Global Research on Atmospheric Chemistry and the Environment

全球大气化学与环境研究

• 批准号: 9002893
• 负责人: Michael Prather
• 金额: $ 2.51万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-04-15 至 1992-02-01
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9002893&HistoricalAwards=false
• 关键词: Global; Research; Atmospheric; Chemistry; Environment

Accurate modelling of the global distribution of trace gases in the atmosphere is necessary to understand the sources and sinks (chemical , physical or biological) that control the global budgets of the radiatively and chemically important gases. This effort continues the basic studies in theoretical modeling of the global composition of the atmosphere. First an investigation of how to improve the manner in which the physical / chemical process in global 3-D models (e.g., chemistry, transport and diffusion) are coupled with the high-order numerical methods used in calculating the transport of tracers, will be undertaken. Second, the developments of current research on three-dimensional chemical transport models (CTM) for stratospheric ozone will be used to examine how stratosphere-troposphere exchange controls the abundances of O3 and NOy in the upper troposphere.

微量气体全球分布的精确模拟 了解大气中的污染源和 汇（化学的、物理的或生物的）， 辐射和化学重要气体的预算。 这 努力继续在理论建模的基础研究， 全球大气层的组成。 首先，调查 如何改进物理/化学 全局3-D模型中的处理（例如，化学、运输和 扩散）与所使用的高阶数值方法相结合 在计算示踪剂的运输，将进行。 第二，三维空间的研究进展 平流层臭氧化学传输模型（CTM）将 用来研究平流层-对流层交换如何控制 对流层上部O3和NOy的丰度。