| 项目编号: | 1433432
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| 项目名称: | AGS-PRF: Atmospheric Lifecycle of Organic Carbon Through Multiple Generations of Aging |
| 作者: | Gabriel Isaacman-VanWertz
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| 承担单位: | Isaacman-VanWertz, Gabriel A
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| 批准年: | 2014
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| 开始日期: | 2015-02-01
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| 结束日期: | 2017-01-31
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| 资助金额: | USD172000
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| 资助来源: | US-NSF
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| 项目类别: | Fellowship
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Atmospheric and Geospace Sciences
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| 英文关键词: | organic compound
; organic aerosol
; atmospheric oxidation
; secondary organic aerosol
; total carbon
; atmospheric aging
; particle-phase carbon
; total gas-phase organic
; organic carbon
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| 英文摘要: | This is a Postdoctoral Research Fellowship with the objective of characterizing the chemical properties of gas- and particle-phase carbon in the atmosphere. Laboratory experiments will be conducted in an environmental chamber to observe the formation of secondary organic aerosol and the aging of organic compounds over several days. The results will lead to a better understanding of the atmospheric carbon cycle essential for developing policies that mitigate the effects of organic carbon on air quality and climate.
The experiments will take place in a reaction chamber at MIT using a Total Gas-phase Organics (TGO) instrument, an Aerodyne Aerosol Mass Spectrometer (AMS), a Chemical Ionization Mass Spectrometer (CIMS), and other instrumentation to provide detailed compositional data about specific classes of compounds and their oxidation products. Up to three days of atmospheric aging will be simulated in the reaction chamber through the atmospheric oxidation of precursors using the photolytic formation of hydroxyl radical from a steady stream of nitrous acid. Several reduced parameter chemical representations will be developed to describe the chemical properties and chemical transformations of organic aerosol and to model its oxidation pathways in the atmosphere. The experiments will help to constrain the budget of total carbon in the atmosphere. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/95120
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Gabriel Isaacman-VanWertz. AGS-PRF: Atmospheric Lifecycle of Organic Carbon Through Multiple Generations of Aging. 2014-01-01.
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