Collaborative Research: Aerosol Impacts on the Regional and Global Environment

合作研究：气溶胶对区域和全球环境的影响

• 批准号: 0511769
• 负责人: William Arnott
• 金额: $ 7.5万
• 依托单位: Board of Regents, NSHE, obo University of Nevada, Reno
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-10-01 至 2008-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0511769&HistoricalAwards=false
• 关键词: Collaborative; Research; Aerosol; Impacts; Regional

This project will provide measurements of the optical and chemical properties of aerosol particles on the NSF C-130 aircraft during the 2006 Megacities Impacts on Regional and Global Environments (MIRAGE) Campaign to be conducted in Mexico City and the Intercontinental and Megacity Pollution Experiment (IMPEX). The instrument suite includes a Condensation Nuclei Counter (CNC), a Single Particle Soot Photometer (SP-2) to determine black carbon mass, aerosol size, and organic coatings, a Photoacoustic Absorption and Scattering Spectrometer (PASS) to measure aerosol scattering and absorption, an aerosol impaction collector for post-flight analysis using Fourier-Transform Infrared Spectroscopy (FT-IR) and electron microscopy, which will provide chemical information. In addition, during the MIRAGE project, aerosol measurements will be conducted at a ground-based site downwind of Mexico City.The comprehensive data obtained on aerosol properties will be used to observe the transport and transformation of the aerosols in the outflow region of a megacity, and air masses that have undergone long-range transport across the Pacific. The data will be used to validate chemical transport models. This will provide new insights on the effect of pollutant emissions on the regional and global tropospheric composition and its effect on climate.This project will enhance collaborations between U.S. and Mexican scientists from a number of institutions, and will provide educational opportunities for several graduate students.

该项目将在2006年在墨西哥城开展的“特大城市对区域和全球环境的影响”运动以及洲际和特大城市污染实验期间，对NSF C-130飞机上的气溶胶颗粒的光学和化学特性进行测量。该仪器套件包括一个凝聚核计数器（CNC），一个单粒子烟尘光度计（SP-2），以确定黑碳质量，气溶胶大小，和有机涂层，一个光声吸收和散射光谱仪（PASS），以测量气溶胶散射和吸收，气溶胶撞击收集器飞行后分析使用傅里叶变换红外光谱（FT-IR）和电子显微镜，它将提供化学信息。此外，在MINUS项目期间，将在墨西哥城下风处的一个地面站点进行气溶胶测量，所获得的关于气溶胶特性的全面数据将用于观测一个特大城市外流区气溶胶的输送和转化情况，以及经过远距离输送穿越太平洋的气团情况。这些数据将用于验证化学品迁移模型。这将为研究污染物排放对区域和全球对流层组成的影响及其对气候的影响提供新的见解。该项目将加强美国和墨西哥一些机构的科学家之间的合作，并将为几名研究生提供教育机会。