Development of an Aircraft-Borne Instrument for Analysis of the Composition of Semi-Volatile Aerosol Particles and Associated Trace Gas Species

开发用于分析半挥发性气溶胶颗粒和相关痕量气体成分的机载仪器

• 批准号: 9871353
• 负责人: Paul Wennberg
• 金额: $ 12.92万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-09-01 至 2001-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9871353&HistoricalAwards=false
• 关键词: Development; Aircraft; Borne; Instrument; Analysis

This MRI project supports part of the development and construction of an instrument which will provide information on both the composition of atmospheric semi-volatile aerosols particles and the associated gas phase species in the upper troposphere/lower stratosphere region. The development work will be accomplished through a collaboration between the California Institute of Technology, the National Center for Atmospheric Research (NCAR), Georgia Tech, and CDI Corporation. The instrument will be light-weight and autonomously operated on board of an ER-2 research aircraft. The technique of selected ion chemical ionization mass spectroscopy (SICIMS) will be combined with novel virtual impactor inlets to separate the gas phase from the aerosols. Central to this program is the design of a suitable calibration system that can be used during atmospheric observations. Also as part of this program, laboratory studies will be carried out at Caltech to develop and calibrate new ion techniques for detection of atmospherically important species such as peroxynitric acid and ammonia.

该核磁共振项目支持了一种仪器的部分开发和建设，该仪器将提供大气半挥发性气溶胶颗粒组成和对流层上部/平流层下部区域相关气相物质的信息。开发工作将通过加州理工学院、国家大气研究中心（NCAR）、佐治亚理工学院和CDI公司的合作来完成。该仪器重量轻，可在ER-2研究飞机上自主操作。选择离子化学电离质谱（SICIMS）技术将与新型虚拟冲击器入口相结合，以分离气相与气溶胶。该计划的核心是设计一套适用于大气观测的校准系统。同样作为这个项目的一部分，实验室研究将在加州理工学院进行，以开发和校准用于检测大气中重要物种（如过氧硝酸和氨）的新离子技术。