Spectroscopic Studies of Biomass Burning Emissions

生物质燃烧排放物的光谱研究

• 批准号: 9900494
• 负责人: Robert Yokelson
• 金额: $ 28万
• 依托单位: University of Montana
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-07-01 至 2003-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9900494&HistoricalAwards=false
• 关键词: Spectroscopic; Studies; Biomass; Burning; Emissions

Biomass burning is a useful land-management tool, a key component of important agricultural systems, and a source of renewable energy. Biomass burning is also a significant source of atmospheric trace gases and particles. Uncertainty in the initial characteristics and transformations of these emissions is a major limiting factor in models of atmospheric chemistry, radiative transfer, and global climate change. In this project, an airborne Fourier transform infrared (FTIR) spectrometer will be used to measure a wide variety of stable and reactive emissions in biomass burning smoke. Measurements will include: carbon dioxide, carbon monoxide, methane, formaldehyde, 2-hydroxyethanal, methanol, phenol, acetic acid, formic acid, sulfur dioxide, carbonyl sulfide, nitric oxide, nitrogen dioxide, nitrous oxide, ammonia, hydrogen cyanide, ethene, ethane, ethyne, propene, isobutene, monoterpenes, ozone, water, and particle ammonium nitrate. These measurements will be made during the year 2000 burning season as part of the Southern Africa Fire Research Initiative (SAFARI-2000), an African-European-US collaborative effort. This study will determine the concentration of oxygenated organic molecules in the initial emissions from tropical fires, and examine how such emissions impact the photochemistry of smoke plumes. The project will also involve an intercomparison of the FTIR with a number of other gas measurement techniques using laboratory fires.

生物质燃烧是一种有用的土地管理工具，是重要农业系统的关键组成部分，也是可再生能源的来源。 生物质燃烧也是大气痕量气体和颗粒物的重要来源。 这些排放的初始特征和转化的不确定性是大气化学、辐射传输和全球气候变化模型的主要限制因素。 在该项目中，将使用机载傅里叶变换红外光谱仪测量生物质燃烧烟雾中各种稳定和活性排放物。 测量将包括：二氧化碳、一氧化碳、甲烷、甲醛、2-羟基乙醛、甲醇、苯酚、乙酸、甲酸、二氧化硫、硫化羰、一氧化氮、二氧化氮、一氧化二氮、氨、氰化氢、乙烯、乙烷、乙炔、丙烯、异丁烯、单萜、臭氧、水和颗粒硝酸铵。 这些测量将在2000年燃烧季节进行，作为南部非洲火灾研究倡议（SAFARI-2000）的一部分，这是非洲-欧洲-美国的一项合作努力。 这项研究将确定热带火灾最初排放物中含氧有机分子的浓度，并研究这些排放物如何影响烟羽的光化学。 该项目还将涉及傅里叶变换红外光谱与其他一些使用实验室火灾的气体测量技术的相互比较。