Heterogeneous Atmospheric Chemistry: Modeling Tropospheric Processes and Effects

非均相大气化学：模拟对流层过程和影响

• 批准号: 9216646
• 负责人: Richard Turco
• 金额: $ 49.5万
• 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: 1993
• 资助国家: 美国
• 起止时间: 1993-08-15 至 1997-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9216646&HistoricalAwards=false
• 关键词: Heterogeneous; Atmospheric; Chemistry; Modeling; Tropospheric

92166646 Turco This research project will continue the establishment of a comprehensive modeling capability for tropospheric heterogenous chemical processes and effects. A hierarchy of models will be developed to study systematically the chemical phenomena occurring on aerosol and cloud particles. The models will treat the basic physical and chemical processes of gas-particles. The models will treat the basic physical and chemical processes of gas-particle interactions, which will be calibrated using laboratory and field data. The heterogenous physics and chemistry models will be coupled to models that simulate atmospheric dynamics (and radiative transfer), allowing applications to problems including the evolution of sulfate aerosols in the marine boundary layer, the chemistry that occurs on ice in cirrus clouds, and the relationship of atmospheric chemistry that occurs on ice in cirrus clouds, and the relationship of atmospheric chemistry to cloud radiative effects. These models will be unique in several respects. They will be based on fundamental processes -- for example, nucleation and surface adsorption -- to achieve more realistic mechanistic treatments of heterogenous processes than are presently used. The models will be more quantitative in defining coupled physical and chemical processes, and will be designed for integration into comprehensive tropospheric chemistry simulations. This research program emphasizes model development and student training in atmospheric chemistry and climate.

92166646 Turco 该研究项目将继续建立对流层异质化学过程和效应的综合建模能力。 将开发一系列模型来系统地研究气溶胶和云颗粒上发生的化学现象。 该模型将处理气体粒子的基本物理和化学过程。 这些模型将处理气体-粒子相互作用的基本物理和化学过程，并将使用实验室和现场数据进行校准。 异质物理和化学模型将与模拟大气动力学（和辐射传输）的模型相结合，允许应用到以下问题：海洋边界层中硫酸盐气溶胶的演化、卷云中冰上发生的化学反应、卷云中冰上发生的大气化学关系以及大气化学与云辐射效应的关系。 这些模型在几个方面都是独一无二的。 它们将基于基本过程（例如成核和表面吸附），以实现比目前使用的多相过程更现实的机械处理。 这些模型将更加定量地定义耦合的物理和化学过程，并将设计用于集成到全面的对流层化学模拟中。 该研究计划强调大气化学和气候方面的模型开发和学生培训。