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Global Two-Dimensional Chemistry Model and Simulation of Atmospheric Chemical Composition


doi: 10.1007/s00376-000-0044-3

  • A global two-dimensional zonally averaged chemistry model is developed to study the chemical composition of atmosphere. The region of the model is from 90oS to 90oN and from the ground to the altitude of 20 km with a resolution of 5o×1km. The wind field is residual circulation calculated from diabatic rate. 34 species and 104 chemical and photochemical reactions are considered in the model. The sources of CH4, CO and NOx, which are divided into seasonal sources and non-seasonal sources, are parameterized as a function of latitude and time. The chemical composition of atmosphere was simulated with emission level of CH4, CO and NOx in 1990. The results are compared with observations and other model results, showing that the model is successful to simulate the atmospheric chemical composition and distribution of CH4.
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Manuscript History

Manuscript received: 10 January 2000
Manuscript revised: 10 January 2000
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Global Two-Dimensional Chemistry Model and Simulation of Atmospheric Chemical Composition

  • 1. State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry; Institute of Atmospheric Physics; Chinese Academy of Sciences; Beijing 100029,State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry; Institute of Atmospheric Physics; Chinese Academy of Sciences; Beijing 100029,State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry; Institute of Atmospheric Physics; Chinese Academy of Sciences; Beijing 100029

Abstract: A global two-dimensional zonally averaged chemistry model is developed to study the chemical composition of atmosphere. The region of the model is from 90oS to 90oN and from the ground to the altitude of 20 km with a resolution of 5o×1km. The wind field is residual circulation calculated from diabatic rate. 34 species and 104 chemical and photochemical reactions are considered in the model. The sources of CH4, CO and NOx, which are divided into seasonal sources and non-seasonal sources, are parameterized as a function of latitude and time. The chemical composition of atmosphere was simulated with emission level of CH4, CO and NOx in 1990. The results are compared with observations and other model results, showing that the model is successful to simulate the atmospheric chemical composition and distribution of CH4.

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