Characterization of Atmospheric Organic Aerosol through Integrated Analysis and Modeling of MILAGRO-2006 Multi-platform Measurements

通过 MILAGRO-2006 多平台测量的集成分析和建模表征大气有机气溶胶

• 批准号: 1135141
• 负责人: Luisa Molina
• 金额: $ 33.76万
• 依托单位: Molina Center for Strategic Studies in Energy & the Environment
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-12-15 至 2014-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1135141&HistoricalAwards=false
• 关键词: Characterization; Atmospheric; Organic; Aerosol; through

This award will support studies of organic and other aerosols and their regional impact through the integration of modeling studies with the extensive multi-platform ground-, aircraft- and satellite-based measurements obtained during the 2006 MILAGRO (Megacity Initiative: Local And Global Research Observations) Campaign in the Mexico City Metropolitan Area. An updated comprehensive measurement-based emissions inventory of gases and particulate matter (PM) will be developed and will be used as input to chemical transport models. In turn, the capability of the chemical transport models to reproduce the rich MILAGRO PM and trace gas data sets will be evaluated. Chemical transport modeling studies will be conducted using a modified version of an on-line coupled Weather Research Forecasting Model with Chemistry (WRF-CHEM). A meteorological ensemble technique will be used to investigate the meteorological impacts on PM simulations. The project will address five specific objectives: i) to improve the estimates of gaseous and PM emissions and the meteorological fields; ii) to characterize formation of secondary organic aerosol (SOA) from different emission sources; iii) to assess the impact of biomass burning and biogenic sources on PM; iv) to quantify the relative contribution of anthropogenic vs. natural sources of PM on the regional scale; and v) to investigate the impact of urban aerosols on regional photochemistry and meteorology.The project will provide support for postdoctoral researchers. The results of this study will be of value to the scientific community, but also be used in presentations to Mexican authorities interested in regional air quality.

该奖项将通过将建模研究与2006年米拉格罗（Milagro）（Megacity Initiative：地方和全球研究观察结果）在墨西哥城大都市地区的运动中获得的广泛的多平台地面，基于飞机和卫星的测量来支持对有机和其他气溶胶及其区域影响的研究及其区域影响。将开发出更新的基于综合测量的基于测量的气体和颗粒物（PM）排放清单，并将用作化学传输模型的输入。反过来，将评估化学传输模型再现富含米拉格罗PM和痕量气体数据集的能力。化学传输建模研究将使用化学（WRF-CHEM）的在线耦合天气研究预测模型的修改版本进行。气象合奏技术将用于研究对PM模拟的气象影响。该项目将解决五个具体目标：i）改善气体和PM排放量以及气象场的估计； ii）表征来自不同发射源的次生有机气溶胶（SOA）的形成； iii）评估生物质燃烧和生物源对PM的影响； iv）量化PM在区域尺度上的人为与自然来源的相对贡献； v）研究城市气溶胶对区域光化学和气象学的影响。该项目将为博士后研究人员提供支持。这项研究的结果对科学界具有价值，但也用于向对区域空气质量感兴趣的墨西哥当局的演讲。