Modeling for Forecasting and Analysis of Megacity Impacts on Regional and Global Environments-Mexico City Pollution Outflow Field Campaign (MIRAGE-Mex)

特大城市对区域和全球环境影响的预测和分析建模 - 墨西哥城污染外流现场活动 (MIRAGE-Mex)

• 批准号: 0511803
• 负责人: Luisa Molina
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0511803&HistoricalAwards=false
• 关键词: Modeling; Forecasting; Analysis; Megacity; Impacts

This award will provide funding for meteorological support for the Megacity Impacts on Regional and Global Environments-Mexico City Pollution Outflow (MIRAGE-Mex) field campaign to support campaign planning and execution. The objective of the MIRAGE-Mex campaign is to improve our understanding of the impacts of the Mexico City Metropolitan Area pollution plume, to study the gas phase reactivity in the urban-regional-global transition, analyze the physical and chemical evolution of aerosols and their radiative properties, and study gas-aerosol interactions. This project will contribute towards these goals by forecasting the evolution of the plume and to analyze the meteorological conditions during the experiment. The project will use MM5 (Fifth-Generation Mesoscale Model), CAMx, and FLEXPART models. Specific tasks will include: Analysis of plume dispersion from the Mexico City basin; investigation of residence times, mixing processes, slope flows and urban heat island flow to determine the initial conditions necessary for analyzing regional export and global transport; development of advanced methods for model evaluation for conditions of weak and variable wind flow, the development of improved inputs for the meteorological Land Surface Model. In addition, methods will be developed for source identification based on particle trajectories.This project will provide educational opportunities for a graduate student and a post-doctoral researcher, and provide a central element for a field program aimed at a very important topic regarding the interactions between atmospheric composition, in particular under conditions influenced by megacity emissions, and climate.

该奖项将为对大型环境和全球环境的大型影响 - 墨西哥城市污染流出（Mirage-Mex）现场活动提供资金，以支持竞选计划和执行。 Mirage-Mex运动的目的是提高我们对墨西哥城都会区污染羽流的影响的理解，以研究城市区域 - 全球变化中的气相反应性，分析气溶胶及其辐射特性的物理和化学演化，并研究煤气溶质剂相互作用。该项目将通过预测羽流的演变并在实验过程中分析气象条件来为这些目标做出贡献。该项目将使用MM5（第五代中尺度模型），CAMX和FlexPart模型。具体任务将包括：分析墨西哥城市盆地的羽流分散；研究停留时间，混合过程，坡度流动和城市热岛流量，以确定分析区域出口和全球运输所需的初始条件；开发用于弱风流和可变风流条件的模型评估的高级方法，改进了气象陆地表面模型的投入的发展。此外，将开发基于粒子轨迹的来源识别方法。本项目将为研究生和博士后研究人员提供教育机会，并为针对现场计划提供了一个旨在针对大气组成之间相互作用的非常重要主题的核心元素，特别是受到大气层影响的条件，受到了大气的影响，受到了大气的影响。