CAREER: In Situ Constraints on Nocturnal Nitrogen Oxide Chemistry in Forested and Marine Environments

职业：森林和海洋环境中夜间氮氧化物化学的原位限制

• 批准号: 0846183
• 负责人: Joel Thornton
• 金额: $ 79.82万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-06-15 至 2014-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0846183&HistoricalAwards=false
• 关键词: CAREER; Situ; Constraints; Nocturnal; Nitrogen

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).The research objectives of this project are to elucidate the mechanisms and importance of nocturnal nitrogen oxide chemistry in the polluted marine boundary layer (MBL) and rural forests via field observations, laboratory studies, and modeling. Simultaneous, in situ, measurements of dinitrogen pentoxide (N2O5) and nitryl chloride (ClNO2) concentrations will be made during two MBL field campaigns to develop a detailed understanding of ClNO2 production by N2O5, with special attention paid to ship plume chemistry. In these MBL campaigns, and in an additional campaign in a rural California pine forest, a newly developed, field-deployable apparatus will provide the first direct in situ measurements of N2O5 and NO3 reactivity. Detailed gas-aerosol chemistry box modeling will be performed to test hypotheses of ClNO2 production mechanisms, and to explore the impacts of this chlorine atom source on the chemistry of coastal and remote marine regions.The educational plan aims to inspire and engage University of Washington (UW) undergraduates, Native American high school students, and K-12 teachers in the appreciation and practice of Earth system science. A campaign will take place on Makah tribal lands adjacent to Olympic National Park, in which Makah high school seniors will be partnered with UW undergraduates in the collection and analysis of Puget Sound ship traffic and its connection to air quality. The data will be integrated into inquiry-based analysis exercises for two undergraduate-level atmospheric chemistry courses. The principal investigator will also work with the Olympic Park Institute to develop curriculum materials for use in their K-12 teacher training programs.

该奖项是根据2009年的《美国回收与再投资法》（公法111-5）资助的。该项目的研究目标旨在阐明在受污染的海洋边界层（MBL）和农村森林中通过现场观测，实验室研究，实验室研究和模型建模的夜间氮氧化物化学的机制和重要性。 同时，将在两次MBL现场运动中对原位的测量，对N2O5进行详细了解CLNO2生产，并特别注意船长羽流化学，将对CLNO2生产进行详细的了解。 在这些MBL运动以及在加利福尼亚乡村松树林中的额外运动中，新开发的，可剥离的设备将提供第一个直接直接对N2O5和NO3反应性的现场测量。 将对CLNO2生产机制的假设进行详细的气体化学盒建模，并探讨该氯原子来源对沿海和偏远海洋地区化学的影响。该教育计划旨在激发华盛顿大学（UW）的启发和互动，美国本地高中生的教育，并在地上的教师和K-12的老师和k-12的老师中，并与之互动。 将在与奥林匹克国家公园附近的马卡部落土地上进行一场运动，其中马卡高中的高年级学生将与UW本科生合作，对Puget Sound Shief Shief交通及其与空气质量的联系进行分析。 这些数据将集成到两个本科大气化学课程的基于查询的分析练习中。 首席研究员还将与奥林匹克公园研究所合作开发用于其K-12教师培训计划的课程材料。