The Impact of Aged Boreal Fire Emissions on the Composition of the Remote Midlatitude Lower Free Troposphere, Using Measurements at the PICO-NARE Station

使用 PICO-NARE 站的测量，研究老化的北方火排放对偏远中纬度低层自由对流层组成的影响

• 批准号: 0535486
• 负责人: Richard Honrath
• 金额: --
• 依托单位: Michigan Technological University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-12-15 至 2008-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0535486&HistoricalAwards=false
• 关键词: Impact; Aged; Boreal; Fire; Emissions

This project will assess the impact of biomass burning emissions from boreal forests on the composition of the midlatitude troposphere. This will be accomplished by using measurements of ozone, carbon monoxide, and reactive nitrogen (NOy) from the PICO observatory in the Azores, coupled with trajectory and particle dispersion calculations, and remote sensing data on boreal fires and biomass burning plumes. The goals are to quantify the influence of boreal fires on background (and episodic) ozone concentrations, compare the importance of biomass burning on ozone versus anthropogenic emissions, and study the dependence of ozone enhancements on fire sources, transport pathways from high latitudes to the Azores, and the photochemical history along these pathways. This work will provide further opportunity to utilize the data that have been obtained from the observing station at the top of Mt. Pico, in a remote part of the Atlantic Ocean. This area is far from local sources of pollution, and the free troposphere at Pico is representative of a large swath of the atmosphere over the Atlantic Ocean. The site is ideal for examining the regional and global effects of emissions on the atmosphere, and as a laboratory for studying possible effects of global change. This grant will support the PhD thesis research of two graduate students.

该项目将评估北方森林生物量燃烧排放物对中纬度对流层组成的影响。 这将通过使用亚速尔群岛皮科观测站对臭氧、一氧化碳和活性氮的测量，加上轨迹和粒子扩散计算，以及关于北方火灾和生物质燃烧羽流的遥感数据来实现。 目标是量化北方火灾对背景（和间歇性）臭氧浓度的影响，比较生物质燃烧对臭氧的重要性与人为排放的重要性，并研究臭氧增强对火源、从高纬度到亚速尔群岛的传输路径的依赖性，以及光化学历史。沿着这些路径。这项工作将为利用从山顶观测站获得的数据提供进一步的机会。皮科，在大西洋的一个偏远地区。 这个区域远离当地的污染源，皮科的自由对流层代表了大西洋上空的一大片大气。 该地点是研究排放对大气的区域和全球影响的理想场所，也是研究全球变化可能影响的实验室。这笔赠款将支持两名研究生的博士论文研究。