chemically in quasi-equilibrium except for the polar night region where the variation of ozone concentration is under the control of dynamical processes,that the oxygen atoms which produce ozone are mainly provided by the photolysis of O2 in the upper stratosphere and by the photolysis of NO2 in the lower stratosphere and the troposphere.and that the ozone is destroyed mainly by NOx:the reactions between NOx and O3 and the odd oxygen cycle contribute 80% to more than 90% of the ozone destruction. |
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| Keywords: | ozone ozone variation numerical simulation |
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