Collaborative Research: High-resolution Study of Atmosphere, Ice, and Aerosol Interactions in Coastal Antarctica

合作研究：南极洲沿海大气、冰和气溶胶相互作用的高分辨率研究

• 批准号: 1341492
• 负责人: Peter DeCarlo
• 金额: $ 38.88万
• 依托单位: Drexel University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-07-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1341492&HistoricalAwards=false
• 关键词: Collaborative; Research; resolution; Study; Atmosphere

Researchers seek to make high-resolution temporal and size distribution measurements of aerosol composition and size in the Ross Island region, coastal Antarctica. An Aerosol Mass Spectrometer (AMS) will be used to provide quantitative size and chemical mass loading information, in near real-time of non-refractory sub-micron aerosol particles such as sulfate, nitrate, chloride, ammonium, and organic carbon species. Additional measurements will include aerosol sizing with overlapping size ranges from 20 nm to 100 um, and particle into liquid sampling for bulk ionic compositional analysis of larger aerosol particles. Advantages in continuous AMS monitoring of aerosol include being able to observe the episodic nature and short duration of new particle nucleation events, thus capturing the extreme variability of meteorological conditions expected in maritime Antarctica. These aerosol measurements are likely to be of interest to other disciplines. Training of a post-doctoral associate, and research experience for a Polar-TREC participant are allied broader impacts.

研究人员试图对南极洲沿海罗斯岛地区的气溶胶成分和大小进行高分辨率的时间和大小分布测量。将使用气溶胶质谱仪（AMS）近实时地提供非耐火亚微米气溶胶颗粒（如硫酸盐、硝酸盐、氯化物、铵和有机碳物质）的定量尺寸和化学质量负荷信息。额外的测量将包括具有从20 nm到100 um的重叠尺寸范围的气溶胶尺寸测量，以及用于较大气溶胶颗粒的本体离子成分分析的颗粒到液体采样。对气溶胶进行连续的AMS监测的优点包括能够观察到新粒子成核事件的偶发性质和短持续时间，从而捕捉到预期在南极洲海洋的气象条件的极端变化。这些气溶胶测量可能会引起其他学科的兴趣。博士后助理的培训，以及Polar-TREC参与者的研究经验是更广泛的影响。