Modeling and Analysis of Heterogeneous Chemical Processes in the Atmosphere: The Ozone Hole and Tropospheric Chemistry

大气中异质化学过程的建模和分析：臭氧空洞和对流层化学

• 批准号: 8911836
• 负责人: Richard Turco
• 金额: $ 46.19万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-09-01 至 1992-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8911836&HistoricalAwards=false
• 关键词: Modeling; Analysis; Heterogeneous; Chemical; Processes

The construction and use of models aid the understanding of the real thing. Computer models of the atmosphere lead to an understanding of various processes and their interactions. Furthermore, the results of models can identify parameters that are particularly important and suggest laboratory and field experiments that may clarify uncertainties. As computing capabilities improve, more complex models can be constructed. Models generally grow from detailed box models to one- dimensional (altitude dependence), two-dimensional (altitude and latitude), and three-dimensional (altitude, latitude, and longitude) models in which physical and chemical detail is sacrificed for expanded spatial coverage, but the higher dimensional models are designed to capture the essential features of the lower dimensional models. Most models of atmospheric chemistry have been limited to gas phase chemistry. They ignore the role of clouds and aerosol particles. This project will develop numerical models of atmospheric chemistry to include these multimedia systems. The importance of these processes has been highlighted by the discovery of the Antarctic ozone hole which develops, in part, because of the presence of polar stratospheric clouds. The long-range objective is to develop a three-dimensional photochemical model that includes the most useful features of the cloud/aerosol chemical models.

模型的构建和使用有助于理解 真实的东西 大气层的计算机模型 理解各种过程及其相互作用。 此外，模型的结果可以识别参数， 特别重要，并建议实验室和现场 可以澄清不确定性的实验。 随着计算 能力提高，可以构建更复杂的模型。 模型通常从详细的盒子模型发展到一个- 维（高度依赖性），二维（高度 和纬度），和三维（海拔，纬度， 经度）模型，其中物理和化学细节是 为扩大空间覆盖范围而牺牲，但 三维模型旨在捕捉基本的 低维模型的特征。 大多数大气化学模型都局限于 气相化学 他们忽略了云的作用， 气溶胶粒子 该项目将开发数字模型 包括这些多媒体系统。 这些进程的重要性已得到强调， 南极臭氧洞的发现，部分原因是， 因为极地平流层云层的存在。 的 长期目标是发展一个三维的 光化学模型，包括最有用的特征 云/气溶胶化学模型。