Trace Gases in Arctic Haze: Patterns and Time Variations

北极雾霾中的痕量气体：模式和时间变化

• 批准号: 8821320
• 负责人: Reinhold Rasmussen
• 金额: $ 8.84万
• 依托单位: Oregon Graduate Institute of Science & Technology
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-04-01 至 1991-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8821320&HistoricalAwards=false
• 关键词: Trace; Gases; Arctic; Haze; Patterns

This project is an analysis of trace gases in the arctic atmosphere with the goal of defining the sources of the anthropogenic components in atmospheric pollution episodes that have become known as Arctic Haze, and to determine the nature and sources of precursors of arctic haze. Air samples, taken from a NOAA WP-3 aircraft operating over the Arctic Ocean in the Spring of 1989, will be analyzed for the concentrations of about 30 trace gases. These will include chlorofluorocarbons, bromine- containing gases, light hydrocarbons, nitrous oxide, and carbon monoxide and dioxide. When supplemented with meteorological measurements and supporting data obtained in the major field experiment of which this project is a part, source regions and tajectories can be identified, and when compared to similar observations on previous field experiments, it will be possible to assess the interannual variability in the anthropogenic sources that influence the atmospheric chemistry of the high arctic.

该项目是对北极大气中微量气体的分析，目的是确定被称为北极雾霾的大气污染事件中人为成分的来源，并确定北极雾霾前兆的性质和来源。​这些物质包括氯氟烃、含溴气体、轻烃、氧化亚氮、一氧化碳和二氧化碳。在本项目是主要野外实验的一部分的情况下，辅以气象测量和获得的辅助数据，就可以确定源区域和轨迹，并与以往野外实验的类似观测结果进行比较，就有可能评估影响北极高纬度大气化学的人为源的年际变化。