Nonlinear behavior on an ozone photochemical system in the stratosphere |
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Authors: | Chunhong Liu Peicai Yang Qingcun Zeng |
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Affiliation: | (1) Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029 Beijing, China |
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Abstract: | A nonlinear box system describing ozone photochemistry in the stratosphere is presented. Influences of pollutants, such as odd chlorine (Clx) and odd nitrogen (NOx) discharged by human activities, on photochemical states of the system are investigated in detail. The results show that the solutions of the box system constitute a ‘cusp’ catastrophe manifold in the state-parameter space. An increase of about 30% for Clx source strength or a decrease of about 30% for NOx source strength from their current level may lead to catastrophic transition and results in a reduction of ozone concentration about 50 times. Project supported by the National Natural Science Foundation of China and Laboratory for Aeronomy and Global Environmental Observation of IAP. |
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Keywords: | ozone photochemistry nonlinear system multiequilibrium catastrophe |
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