The Development and Validation of a 3-Dimensional Chemical Transport Modle for Combustion Sulfur from North America

北美燃烧硫的三维化学输运模型的开发和验证

• 批准号: 8701289
• 负责人: William Chameides
• 金额: $ 17.37万
• 依托单位: Georgia Tech Research Corporation - GA Tech Research Institute
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-01-15 至 1991-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8701289&HistoricalAwards=false
• 关键词: Development; Validation; Dimensional; Chemical; Transport

One of the major challenges in theoretical research in atmospheric chemistry for the remaining years of this century relates to the development of accurate and reliable models of the chemical and physical processes controlling the trace composition of the atmosphere as well as its temporal and spatial variability. In recognition of this fact, the report from the Global Tropospheric Chemistry Panel of the National Academy of Sciences and the recently completed UCAR report on Global Tropospheric Chemistry: Plane for the U.S. Research Effort identified theoretical studies and modelling as one of five major research efforts needed to be undertaken in atmospheric chemistry. One of the major objectives highlighted for theoretical studies in these reports was the development of a new class of models that can couple meteorological and chemical processes. To provide a realistic simulation of the transport, transformation, and ultimate removal of selected species on a global and/or regional scale. This research project is aimed at the development and validation of a chemical transport model capable of simulation the transport, transformation, and deposition of combustion sulfur from the North American continent. Time-series measurements of radon-222, lead-210, sulfur dioxide and sulfate surface concentrations and wet deposition rates will be used to guide in the development and validation of parameterizations for boundary layer transport, wet and dry removal, and the homogeneous and heterogeneous oxidation of sulfur dioxide to sulfate. These parameterizations will then be used in the Geophysical Fluid Dynamics Laboratory (GFDL) general circulation/transport model to simulate the export and deposition climatology of anthropogenic sulfur produced on the North American continent. Of particular interest will be the fate of the approximately 75% of the North American sulfur emissions which cannot be accounted for in wet deposition over the continent.

理论研究的主要挑战之一是， 大气化学在本世纪余下的岁月里 涉及开发准确可靠的 控制痕量成分的化学和物理过程 大气层及其时空变化 可变性 鉴于这一事实， 美国国家科学院全球对流层化学小组 科学和最近完成的UCAR全球报告 对流层化学：美国研究工作的飞机 将理论研究和建模确定为五个主要领域之一 需要在大气层方面进行研究， 化学. 突出的主要目标之一是 这些报告中的理论研究是一个新的发展， 一类可以耦合气象和化学的模型 流程. 为了提供运输的真实模拟， 改造，并最终清除选定的物种， 全球和/或区域规模。 该研究项目旨在开发和 验证能够模拟的化学传输模式 燃烧的输送、转化和沉积 来自北美大陆的硫磺 时间序列 氡-222铅-210二氧化硫和硫酸盐的测量 表面浓度和湿沉积速率将用于 参数化的制定和验证指南 边界层输送、湿和干的去除，以及 均相和多相氧化二氧化硫， 硫酸盐 然后，这些参数化将用于 地球物理流体动力学实验室（GFDL） 模拟输出和沉积的环流/输送模式 北方人为硫的气候学 美洲大陆。 特别令人感兴趣的是 北美大约75%的硫排放量 这不能用湿沉降来解释， 大陆